7Baggers

OSI Systems, Inc
(NASDAQ:OSIS) 

OSIS stock logo

OSI Systems, Inc. designs, manufactures, and sells electronic systems and components worldwide. It operates through three segments: Security, Healthcare, and Optoelectronics and Manufacturing. The Security segment offers baggage and parcel inspection, cargo and vehicle inspection, hold baggage and p...

Founded: 1987
Full Time Employees: 6,758
Sector: Technology
Industry: Electronic Components

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Quarterly
Annual
    Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-03-31 2018-12-31 2018-09-30 2018-03-31 2017-12-31 2017-09-30 2017-03-31 2016-12-31 2016-09-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-03-31 2013-12-31 2013-09-30 2013-03-31 2012-12-31 2012-09-30 2012-03-31 2011-12-31 2011-09-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 2004-12-31 2004-09-30 2004-06-30 2004-03-31 2003-12-31 2003-09-30 2003-06-30 2003-03-31 2002-12-31 2002-09-30 2002-06-30 
                                                                                            
      net revenues:
                                                                                            
      products
    344,921,000 350,762,000 275,810,000 392,633,000 341,179,000 333,671,000 255,808,000 390,342,000 327,360,000 290,179,000 199,709,000 321,264,000 223,724,000 216,885,000 196,954,000 262,813,000 221,857,000 205,377,000 207,212,000 264,571,000 217,124,000 208,367,000 182,747,000 203,688,000 213,257,000 223,772,000 209,761,000 224,778,000 225,402,000 182,480,000 182,484,000 181,393,000 165,653,000 168,238,000 166,590,000 153,457,000 148,730,000 135,167,000 135,501,000 204,476,000 155,915,000 190,821,000 156,488,000 139,411,000 173,974,000 143,476,000 139,026,000 145,086,000 148,864,000                                        
      services
    108,325,000 113,295,000 108,813,000 112,352,000 103,175,000 86,149,000 88,199,000 90,565,000 78,046,000 83,056,000 79,501,000 90,606,000 79,165,000 78,712,000 71,117,000 74,008,000 68,620,000 71,304,000 72,045,000 67,627,000 66,663,000 67,642,000 72,161,000 73,279,000 79,626,000 81,570,000 81,091,000 79,506,000 77,803,000 83,769,000 84,815,000 96,135,000 91,480,000 76,908,000 75,958,000 67,398,000 62,074,000 62,172,000 64,549,000 62,125,000 59,460,000 67,008,000 61,909,000 64,545,000 62,434,000 62,798,000 59,383,000 48,963,000 32,830,000                                        
      total net revenues
    453,246,000 464,057,000 384,623,000 504,985,000 444,354,000 419,820,000 344,007,000 480,907,000 405,406,000 373,235,000 279,210,000 411,870,000 302,889,000 295,597,000 268,071,000 336,821,000 290,477,000 276,681,000 279,257,000 332,198,000 283,787,000 276,009,000 254,908,000 276,967,000 292,883,000 305,342,000 290,852,000 304,284,000 303,205,000 266,249,000 267,299,000 277,528,000 257,133,000 245,146,000 242,548,000 220,855,000 210,804,000 197,339,000 200,050,000 266,601,000 215,375,000 257,829,000 218,397,000 203,956,000 236,408,000 206,274,000 198,409,000 194,049,000 181,694,000                                        
      cost of goods sold:
                                                                                            
      total cost of goods sold
    302,922,000 312,428,000 261,438,000 336,747,000 294,063,000 272,669,000 222,505,000 326,590,000 269,311,000 231,934,000 180,465,000 268,850,000 199,103,000 199,390,000 180,574,000 214,355,000 187,619,000 176,908,000 179,927,000 214,131,000 179,768,000 173,928,000 159,157,000 175,419,000 183,776,000 194,569,000 191,641,000 192,968,000 192,861,000 170,336,000 169,714,000 175,898,000 165,862,000 159,118,000 159,953,000 152,768,000 140,745,000 129,275,000 132,079,000 177,368,000 142,771,000 168,555,000 144,155,000 133,449,000 155,469,000 138,328,000 126,571,000 123,961,000 120,339,000                                        
      gross profit
    150,324,000 151,629,000 123,185,000 168,238,000 150,291,000 147,151,000 121,502,000 154,317,000 136,095,000 141,301,000 98,745,000 143,020,000 103,786,000 96,207,000 87,497,000 122,466,000 102,858,000 99,773,000 99,330,000 118,067,000 104,019,000 102,081,000 95,751,000 101,548,000 109,107,000 110,773,000 99,211,000 111,316,000 110,344,000 95,913,000 97,585,000 101,630,000 91,271,000 86,028,000 82,595,000 68,087,000 70,059,000 68,064,000 67,971,000 89,233,000 72,604,000 89,274,000 74,242,000 70,507,000 80,939,000 67,946,000 71,838,000 70,088,000 61,355,000 69,131,000 65,824,000 52,857,000 62,253,000 60,023,000 46,898,000 63,985,000 53,217,000 56,365,000 44,467,000 47,566,000 49,831,000 54,419,000 49,635,000 59,542,000 56,386,000 59,001,000 44,110,000 56,504,000 43,936,000 39,281,000 38,497,000 51,493,000 43,073,000 45,139,000 36,953,000 38,206,000 33,178,000 36,452,000 33,790,000 36,620,000 19,574,000 14,597,000 12,566,000 16,422,000 16,094,000 14,487,000 12,980,000  
      yoy
    0.02% 3.04% 1.39% 9.02% 10.43% 4.14% 23.05% 7.90% 31.13% 46.87% 12.86% 16.78% 0.90% -3.57% -11.91% 3.73% -1.12% -2.26% 3.74% 16.27% -4.66% -7.85% -3.49% -8.78% -1.12% 15.49% 1.67% 9.53% 20.90% 11.49% 18.15% 49.26% 30.28% 26.39% 21.52% -23.70% -3.51% -23.76% -8.45% 26.56% -10.30% 31.39% 3.35% 0.60% 31.92% -1.71% 9.14% 32.60% -1.44% 15.17% 40.36% -17.39% 16.98% 6.49% 5.47% 34.52% 6.79% 3.58% -10.41% -20.11% -11.63% -7.77% 12.53% 5.38% 28.34% 50.20% 14.58% 9.73% 2.00% -12.98% 4.18% 34.78% 29.82% 23.83% 9.36% 4.33% 69.50% 149.72% 168.90% 122.99% 21.62% 0.76% -3.19%      
      qoq
    -0.86% 23.09% -26.78% 11.94% 2.13% 21.11% -21.26% 13.39% -3.68% 43.10% -30.96% 37.80% 7.88% 9.95% -28.55% 19.06% 3.09% 0.45% -15.87% 13.51% 1.90% 6.61% -5.71% -6.93% -1.50% 11.65% -10.87% 0.88% 15.05% -1.71% -3.98% 11.35% 6.09% 4.16% 21.31% -2.81% 2.93% 0.14% -23.83% 22.90% -18.67% 20.25% 5.30% -12.89% 19.12% -5.42% 2.50% 14.23% -11.25% 5.02% 24.53% -15.09% 3.72% 27.99% -26.70% 20.23% -5.59% 26.76% -6.52% -4.55% -8.43% 9.64% -16.64% 5.60% -4.43% 33.76% -21.93% 28.61% 11.85% 2.04% -25.24% 19.55% -4.58% 22.15% -3.28% 15.15% -8.98% 7.88% -7.73% 87.08% 34.10% 16.16% -23.48% 2.04% 11.09% 11.61%   
      operating expenses:
                                                                                            
      selling, general and administrative
    71,487,000 70,201,000 66,955,000 74,685,000 73,249,000 70,722,000 72,223,000 71,745,000 66,584,000 71,604,000 59,798,000 67,165,000 53,707,000 54,003,000 53,438,000 65,538,000 57,813,000 54,879,000 57,323,000 68,123,000 57,906,000 56,101,000 58,617,000 60,306,000 65,576,000 63,902,000 62,177,000 67,278,000 67,097,000 61,707,000 59,846,000 60,098,000 55,647,000 49,431,000 51,544,000 43,553,000 39,233,000 43,141,000 40,393,000 41,710,000 37,970,000 47,894,000 44,182,000 39,399,000 45,556,000 42,214,000 37,752,000 36,829,000                    27,632,750 36,199,000 37,961,000 36,370,000 25,184,500 33,805,000  33,415,000 20,137,750 30,165,000 25,595,000 24,793,000 26,032,000 12,419,000 8,189,000 7,521,000 5,266,000 7,474,000 6,771,000 6,819,000  
      research and development
    19,455,000 19,759,000 20,427,000 18,844,000 18,570,000 18,257,000 17,773,000 15,859,000 17,144,000 16,350,000 15,922,000 15,504,000 14,852,000 14,456,000 14,540,000 14,639,000 15,150,000 14,977,000 14,817,000 13,898,000 13,932,000 13,784,000 12,082,000 12,823,000 15,358,000 14,881,000 14,246,000 13,695,000 12,805,000 13,753,000 15,934,000 15,088,000 15,100,000 14,395,000 12,938,000 12,478,000 12,945,000 13,045,000 11,881,000 13,170,000 12,559,000 13,240,000 12,670,000 10,579,000 11,175,000 11,020,000 12,386,000 11,858,000 11,316,000 12,932,000 11,546,000 10,880,000 12,436,000 11,842,000 9,231,000 11,106,000 9,129,000 10,353,000 7,989,000 9,408,000 8,572,000 8,669,000 10,213,000 11,852,000 12,055,000 11,725,000 9,729,000 11,022,000 11,390,000 11,215,000 10,258,000 9,558,000 8,851,000  8,731,000 9,495,000 7,306,000 7,066,000 6,670,000 6,685,000 3,543,000 2,373,000 2,037,000 2,403,000 2,702,000 2,215,000 1,546,000  
      impairment, restructuring and other charges
    6,168,000 2,874,000         466,000 3,200,000 890,000 2,257,000 1,219,000    2,510,000            14,062,000 8,297,000 1,130,000 2,508,000 9,420,000 9,957,000 4,537,000 11,097,000      2,507,000 2,179,000  2,286,000 2,723,000                                         
      total operating expenses
    97,110,000 92,834,000 90,112,000 95,216,000 94,074,000 89,194,000 91,174,000 91,499,000 84,732,000 88,980,000 76,186,000 85,869,000 69,449,000 70,716,000 69,197,000 82,909,000 74,432,000 70,687,000 74,650,000 84,213,000 71,553,000 69,723,000 79,058,000 78,092,000 85,482,000 77,854,000 74,324,000 79,196,000 78,637,000 79,656,000 89,842,000 83,483,000 71,877,000 66,334,000 73,902,000 65,988,000 56,715,000 67,283,000 52,274,000 58,305,000 54,149,000 63,213,000 57,578,000 52,485,000 58,910,000 57,473,000 52,424,000 51,410,000 51,241,000 50,926,000 47,525,000 45,247,000 50,457,000 46,703,000 41,463,000 50,563,000 44,864,000 45,570,000 40,269,000 40,822,000 45,357,000 47,160,000 48,585,000 50,290,000 50,840,000 52,944,000 46,025,000 51,994,000 49,925,000 71,048,000 47,408,000 47,247,000 42,707,000 42,266,000 43,467,000 45,627,000 37,759,000 33,210,000 32,012,000 33,821,000 15,962,000 10,562,000 10,619,000 10,499,000 10,176,000 8,986,000 8,365,000  
      income from operations
    53,214,000 58,795,000 33,073,000 73,022,000 56,217,000 57,957,000 30,328,000 31,560,750 51,363,000 52,321,000 22,559,000 57,151,000 34,337,000 25,491,000 18,300,000 39,557,000 28,426,000 29,086,000 24,680,000 33,854,000 32,466,000 32,358,000 16,693,000 23,456,000 23,625,000 32,919,000 24,887,000 32,120,000 31,707,000 16,257,000 7,743,000 18,147,000 19,394,000 19,694,000 8,693,000 2,099,000 13,344,000 781,000 15,697,000 30,928,000 18,455,000 26,061,000 16,664,000 18,022,000 22,029,000 10,473,000 19,414,000 18,678,000 10,114,000 18,205,000 18,299,000 7,610,000 11,796,000 13,320,000 5,435,000 13,422,000 8,353,000 10,795,000 4,198,000 6,744,000 4,474,000 7,259,000 1,050,000 9,252,000 5,546,000 6,057,000 -1,915,000 4,510,000 -5,989,000 -31,767,000 -8,911,000 4,246,000 366,000 2,873,000 -6,514,000 -7,421,000 -4,581,000 3,242,000 1,778,000 2,799,000 3,612,000 4,035,000 1,947,000 5,923,000 5,918,000 5,501,000 4,615,000  
      yoy
    -5.34% 1.45% 9.05% 131.37% 9.45% 10.77% 34.44% -44.78% 49.58% 105.25% 23.27% 44.48% 20.79% -12.36% -25.85% 16.85% -12.44% -10.11% 47.85% 44.33% 37.42% -1.70% -32.92% -26.97% -25.49% 102.49% 221.41% 77.00% 63.49% -17.45% -10.93% 764.55% 45.34% 2421.64% -44.62% -93.21% -27.69% -97.00% -5.80% 71.61% -16.22% 148.84% -14.17% -3.51% 117.81% -42.47% 6.09% 145.44% -14.26% 36.67% 236.69% -43.30% 41.22% 23.39% 29.47% 99.02% 86.70% 48.71% 299.81% -27.11% -19.33% 19.84% -154.83% 105.14% -192.60% -119.07% -78.51% 6.22% -1736.34% -1205.71% 36.80% -157.22% -107.99% -11.38% -466.37% -365.13% -226.83% -19.65% -8.68% -52.74% -38.97% -26.65% -57.81%      
      qoq
    -9.49% 77.77% -54.71% 29.89% -3.00% 91.10% -3.91% -38.55% -1.83% 131.93% -60.53% 66.44% 34.70% 39.30% -53.74% 39.16% -2.27% 17.85% -27.10% 4.28% 0.33% 93.84% -28.83% -0.72% -28.23% 32.27% -22.52% 1.30% 95.04% 109.96% -57.33% -6.43% -1.52% 126.55% 314.15% -84.27% 1608.58% -95.02% -49.25% 67.59% -29.19% 56.39% -7.54% -18.19% 110.34% -46.05% 3.94% 84.67% -44.44% -0.51% 140.46% -35.49% -11.44% 145.08% -59.51% 60.68% -22.62% 157.15% -37.75% 50.74% -38.37% 591.33% -88.65% 66.82% -8.44% -416.29% -142.46% -175.30% -81.15% 256.49% -309.87% 1060.11% -87.26% -144.11% -12.22% 62.00% -241.30% 82.34% -36.48% -22.51% -10.48% 107.24% -67.13% 0.08% 7.58% 19.20%   
      interest and other expense
    -3,995,000 -10,713,000 -7,398,000 -7,224,000 -8,228,000 -8,619,000 -7,359,000 -8,158,000 -7,407,000 -6,534,000 -5,748,000 -5,702,000 -5,727,000 -5,180,000 -3,432,000 -2,428,000 -2,301,000 -2,217,000 -2,016,000 -4,142,000 -4,167,000 -4,233,000 -4,189,000 -4,479,000 -4,706,000                   1,370,000 1,503,000                                            
      income before income taxes
    49,219,000 48,082,000 25,675,000 65,798,000 47,989,000 49,338,000 22,969,000 54,660,000 43,956,000 45,787,000 16,811,000 51,449,000 28,610,000 20,311,000 14,868,000 37,129,000 53,498,000 26,869,000 22,664,000 29,712,000 28,299,000 28,125,000 12,504,000 18,977,000 18,919,000 28,075,000 20,151,000 26,525,000 26,087,000 10,925,000 3,118,000 12,865,000 15,145,000 19,205,000 6,712,000 941,000 12,678,000 158,000 14,903,000 30,181,000 17,643,000 25,229,000 15,800,000 16,652,000 20,526,000 9,003,000 18,073,000 17,293,000 9,017,000   6,811,000   4,845,000    3,593,000                              
      provision for income taxes
    -9,003,000 -9,383,000 -5,119,000 -13,050,000 -6,855,000 -11,519,000 -5,033,000 -9,981,000 -9,913,000 -9,234,000 -3,932,000 -9,068,000 -6,802,000 -3,957,000 -3,633,000 -3,366,000 -10,763,000 -7,072,000 -3,612,000   -8,087,000    -7,089,000     565,000 59,816,000 4,988,000 5,186,000 1,879,000 264,000  50,000 4,098,000 7,748,000 4,415,000 6,988,000 4,551,000 11,851,000 5,953,000 2,609,000 4,544,000 4,872,000 2,678,000 4,838,000 5,277,000 2,050,000 3,642,000 3,596,000 1,453,000 4,881,000 2,416,000 3,059,000 1,083,000 1,844,000 1,296,000 2,200,000 53,000 2,556,000 -2,643,000 1,721,000  -1,269,000 3,678,000 -12,106,000    1,861,000 -2,856,000 -4,707,000 -1,961,000 789,000 570,000 773,000 739,000 1,221,000 583,000 2,189,000 1,447,000 1,302,000 1,583,000  
      net income
    40,216,000 38,699,000 20,556,000 52,748,000 41,134,000 37,819,000 17,936,000 44,679,000 34,043,000 36,553,000 12,879,000 42,381,000 21,808,000 16,354,000 11,235,000 33,763,000 42,735,000 19,797,000 19,052,000 25,894,000 18,773,000 20,038,000 9,344,000 13,965,000 19,558,000 20,986,000 20,743,000 19,626,000 19,107,000 9,402,000 2,553,000 -46,951,000 10,157,000 14,019,000 4,833,000 677,000 9,343,000 108,000 10,805,000 22,433,000 13,228,000 18,241,000 11,249,000 4,801,000 14,573,000 6,394,000 13,529,000 12,421,000 6,339,000 12,575,000 12,301,000 4,761,000 8,766,000 9,218,000 3,392,000 7,983,000 6,112,000 6,952,000 2,510,000 4,285,000 2,573,000 4,162,000 132,000 5,538,000 6,909,000 3,480,000 -2,067,000 4,283,000 3,613,000 -20,613,000 -6,041,000 734,000 1,011,000 85,000 -4,189,000 -3,235,000 -2,928,000 2,458,000 1,310,000 2,188,000 3,441,000 3,044,000 1,283,000 5,225,000 3,607,000 3,760,000 3,201,000  
      yoy
    -2.23% 2.33% 14.61% 18.06% 20.83% 3.46% 39.27% 5.42% 56.10% 123.51% 14.63% 25.52% -48.97% -17.39% -41.03% 30.39% 127.64% -1.20% 103.90% 85.42% -4.01% -4.52% -54.95% -28.84% 2.36% 123.21% 712.50% -141.80% 88.12% -32.93% -47.18% -7035.16% 8.71% 12880.56% -55.27% -96.98% -29.37% -99.41% -3.95% 367.26% -9.23% 185.28% -16.85% -61.35% 129.89% -49.15% 9.98% 160.89% -27.69% 36.42% 262.65% -40.36% 43.42% 32.59% 35.14% 86.30% 137.54% 67.04% 1801.52% -22.63% -62.76% 19.60% -106.39% 29.30% 91.23% -116.88% -65.78% 483.51% 257.37% -24350.59% 44.21% -122.69% -134.53% -96.54% -419.77% -247.85% -185.09% -19.25% 2.10% -58.12% -4.60% -19.04% -59.92%      
      qoq
    3.92% 88.26% -61.03% 28.23% 8.77% 110.86% -59.86% 31.24% -6.87% 183.82% -69.61% 94.34% 33.35% 45.56% -66.72% -20.99% 115.87% 3.91% -26.42% 37.93% -6.31% 114.45% -33.09% -28.60% -6.80% 1.17% 5.69% 2.72% 103.22% 268.27% -105.44% -562.25% -27.55% 190.07% 613.88% -92.75% 8550.93% -99.00% -51.83% 69.59% -27.48% 62.16% 134.31% -67.06% 127.92% -52.74% 8.92% 95.95% -49.59% 2.23% 158.37% -45.69% -4.90% 171.76% -57.51% 30.61% -12.08% 176.97% -41.42% 66.54% -38.18% 3053.03% -97.62% -19.84% 98.53% -268.36% -148.26% 18.54% -117.53% 241.22% -923.02% -27.40% 1089.41% -102.03% 29.49% 10.48% -219.12% 87.63% -40.13% -36.41% 13.04% 137.26% -75.44% 44.86% -4.07% 17.46%   
      earnings per share:
                                                                                            
      basic
    2.44 2.31 1.22 3.15 2.45 2.26 1.07 2.63 2.15 0.77 2.52 1.3 0.97 0.66 1.97 2.45 1.11 1.06 1.44 1.04 1.12 0.52 0.78 1.08 1.15 1.14 1.09 1.06 0.52 0.14 -2.47 0.54 0.74 0.25 0.04   0.55           0.63 0.62  0.46 0.49  0.44 0.34 0.39  0.25 0.15 0.24  0.32 0.39 0.2  -0.343 0.21 -1.23  0.05 0.06                
      diluted
    2.33 2.22 1.18 3.04 2.4 2.22 1.05 2.56 1.95 2.11 0.75 2.46 1.27 0.96 0.65 1.93 2.41 1.09 1.04 1.4 1.03 1.1 0.51 0.77 1.06 1.12 1.1 1.05 1.03 0.5 0.13 -2.47 0.52 0.72 0.25 0.03   0.53           0.62 0.61  0.45 0.47  0.43 0.33 0.39  0.24 0.15 0.24  0.31 0.39 0.2  -0.343 0.21 -1.23  0.03 0.06                
      shares used in per share calculation:
                                                                                            
      basic
    16,474 16,740 16,896 11 16,781 16,724 16,742 24 17,042 16,995 16,825 -30 16,809 16,841 16,924 -183 17,417 17,838 17,947 -13 17,969 17,924 18,051 -60 18,182 18,312 18,259 18,079 18,085 18,090 18,569 18,971 18,778 18,913 19,036 18,943 19,336 19,740 19,734 -11 19,801 19,811 19,820 19,936 19,961 19,971 19,987 19,999 19,906 19,815 19,685 19,576 18,978 18,752 18,433 137 18,066 17,643 17,503 -39 17,336 17,536 17,797 95 17,624 17,302 17,171 65 16,920 16,747 16,667,671 190,524 16,437,974                
      diluted
    17,291 17,469 17,473 89 17,159 17,040 17,055 53 17,425 17,302 17,175 39 17,184 17,103 17,180 -166 17,709 18,106 18,306 110 18,298 18,196 18,335 -93 18,513 18,682 18,903 18,671 18,624 18,736 19,146 18,971 19,591 19,515 19,653 19,591 19,941 20,386 20,474 11 20,529 20,487 20,529 20,548 20,589 20,620 20,555 20,609 20,571 20,433 20,237 20,089 19,687 19,475 19,078 170 18,772 18,014 17,818 -28 17,396 17,558 18,166 81 17,922 17,675 17,171 65 17,237 16,747 16,667,671 190,524 16,765,508                
      restructuring and other charges
      2,730,000 1,687,000 2,255,000 215,000 1,178,000 624,000 1,004,000 1,026,000                    4,196,000          1,606,250 3,620,000 2,079,000 726,000   4,239,000    931,000   905,000 903,000  1,306,000 946,000 607,000    2,798,000                           
      other income
                    27,373,000              158,000   2,094,000                                                       
      impairment, restructuring and other charges (benefit)
                   1,202,500 1,469,000 831,000  1,978,000 -285,000 -162,000 8,359,000 380,000 4,548,000                                                                
      benefit for income taxes
                       -5,193,250 -9,526,000  -3,160,000 -1,464,500 639,000  592,000                                        -1,055,000    -3,179,000 454,000 820,000                
      restructuring and other charges (benefit)
                             -929,000 -2,099,000                                                              
      interest expense and other expense
                             -4,844,000 -4,736,000                                                              
      interest expense
                                                                 -863,000 -895,000 -1,050,000 -1,162,000 -1,281,000 -1,208,000 -1,024,000 -1,239,000 -1,267,000 -1,014,000 -372,000 -236,000 -399,000 -551,000 -1,113,000 153,000 -98,000 -54,000 58,000 65,000 80,000 81,000 204,000 -203,000 -207,000 -174,000  
      interest and other income
                                                                                            
      benefit from income taxes
                                        3,335,000                                                    
      net income per share
                                                                                            
      basic
                                        0.48 0.01  0.54 0.67 0.92 0.57 0.24 0.73 0.32 0.68 0.62 0.32   0.24   0.18    0.14                              
      diluted
                                        0.47 0.01  0.52 0.64 0.89 0.55 0.23 0.71 0.31 0.66 0.6 0.31   0.24   0.18    0.14                              
      interest expense and other income
                                                        612,000    175,000                                
      selling, general and administrative expenses
                                                    39,925,000 37,063,000 35,979,000 34,367,000 37,116,000 33,958,000 31,976,000 38,151,000 34,789,000 34,610,000 32,280,000 30,291,000 34,384,000 35,693,000 37,571,000 37,105,000 37,629,000 39,105,000 36,211,000                      
      revenues
                                                     208,439,000 187,993,000 161,317,000 174,931,000 169,287,000 128,453,000 165,328,000 145,401,000 150,621,000 133,761,000 139,063,000 144,095,000 159,042,000 148,161,000 171,173,000 156,708,000 164,194,000 131,013,000 152,799,000 126,498,000 137,458,000 115,529,000 125,586,000 108,092,000 117,138,000 101,870,000 100,713,000 94,153,000 102,531,000 87,644,000 95,798,000 61,531,000 51,095,000 38,645,000 50,924,000 50,946,000 43,673,000 37,101,000  
      cost of goods sold
                                                     139,308,000 122,169,000 108,460,000 112,678,000 109,264,000 81,555,000 101,343,000 92,184,000 94,256,000 89,294,000 91,497,000 94,264,000 104,623,000 98,526,000 111,631,000 100,322,000 105,193,000 86,903,000 96,295,000 82,562,000 98,177,000 77,032,000 74,093,000 65,019,000  64,917,000 62,507,000 60,975,000 66,079,000 53,854,000 59,178,000 41,957,000 36,498,000 26,079,000 34,502,000 34,852,000 29,186,000 24,121,000  
      income before provision for income taxes
                                                     17,413,000 17,578,000  12,408,000 12,814,000  5,533,000 8,528,000 10,011,000                               
      restructuring, and other charges
                                                          256,000                                  
      interest expense net
                                                                                            
      impairment, restructuring, and other charges
                                                               1,123,000 2,401,000  801,000 1,333,000 1,156,000 2,114,000 85,000 2,302,000 2,226,000 21,543,000                   
      income before provision for income taxes and minority interest
                                                               2,610,500 3,891,000 6,396,000  8,202,000 4,384,000 4,889,000  3,633,000 8,629,000 -32,865,000  4,436,000 221,000 2,892,000 -7,045,000 -7,943,000 -4,889,000 3,247,000 1,811,000 2,577,750 4,132,000 4,256,000 1,923,000 7,485,000 5,095,000 5,100,000 4,789,000  
      minority interest of net earnings of consolidated subsidiaries
                                                               6,500 22,000 34,000                           
      income before benefit for income taxes and minority interest
                                                                  155,000                          
      minority interest in net earnings of consolidated subsidiaries
                                                                  -30,000                          
      income per share:
                                                                                            
      basic
                                                                  0.01                          
      diluted
                                                                  0.01                          
      other income:
                                                                                            
      minority interest benefit
                                                                   19,000 -118,000 312,000                       
      interest income
                                                                     113,000 119,000 153,000 85,000 95,000 141,000 87,000 91,000 69,000 20,000 413,000 -27,000 103,000 87,000 1,400,000 -209,000 -301,000 -304,000      
      other expense
                                                                          -74,000                  
      loss before benefit for income taxes and minority interest
                                                                      -3,004,000                      
      minority interest
                                                                      -118,000 -619,000 -1,338,000 146,000 638,000 -796,000 -30,000 -946,000  17,000   69,000  48,000 9,000 -57,000 -21,250 -41,000 -38,000 -5,000  
      loss per share:
                                                                                            
      basic
                                                                      -0.12    -0.36                  
      diluted
                                                                      -0.12    -0.36                  
      other operating expenses
                                                                        110,000 329,000 780,000                  
      other
                                                                       3,943,000 15,772,000 74,000                   
      income before minority interest
                                                                       -5,622,000 4,951,000 -20,759,000  -529,000 1,041,000  -4,189,000 193,000 -2,928,000   2,018,000 3,393,000 3,035,000 1,340,000 2,663,250 3,648,000 3,798,000 3,206,000  
      loss before provision for income taxes and minority interest
                                                                          -9,858,000                  
      loss before minority interest
                                                                          -6,679,000                  
      restructuring charges
                                                                              800,000     265,250   1,061,000      
      management retention bonus
                                                                           -1,000 51,000 51,000 521,000 438,000 288,000 549,000 549,000          
      impairment of equity investment
                                                                               45,500 182,000   61,750   247,000      
      gain on sale of marketable securities
                                                                             349,000      752,000 -376,000        
      cost of goods sold -
                                                                             71,999,000               
      selling, general and administrative -
                                                                             33,515,000               
      research and development -
                                                                             8,700,000               
      basic earnings per share
                                                                             0.01               
      diluted earnings per share
                                                                               0.013 -0.18 0.15 0.08 0.13 0.23 0.2 0.09 0.183 0.24 0.25   
      weighted-average shares outstanding
                                                                             16,299,337 16,241,146,000  16,276,323 16,168,778 16,237,593 15,236,399,000 14,626,245 14,587,369 14,538,734  14,467,289    
      weighted-average diluted shares outstanding
                                                                             16,490,714 16,241,146,000  16,276,323 16,592,724 16,609,329          
      minority interest in net loss of subsidiary
                                                                                            
      earnings per common share - basic
                                                                              -260              
      earnings per common share - diluted
                                                                              -260              
      three months ended september 30, 2005 include non-cash stock-based compensation expense as follows:
                                                                                            
      earnings per share
                                                                               0.013 -0.18 0.15 0.08 0.133 0.24 0.21 0.09      
      write down of equity investment
                                                                                       256,500 1,026,000    
      write-off of deferred acquisition costs
                                                                                       152,000  608,000   
      weighted-average shares outstanding — assuming dilution
                                                                                    15,169,598        
      weighted-average shares outstanding - assuming dilution
                                                                                     15,077,424       
      weighted-average shares outstanding—assuming dilution
                                                                                      14,955,733  15,002,341    
      goodwill amortization
                                                                                            
      earnings per common share
                                                                                       190 250 260 250  
      weighted-average shares outstanding -assuming dilution
                                                                                         14,842,002 13,356,008,000  
      earnings per common share -assuming dilution
                                                                                          240  
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 2004-12-31 2004-09-30 2004-06-30 2004-03-31 2003-12-31 2003-09-30 2003-06-30 2003-03-31 2002-12-31 2002-09-30 2002-06-30 
                                                                                                      
        assets
                                                                                                      
        current assets:
                                                                                                      
        cash and cash equivalents
      345,236,000 106,405,000 106,405,000 106,405,000 95,830,000 95,353,000 95,353,000 95,353,000 101,443,000 76,750,000 76,750,000 76,750,000 65,622,000 64,202,000 64,202,000 64,202,000 83,279,000 80,613,000 80,613,000 80,613,000 92,465,000 76,102,000 76,102,000 76,102,000 101,026,000 96,316,000 96,316,000 96,316,000 107,649,000 84,814,000 84,814,000 84,814,000 194,001,000 169,650,000 169,650,000 169,650,000 158,472,000 104,370,000 104,370,000 104,370,000 97,425,000 47,593,000 47,593,000 47,593,000 49,041,000 38,831,000 38,831,000 38,831,000 39,848,000 34,697,000 34,697,000 34,697,000 47,680,000 91,452,000 91,452,000 91,452,000 90,787,000 55,619,000 55,619,000 55,619,000 39,630,000 51,989,000 51,989,000 51,989,000 46,337,000 25,172,000 25,172,000 25,172,000 28,651,000 18,232,000 18,232,000 18,232,000 14,919,000 15,980,000 15,980,000 15,980,000 18,787,000 13,799,000 13,799,000 13,799,000 13,097,000 17,127,000 16,102,000 14,623,000 12,655,000 29,116,000 24,629,000 39,879,000 15,851,000 85,356,000 89,969,000 94,246,000 70,965,000 89,469,000 67,242,000 67,604,000 
        accounts receivable
      870,450,000 837,743,000 837,743,000 837,743,000 672,176,000 648,155,000 648,155,000 648,155,000 503,828,000 380,845,000 380,845,000 380,845,000 300,663,000 307,973,000 307,973,000 307,973,000 282,872,000 290,653,000 290,653,000 290,653,000 258,594,000 269,840,000 269,840,000 269,840,000 257,505,000 238,440,000 238,440,000 238,440,000 218,433,000 210,744,000 210,744,000 210,744,000 216,680,000 206,526,000 206,526,000 206,526,000 183,838,000 141,716,000 141,716,000 141,716,000 159,787,000 178,519,000 178,519,000 178,519,000 165,352,000 185,773,000 185,773,000 185,773,000 142,806,000 206,817,000 206,817,000 206,817,000 169,418,000 156,867,000 156,867,000 156,867,000 157,830,000 136,716,000 136,716,000 136,716,000 136,357,000 132,728,000 132,728,000 132,728,000 112,787,000 110,453,000 110,453,000 110,453,000 120,343,000 156,781,000 156,781,000 156,781,000 140,188,000 140,483,000 140,483,000 140,483,000 120,134,000 119,419,000 119,419,000 119,419,000 101,084,000 101,392,000 92,622,000 89,227,000 93,187,000 90,726,000 85,353,000 85,774,000 83,977,000 38,988,000 32,902,000 36,901,000 41,027,000   38,812,000 
        inventories
      435,290,000 407,174,000 407,174,000 407,174,000 438,954,000 397,939,000 397,939,000 397,939,000 442,797,000 338,008,000 338,008,000 338,008,000 371,795,000 333,907,000 333,907,000 333,907,000 344,643,000 294,208,000 294,208,000 294,208,000 283,523,000 241,226,000 241,226,000 241,226,000 241,317,000 273,711,000 273,711,000 273,711,000 297,704,000 313,552,000 313,552,000 313,552,000 304,293,000 248,510,000 248,510,000 248,510,000 267,191,000 273,288,000 273,288,000 273,288,000 291,092,000 230,421,000 230,421,000 230,421,000 265,415,000 234,138,000 234,138,000 234,138,000 239,026,000 206,213,000 206,213,000 206,213,000 198,292,000 195,178,000 195,178,000 195,178,000 202,452,000 169,634,000 169,634,000 169,634,000 159,870,000 125,930,000 125,930,000 125,930,000 122,804,000 150,763,000 150,763,000 150,763,000 145,951,000 144,807,000 144,807,000 144,807,000 149,340,000 120,174,000 120,174,000 120,174,000 121,702,000 120,604,000 120,604,000 120,604,000 116,619,000                
        prepaid expenses and other current assets
      66,357,000 71,539,000 71,539,000 71,539,000 65,569,000 74,077,000 74,077,000 74,077,000 71,182,000 44,300,000 44,300,000 44,300,000 40,454,000 40,062,000 40,062,000 40,062,000 47,742,000 43,930,000 43,930,000 43,930,000 26,828,000 30,541,000 30,541,000 30,541,000 38,522,000 32,432,000 32,432,000 32,432,000 35,050,000 41,587,000 41,587,000 41,587,000 61,362,000 28,314,000 28,314,000 28,314,000 47,066,000 35,944,000 35,944,000 35,944,000 53,057,000 40,101,000 40,101,000 40,101,000 39,095,000 46,978,000 46,978,000 46,978,000 93,932,000 78,972,000 78,972,000 78,972,000 37,737,000 20,411,000 20,411,000 20,411,000 17,277,000 21,149,000 21,149,000 21,149,000 15,605,000 18,433,000 18,433,000 18,433,000 19,839,000 13,777,000 13,777,000 13,777,000 14,363,000 14,064,000 14,064,000 14,064,000 17,500,000 11,967,000 11,967,000 11,967,000 16,176,000 9,011,000 3,805,000 3,805,000 5,041,000                
        total current assets
      1,717,333,000 1,422,861,000 1,422,861,000 1,422,861,000 1,272,529,000 1,215,524,000 1,215,524,000 1,215,524,000 1,119,250,000 839,903,000 839,903,000 839,903,000 778,534,000 746,144,000 746,144,000 746,144,000 758,536,000 709,404,000 709,404,000 709,404,000 661,410,000 617,709,000 617,709,000 617,709,000 638,370,000 640,899,000 640,899,000 640,899,000 658,836,000 650,697,000 650,697,000 650,697,000 776,336,000 653,000,000 653,000,000 653,000,000 656,567,000 555,318,000 555,318,000 555,318,000 644,827,000 541,521,000 541,521,000 541,521,000 580,871,000 579,230,000 579,230,000 579,230,000 515,612,000 526,699,000 526,699,000 526,699,000 472,153,000 483,113,000 483,113,000 483,113,000 485,966,000 405,286,000 405,286,000 405,286,000 371,950,000 349,201,000 349,201,000 349,201,000 327,835,000 323,243,000 323,243,000 323,243,000 331,802,000 356,455,000 356,455,000 356,455,000 345,852,000 314,639,000 314,639,000 314,639,000 306,085,000 283,299,000 283,299,000 283,000 263,251,000 258,046,000 248,909,000 237,673,000 235,195,000 235,565,000 227,577,000 240,889,000 205,146,000 189,354,000 181,744,000 187,012,000 190,561,000 181,134,000 157,798,000 150,129,000 
        property and equipment
      125,765,000 126,747,000 126,747,000 126,747,000 124,352,000 113,967,000 113,967,000 113,967,000 110,399,000 108,933,000 108,933,000 108,933,000 109,139,000 109,684,000 109,684,000 109,684,000 112,755,000 118,004,000 118,004,000 118,004,000 125,477,000 127,936,000 127,936,000 127,936,000 128,518,000 127,385,000 127,385,000 127,385,000 124,916,000 115,524,000 115,524,000 115,524,000 113,667,000 141,539,000 141,539,000 141,539,000 161,081,000 183,114,000 183,114,000 183,114,000 187,204,000 225,703,000 225,703,000 225,703,000 227,654,000 260,479,000 260,479,000 260,479,000 265,739,000 249,029,000 249,029,000 249,029,000 238,815,000 111,664,000 111,664,000 111,664,000 91,160,000 55,017,000 55,017,000 55,017,000 52,064,000 51,515,000 51,515,000 51,515,000 51,307,000 42,232,000 42,232,000 42,232,000 44,931,000 47,191,000 47,191,000 47,191,000 46,696,000 48,051,000 48,051,000 48,051,000 47,524,000 42,521,000 42,521,000 42,521,000 37,169,000 34,337,000 33,941,000  31,092,000 22,680,000 19,914,000  14,414,000 14,524,000   14,403,000 13,992,000 13,105,000  
        goodwill
      385,075,000 387,393,000 387,393,000 387,393,000 382,861,000 351,480,000 351,480,000 351,480,000 352,119,000 349,505,000 349,505,000 349,505,000 346,716,000 336,357,000 336,357,000 336,357,000 336,655,000 320,304,000 320,304,000 320,304,000 319,211,000 310,627,000 310,627,000 310,627,000 308,639,000 307,108,000 307,108,000 307,108,000 307,461,000 292,213,000 292,213,000 292,213,000 300,716,000 242,129,000 242,129,000 242,129,000 241,727,000 122,819,000 122,819,000 122,819,000 122,297,000 98,167,000 98,167,000 98,167,000 96,712,000 92,607,000 92,607,000 92,607,000 92,196,000 83,743,000 83,743,000 83,743,000 83,646,000 82,149,000 82,149,000 82,149,000 77,365,000 70,292,000 70,292,000 70,292,000 70,332,000 63,941,000 63,941,000 63,941,000 64,257,000 60,195,000 60,195,000 60,195,000 59,045,000 60,408,000 60,408,000 60,408,000 60,058,000 50,286,000 50,286,000 50,286,000 45,927,000 29,066,000 29,066,000 29,066,000 28,605,000 28,415,000 28,633,000 28,697,000 24,834,000 24,780,000 24,320,000 23,925,000 17,767,000 14,917,000 14,141,000 11,436,000 7,153,000 6,507,000 6,085,000  
        intangible assets
      183,317,000 183,290,000 183,290,000 183,290,000 183,322,000 139,529,000 139,529,000 139,529,000 142,056,000 140,857,000 140,857,000 140,857,000 140,192,000 138,370,000 138,370,000 138,370,000 139,781,000 127,608,000 127,608,000 127,608,000 130,058,000 128,279,000 128,279,000 128,279,000 129,471,000 132,954,000 132,954,000 132,954,000 136,432,000 142,001,000 142,001,000 142,001,000 147,057,000 118,450,000 118,450,000 118,450,000 120,575,000 56,283,000 56,283,000 56,283,000 58,373,000 50,413,000 50,413,000 50,413,000 50,196,000 43,615,000 43,615,000 43,615,000 40,725,000 36,603,000 36,603,000 36,603,000 37,276,000 37,742,000 37,742,000 37,742,000 33,537,000 33,707,000 33,707,000 33,707,000 33,657,000 31,975,000 31,975,000 31,975,000 32,082,000 32,451,000 32,451,000 32,451,000 31,868,000 34,495,000 34,495,000 34,495,000 34,853,000 28,476,000 28,476,000 28,476,000 28,826,000 44,046,000 44,046,000 44,046,000 44,660,000 45,412,000 46,364,000  50,106,000 43,564,000 44,240,000  31,488,000 14,762,000   14,244,000 13,469,000 984,000  
        other assets
      142,941,000 120,966,000 120,966,000 120,966,000 117,933,000 115,508,000 115,508,000 115,508,000 107,251,000 116,488,000 116,488,000 116,488,000 108,722,000 112,595,000 112,595,000 112,595,000 111,364,000 109,047,000 109,047,000 109,047,000 89,804,000 83,990,000 83,990,000 83,990,000 81,596,000 56,518,000 56,518,000 56,518,000 56,470,000 55,256,000 55,256,000 55,256,000 55,921,000 40,072,000 40,072,000 40,072,000 38,812,000 30,715,000 30,715,000 30,715,000 62,601,000 63,870,000 63,870,000 63,870,000 50,497,000 48,255,000 48,255,000 48,255,000 25,475,000 23,722,000 23,722,000 23,722,000 23,712,000 35,228,000 35,228,000 35,228,000 33,713,000 20,614,000 20,614,000 20,614,000 24,292,000 16,482,000 16,482,000 16,482,000 18,506,000 16,707,000 16,707,000 16,707,000 11,225,000 9,092,000 9,092,000 9,092,000 11,083,000 10,031,000 10,031,000 10,031,000 4,427,000 2,021,000 2,021,000 2,021,000 1,174,000 881,000 1,164,000 1,014,000 1,055,000 6,332,000 867,000 1,035,000 1,588,000 440,000 416,000 665,000 2,644,000 3,724,000 3,772,000  
        total assets
      2,554,431,000 2,241,257,000 2,241,257,000 2,241,257,000 2,080,997,000 1,936,008,000 1,936,008,000 1,936,008,000 1,831,075,000 1,555,686,000 1,555,686,000 1,555,686,000 1,483,303,000 1,443,150,000 1,443,150,000 1,443,150,000 1,459,091,000 1,384,367,000 1,384,367,000 1,384,367,000 1,325,960,000 1,268,541,000 1,268,541,000 1,268,541,000 1,286,594,000 1,264,864,000 1,264,864,000 1,264,864,000 1,284,115,000 1,255,691,000 1,255,691,000 1,255,691,000 1,396,031,000 1,230,087,000 1,230,087,000 1,230,087,000 1,235,737,000 991,723,000 991,723,000 991,723,000 1,075,302,000 979,674,000 979,674,000 979,674,000 1,005,930,000 1,024,186,000 1,024,186,000 1,024,186,000 939,747,000 919,796,000 919,796,000 919,796,000 855,602,000 749,896,000 749,896,000 749,896,000 721,741,000 584,916,000 584,916,000 584,916,000 552,295,000 513,114,000 513,114,000 513,114,000 493,987,000 474,828,000 474,828,000 474,828,000 478,871,000 507,641,000 507,641,000 507,641,000 498,542,000 451,483,000 451,483,000 451,483,000 432,789,000 403,073,000   377,394,000                
        liabilities and stockholders’ equity
                                                                                                      
        current liabilities:
                                                                                                      
        bank lines of credit
       178,000,000 178,000,000 178,000,000 156,000,000 384,000,000 384,000,000 384,000,000 349,000,000 215,000,000 215,000,000 215,000,000 215,000,000 60,000,000 60,000,000 60,000,000 73,000,000     59,000,000 59,000,000 59,000,000 95,000,000 88,000,000 88,000,000 88,000,000 124,000,000 113,000,000 113,000,000 113,000,000 228,000,000 103,000,000 103,000,000 103,000,000 93,000,000 125,000,000 125,000,000 125,000,000 125,000,000    6,000,000 24,000,000 24,000,000 24,000,000 22,000,000 59,000,000 59,000,000 59,000,000 55,000,000             4,000,000 4,000,000 4,000,000 9,000,000 18,657,000 18,657,000 18,657,000 23,600,000 16,775,000 16,775,000 16,775,000 16,358,000 10,857,000 10,857,000 10,857,000 3,886,000 2,050,000 26,448,000 15,752,000 7,550,000 141,000 432,000 723,000 390,000 151,000   29,000 138,000 476,000  
        current portion of long-term debt
      3,791,000 8,130,000 8,130,000 8,130,000 8,145,000 8,167,000 8,167,000 8,167,000 8,212,000 8,076,000 8,076,000 8,076,000 8,080,000 244,575,000 244,575,000 244,575,000 249,315,000 846,000 846,000 846,000 925,000 926,000 926,000 926,000 903,000 804,000 804,000 804,000 1,702,000 2,262,000 2,262,000 2,262,000 2,252,000 2,396,000 2,396,000 2,396,000 2,410,000 2,759,000 2,759,000 2,759,000 2,759,000 2,801,000 2,801,000 2,801,000 2,814,000 2,819,000 2,819,000 2,819,000 2,779,000 1,797,000 1,797,000 1,797,000   215,000 215,000     221,000 12,743,000 12,743,000 12,743,000 9,670,000 8,557,000 8,557,000 8,557,000 8,015,000 6,593,000 6,593,000 6,593,000 5,562,000 5,744,000 5,744,000 5,744,000 5,578,000 1,251,000 1,251,000 1,251,000 788,000 785,000 871,000 499,000 261,000 751,000 1,143,000 1,798,000 2,455,000 2,625,000 2,625,000 2,625,000 2,625,000 2,625,000 2,625,000 2,625,000 
        accounts payable
      200,882,000 205,181,000 205,181,000 205,181,000 173,078,000 191,149,000 191,149,000 191,149,000 172,115,000 139,011,000 139,011,000 139,011,000 127,255,000 125,204,000 125,204,000 125,204,000 129,812,000 141,263,000 141,263,000 141,263,000 122,719,000 84,940,000 84,940,000 84,940,000 103,797,000 93,500,000 93,500,000 93,500,000 89,891,000 106,892,000 106,892,000 106,892,000 101,571,000 76,121,000 76,121,000 76,121,000 80,279,000 69,490,000 69,490,000 69,490,000 84,655,000 61,932,000 61,932,000 61,932,000 91,125,000 74,460,000 74,460,000 74,460,000 73,808,000 97,050,000 97,050,000 97,050,000 81,817,000 56,422,000 56,422,000 56,422,000 64,081,000 66,462,000 66,462,000 66,462,000 76,076,000 49,673,000 49,673,000 49,673,000 40,347,000 54,980,000 54,980,000 54,980,000 76,930,000 75,320,000 75,320,000 75,320,000 73,851,000 60,524,000 60,524,000 60,524,000 57,102,000 54,282,000 54,282,000 54,282,000 44,864,000 41,748,000 45,361,000 41,123,000 43,206,000 37,546,000 25,860,000 33,171,000 30,561,000 19,395,000 13,100,000 14,524,000 20,736,000 15,360,000 14,950,000 13,379,000 
        accrued payroll and related expenses
      51,003,000 49,535,000 49,535,000 49,535,000 45,771,000 46,732,000 46,732,000 46,732,000 43,554,000 51,243,000 51,243,000 51,243,000 48,287,000 46,379,000 46,379,000 46,379,000 40,469,000 50,816,000 50,816,000 50,816,000 40,860,000 46,127,000 46,127,000 46,127,000 37,577,000 43,521,000 43,521,000 43,521,000 36,053,000 40,171,000 40,171,000 40,171,000 35,248,000 34,621,000 34,621,000 34,621,000 30,681,000 29,203,000 29,203,000 29,203,000 29,818,000 33,169,000 33,169,000 33,169,000 32,134,000 32,997,000 32,997,000 32,997,000 31,869,000 28,503,000 28,503,000 28,503,000   24,749,000 24,749,000   24,417,000 24,417,000   23,953,000 23,953,000    22,416,000    20,896,000    15,937,000 14,808,000 14,244,000 14,244,000 14,244,000 13,670,000 14,259,000 13,855,000 13,487,000 12,414,000 11,497,000 13,917,000 13,006,000 10,333,000 4,900,000 4,780,000 5,122,000 5,457,000 4,802,000 4,373,000 3,784,000 
        advances from customers
      59,998,000 68,184,000 68,184,000 68,184,000 62,926,000 53,431,000 53,431,000 53,431,000 65,888,000 21,250,000 21,250,000 21,250,000 33,841,000 19,917,000 19,917,000 19,917,000 45,914,000 38,463,000 38,463,000 38,463,000 48,132,000 28,155,000 28,155,000 28,155,000 32,968,000 43,227,000 43,227,000 43,227,000 60,016,000 55,761,000 55,761,000 55,761,000 70,115,000 37,934,000 37,934,000 37,934,000 44,064,000 55,408,000 55,408,000 55,408,000 59,918,000 41,389,000 41,389,000 41,389,000 48,320,000 38,493,000 38,493,000 38,493,000 39,864,000 37,432,000 37,432,000 37,432,000 32,444,000 22,677,000 22,677,000 22,677,000 22,716,000 25,191,000 25,191,000 25,191,000 20,648,000 25,325,000 25,325,000 25,325,000 29,380,000 12,863,000 12,863,000 12,863,000 8,169,000 6,746,000 6,746,000 6,746,000 5,239,000 16,734,000 16,734,000 16,734,000 7,416,000 2,961,000 2,961,000 2,961,000 9,537,000 6,466,000 2,835,000 2,565,000 8,374,000 6,405,000 9,883,000 14,331,000 7,482,000 4,917,000 4,541,000 6,648,000 12,280,000 9,487,000 7,783,000 4,484,000 
        deferred revenue
      89,358,000 77,788,000 77,788,000 77,788,000                                 25,472,000 29,978,000 29,978,000 29,978,000 34,796,000 47,787,000 47,787,000 47,787,000 48,997,000 60,677,000 60,677,000 60,677,000 62,940,000 18,131,000 18,131,000 18,131,000 16,748,000 20,194,000 20,194,000 20,194,000 13,290,000 15,956,000 15,956,000 15,956,000 9,760,000 7,698,000 7,698,000 7,698,000 7,563,000 8,880,000 8,880,000 8,880,000 7,615,000 7,414,000 7,414,000 7,414,000 7,199,000 7,548,000 7,548,000 7,548,000 8,306,000 9,314,000 9,314,000 9,314,000 6,381,000 7,498,000 6,327,000 6,419,000             
        other accrued expenses and current liabilities
      124,139,000 110,120,000 110,120,000 110,120,000 158,037,000 131,158,000 131,158,000 131,158,000 122,913,000 137,114,000 137,114,000 137,114,000 117,950,000 117,879,000 117,879,000 117,879,000 107,326,000 113,379,000 113,379,000 113,379,000 113,433,000 110,953,000 110,953,000 110,953,000 105,717,000 112,956,000 112,956,000 112,956,000 113,838,000 125,236,000 125,236,000 125,236,000 121,295,000 92,062,000 92,062,000 92,062,000 72,320,000 55,997,000 55,997,000 55,997,000 61,442,000 52,593,000 52,593,000 52,593,000 53,293,000 55,977,000 55,977,000 55,977,000 21,635,000 26,610,000 26,610,000 26,610,000 28,157,000 18,830,000 18,830,000 18,830,000 16,634,000 14,425,000 14,425,000 14,425,000 15,522,000 14,272,000 14,272,000 14,272,000 14,605,000 13,833,000 13,833,000 13,833,000 12,977,000 14,274,000 14,274,000 14,274,000 17,207,000 23,225,000 21,282,000 23,225,000 17,821,000 18,824,000 18,824,000 18,824,000 14,481,000 15,252,000 22,093,000 22,669,000 20,458,000 21,732,000 20,824,000 21,339,000 16,408,000 4,705,000 5,442,000 5,559,000 8,370,000 10,666,000 5,129,000 5,201,000 
        total current liabilities
      529,171,000 696,938,000 696,938,000 696,938,000 603,957,000 814,637,000 814,637,000 814,637,000 761,682,000 571,694,000 571,694,000 571,694,000 550,413,000 613,954,000 613,954,000 613,954,000 645,836,000 344,767,000 344,767,000 344,767,000 326,069,000 330,101,000 330,101,000 330,101,000 375,962,000 382,008,000 382,008,000 382,008,000 425,500,000 443,322,000 443,322,000 443,322,000 558,481,000 346,134,000 346,134,000 346,134,000 348,226,000 367,835,000 367,835,000 367,835,000 405,983,000 249,281,000 249,281,000 249,281,000 285,414,000 309,979,000 309,979,000 309,979,000 266,251,000 281,413,000 281,413,000 281,413,000 255,694,000 160,649,000 160,649,000 160,649,000 154,993,000 160,981,000 160,981,000 160,981,000 156,636,000 144,594,000 144,594,000 144,594,000 131,500,000 135,635,000 135,635,000 135,635,000 153,917,000 161,497,000 161,497,000 161,497,000 163,410,000 155,898,000 155,898,000 155,898,000 137,158,000 121,143,000 121,143,000 121,568,000 102,964,000 101,216,000 127,756,000 113,275,000 102,858,000 90,082,000 84,760,000 97,491,000 77,920,000 45,175,000 40,044,000 45,096,000 57,288,000 50,720,000 42,675,000 34,498,000 
        long-term debt
      998,748,000 463,504,000 463,504,000 463,504,000 465,051,000 129,383,000 129,383,000 129,383,000 131,214,000 136,491,000 136,491,000 136,491,000 138,190,000 48,668,000 48,668,000 48,668,000 48,708,000 276,421,000 276,421,000 276,421,000 273,997,000 267,072,000 267,072,000 267,072,000 264,777,000 257,752,000 257,752,000 257,752,000 255,411,000 248,980,000 248,980,000 248,980,000 247,029,000 241,750,000 241,750,000 241,750,000 240,018,000 6,054,000 6,054,000 6,054,000 6,770,000 8,556,000 8,556,000 8,556,000 9,028,000 10,436,000 10,436,000 10,436,000 10,847,000 10,673,000 10,673,000 10,673,000 11,099,000 2,467,000 2,467,000 2,467,000 2,579,000 2,756,000 2,756,000 2,756,000 2,814,000 23,366,000 23,366,000 23,366,000 28,392,000 39,803,000 39,803,000 39,803,000 41,448,000 49,091,000 49,091,000 49,091,000 46,425,000 25,709,000 25,709,000 25,709,000 26,965,000 5,483,000 5,483,000 5,483,000 5,329,000 5,449,000 5,721,000 4,852,000 4,919,000 5,066,000 32,000 32,000 35,000 524,000 1,143,000 1,838,000 2,481,000 3,143,000 3,802,000 4,463,000 
        deferred income taxes
      1,442,000 3,334,000 3,334,000 3,334,000    3,287,000 7,293,000 6,571,000 6,571,000 6,571,000 11,794,000 11,112,000 11,112,000 11,112,000 4,658,000 7,157,000 7,157,000 7,157,000 1,507,000 5,846,000 5,846,000 5,846,000 6,881,000 7,979,000 7,979,000 7,979,000 15,015,000 15,002,000 15,002,000 15,002,000 2,334,000 34,897,000 34,897,000 34,897,000 16,975,000 43,474,000 43,474,000 43,474,000 68,887,000 65,435,000 65,435,000 65,435,000 68,280,000 73,161,000 73,161,000 73,161,000 57,163,000    19,026,000 19,205,000 19,205,000 19,205,000 17,620,000 17,156,000 17,156,000 17,156,000 16,446,000 17,262,000 17,262,000 17,262,000 21,623,000 20,128,000 20,128,000 20,128,000 18,999,000 19,313,000 19,313,000 19,313,000 18,418,000 20,265,000 20,265,000 20,265,000 24,475,000 13,752,000 13,752,000 13,752,000 12,660,000 12,388,000 13,400,000 10,537,000 6,749,000 6,714,000 6,678,000 6,611,000 6,624,000 5,797,000 5,967,000 5,473,000 2,463,000 2,428,000 2,399,000 2,026,000 
        other long-term liabilities
      130,755,000 126,397,000 126,397,000 126,397,000 132,664,000 128,505,000 128,505,000 125,218,000 117,473,000 114,765,000 114,765,000 114,765,000 115,989,000 130,992,000 130,992,000 130,992,000 141,395,000 116,202,000 116,202,000 116,202,000 108,494,000 93,370,000 93,370,000 93,370,000 86,698,000 65,398,000 65,398,000 65,398,000 62,381,000 58,951,000 58,951,000 58,951,000 66,493,000 52,309,000 52,309,000 52,309,000 64,581,000 47,828,000 47,828,000 47,828,000 61,543,000 74,623,000 49,623,000 49,623,000 54,696,000 48,397,000 48,397,000 48,397,000 47,489,000 74,259,000 74,259,000 74,259,000 48,858,000 52,661,000 52,661,000 52,661,000 45,570,000 36,379,000 36,379,000 36,379,000 35,327,000 31,444,000 31,444,000 31,444,000 28,930,000 23,390,000 23,390,000 22,310,000 18,630,000 17,804,000 17,804,000 17,804,000 16,560,000 8,675,000 4,582,000 2,746,000 4,955,000 2,606,000 2,606,000 2,606,000 933,000 514,000               
        total liabilities
      1,660,116,000 1,290,173,000 1,290,173,000 1,290,173,000 1,201,672,000 1,072,525,000 1,072,525,000 1,072,525,000 1,017,662,000 829,521,000 829,521,000 829,521,000 816,386,000 804,726,000 804,726,000 804,726,000 840,597,000 744,547,000 744,547,000 744,547,000 710,067,000 696,389,000 696,389,000 696,389,000 734,318,000 713,137,000 713,137,000 713,137,000 758,307,000 766,255,000 766,255,000 766,255,000 913,645,000 660,874,000 660,874,000 660,874,000 681,425,000 450,877,000 450,877,000 450,877,000 543,183,000 397,895,000 397,895,000 397,895,000 448,668,000 491,973,000 491,973,000 491,973,000 438,000,000 441,345,000 441,345,000 441,345,000 396,901,000 315,777,000 315,777,000 315,777,000 303,142,000 200,116,000 200,116,000 200,116,000 194,777,000 199,404,000 199,404,000 199,404,000 188,822,000 198,828,000 198,828,000 197,748,000 213,995,000 228,392,000 228,392,000 228,392,000 226,395,000 195,456,000 195,456,000 195,456,000 184,472,000 144,395,000 144,395,000 144,820,000 126,222,000 124,152,000 139,591,000 123,493,000 115,165,000 102,340,000 91,600,000 104,319,000 81,628,000 49,291,000 43,555,000 49,139,000 60,531,000 54,569,000 47,145,000 39,624,000 
        commitments and contingencies
                                                                                                      
        stockholders’ equity:
                                                                                                      
        preferred stock, 0.001 par value—10,000,000 shares authorized; no shares issued or outstanding
                                                                                                      
        common stock
      13,028,000 29,758,000 29,758,000 29,758,000 19,825,000 24,289,000 24,289,000 24,289,000 16,667,000 9,835,000 9,835,000 9,835,000 17,000 17,000 17,000 17,000 17,000 105,724,000 105,724,000 105,724,000 110,744,000 122,553,000 122,553,000 122,553,000 116,872,000 168,913,000 168,913,000 168,913,000 160,384,000 169,475,000 169,475,000 169,475,000 166,633,000 222,529,000 222,529,000 222,529,000 216,220,000 219,114,000 219,114,000 219,114,000 212,371,000 279,212,000 279,212,000 279,212,000 278,365,000 287,434,000 287,434,000 287,434,000     278,109,000 282,756,000 282,756,000 282,756,000 279,029,000 272,552,000 272,552,000 272,552,000 258,676,000 244,026,000 244,026,000 244,026,000 240,923,000 225,297,000 225,297,000 225,297,000 224,538,000 224,581,000 224,581,000 224,581,000 222,032,000 207,260,000 207,260,000 207,260,000 203,450,000 193,698,000 193,698,000 193,698,000 190,668,000 187,559,000 171,294,000  170,348,000 169,382,000 168,853,000 170,129,000 136,777,000 136,531,000 136,184,000 135,884,000 135,057,000   108,141,000 
        retained earnings
      902,187,000 942,254,000 942,254,000 942,254,000 889,506,000 861,230,000 861,230,000 861,230,000 816,551,000 735,957,000 735,957,000 735,957,000 693,576,000 663,869,000 663,869,000 663,869,000 637,734,000 548,842,000 548,842,000 548,842,000 522,948,000 474,793,000 474,793,000 474,793,000 460,828,000 399,541,000 399,541,000 399,541,000 382,880,000 334,745,000 334,745,000 334,745,000 329,631,000 363,872,000 363,872,000 363,872,000 358,517,000 338,988,000 338,988,000 338,988,000 333,087,000 312,831,000 312,831,000 312,831,000 290,398,000 247,680,000 247,680,000 247,680,000 225,554,000 199,786,000 199,786,000 199,786,000 187,940,000 155,651,000 155,651,000 155,651,000 139,740,000 110,103,000 110,103,000 110,103,000 98,055,000 76,681,000 76,681,000 76,681,000 68,696,000 53,124,000 53,124,000 53,124,000 48,839,000 41,972,000 41,972,000 41,972,000 36,387,000 31,450,000 31,450,000 31,450,000 27,019,000 50,208,000 50,208,000 50,208,000 49,474,000 48,462,000 48,377,000 52,566,000 55,801,000 58,729,000 56,271,000 54,961,000 52,773,000 49,334,000 46,288,000 45,005,000 39,780,000 36,174,000 32,413,000 29,212,000 
        accumulated other comprehensive loss
      -20,900,000 -20,928,000 -20,928,000 -20,928,000 -30,006,000 -22,036,000 -22,036,000 -22,036,000 -19,805,000 -19,627,000 -19,627,000 -19,627,000 -26,676,000 -25,462,000 -25,462,000 -25,462,000 -19,257,000 -14,746,000 -14,746,000 -14,746,000 -17,799,000 -25,194,000 -25,194,000 -25,194,000 -25,424,000 -16,727,000 -16,727,000 -16,727,000                -10,264,000                    -6,997,000                            -490,000 -1,001,000 -963,000 -1,866,000 -1,619,000 
        total stockholders’ equity
      894,315,000 951,084,000 951,084,000 951,084,000 879,325,000 863,483,000 863,483,000 863,483,000 813,413,000 726,165,000 726,165,000 726,165,000 666,917,000 638,424,000 638,424,000 638,424,000 618,494,000 639,820,000 639,820,000 639,820,000 615,893,000 572,152,000 572,152,000 572,152,000 552,276,000 551,727,000 551,727,000 551,727,000 525,808,000 489,436,000 489,436,000 489,436,000 482,386,000 569,213,000 569,213,000 569,213,000 554,312,000 540,846,000 540,846,000 540,846,000 532,119,000 581,779,000 581,779,000 581,779,000 557,262,000 532,213,000 532,213,000 532,213,000 501,747,000 478,451,000 478,451,000 478,451,000 458,701,000 434,119,000 434,119,000 434,119,000 418,599,000 384,800,000 384,800,000 384,800,000     305,165,000                                
        total liabilities and stockholders’ equity
      2,554,431,000 2,241,257,000 2,241,257,000 2,241,257,000 2,080,997,000 1,936,008,000 1,936,008,000 1,936,008,000 1,831,075,000 1,555,686,000 1,555,686,000 1,555,686,000 1,483,303,000 1,443,150,000 1,443,150,000 1,443,150,000 1,459,091,000 1,384,367,000 1,384,367,000 1,384,367,000 1,325,960,000 1,268,541,000 1,268,541,000 1,268,541,000 1,286,594,000 1,264,864,000 1,264,864,000 1,264,864,000 1,284,115,000 1,255,691,000 1,255,691,000 1,255,691,000 1,396,031,000 1,230,087,000 1,230,087,000 1,230,087,000 1,235,737,000 991,723,000 991,723,000 991,723,000 1,075,302,000 979,674,000 979,674,000 979,674,000 1,005,930,000 1,024,186,000 1,024,186,000 1,024,186,000 939,747,000 919,796,000 919,796,000 919,796,000 855,602,000 749,896,000 749,896,000 749,896,000 721,741,000 584,916,000       493,987,000                                
        preferred stock, 0.001 par value— 10,000,000 shares authorized; no shares issued or outstanding
                                                                                                      
        stockholders' equity:
                                                                                                      
        ​
                                                                                                      
        preferred stock, 0.001 par value —10,000,000 shares authorized; no shares issued or outstanding
                                                                                                      
        preferred stock, 0.001 par value —authorized, 10,000,000 shares; no shares issued or outstanding
                                                                                                      
        preferred stock, 0.001 par value—authorized, 10,000,000 shares; no shares issued or outstanding
                                                                                                      
        deferred taxes
                                              43,466,000 44,887,000 44,887,000 44,887,000 61,968,000 73,510,000 73,510,000 73,510,000                                                 
        income taxes payable
                                              7,595,000 9,610,000 9,610,000 9,610,000 2,731,000 20,556,000 20,556,000 20,556,000                                425,000  823,000 1,111,000 1,608,000 1,709,000 3,099,000 3,776,000 3,075,000 3,136,000 3,627,000 2,959,000 3,192,000 5,533,000 4,922,000 4,913,000 2,861,000 
        preferred stock, 0.001 par value...
                                                                                                      
        preferred stock, 0.001 par value — authorized, 10,000,000 shares; no shares issued or outstanding
                                                                                                      
        accrued warranties
                                                      11,356,000 12,890,000 12,890,000 12,890,000 13,963,000 17,562,000 17,562,000 17,562,000 16,137,000 14,530,000 14,530,000 14,530,000 14,056,000 10,930,000 10,930,000 10,930,000 9,942,000 10,106,000 10,106,000 10,106,000 10,017,000 11,597,000 11,597,000 11,597,000 9,217,000 7,443,000 7,443,000 7,443,000 7,239,000 7,224,000 7,224,000 7,224,000 6,906,000 6,761,000 6,291,000 6,641,000 8,313,000 8,680,000 8,757,000 9,190,000 5,601,000 2,410,000 2,832,000 2,782,000 2,258,000 2,720,000 2,426,000 2,164,000 
        common stock, 0.001 par value...
                                                      279,994,000 285,001,000 285,001,000 285,001,000                                             
        current portion of long term debt
                                                          1,795,000 215,000                                           
        accrued payroll and employee benefits
                                                          25,770,000 24,749,000   22,135,000 24,417,000   20,353,000 23,953,000   19,993,000 22,416,000 22,416,000  21,194,000 20,896,000 20,896,000  21,535,000 17,905,000 17,880,000                      
        accumulated other comprehensive income
                                                               2,145,000 2,145,000 2,145,000 787,000       -2,421,000  11,468,000 11,468,000 11,468,000 12,561,000 8,502,000 8,502,000 8,502,000 8,125,000 5,041,000 5,041,000 5,041,000 2,282,000 562,000 1,846,000 1,655,000 3,949,000 5,051,000 2,708,000 2,392,000 2,061,000 1,989,000 483,000      
        other receivables
                                                               5,012,000 5,012,000 5,012,000 4,042,000 2,859,000 2,859,000 2,859,000 4,445,000 2,950,000 2,950,000 2,950,000 3,495,000 3,258,000 3,258,000 3,258,000 5,487,000 5,770,000 5,770,000 5,770,000 4,811,000 4,495,000 9,701,000 9,701,000 8,952,000 7,637,000 5,821,000 5,345,000 5,303,000 5,698,000 6,329,000 7,480,000 6,499,000 2,873,000 1,732,000 2,740,000 3,214,000 4,187,000 4,847,000 3,103,000 
        commitment and contingencies
                                                                                                      
        preferred stock, no par value—authorized, 10,000,000 shares; no shares issued or outstanding
                                                                                                      
        total liabilities and equity
                                                                584,916,000 584,916,000   513,114,000    474,828,000                              
        liabilities and shareholders’ equity
                                                                                                      
        shareholders’ equity:
                                                                                                      
        total shareholders’ equity
                                                                  357,518,000 313,710,000 313,710,000 313,710,000  276,000,000 276,000,000 276,000,000 263,661,000 278,021,000 278,021,000 278,021,000 270,980,000 247,212,000 247,212,000 247,212,000 238,594,000 248,947,000 248,947,000 248,947,000 242,424,000 236,583,000 221,517,000 223,627,000 230,098,000 233,162,000 227,832,000 227,482,000 191,611,000  182,955,000 180,399,000 173,836,000 169,863,000 138,836,000 135,734,000 
        total liabilities and shareholders’ equity
                                                                  552,295,000 513,114,000  513,114,000  474,828,000  474,828,000 478,871,000 507,641,000 507,641,000 507,641,000 498,542,000 451,483,000 451,483,000 451,483,000 432,789,000 403,073,000                   
        minority interest
                                                                         1,080,000 1,215,000 1,228,000 1,228,000 1,228,000 1,167,000 8,815,000 8,815,000 8,815,000 9,723,000 9,731,000 9,731,000 9,731,000 8,748,000 8,718,000      69,000 1,152,000 1,484,000 292,000 235,000 164,000 122,000 84,000 79,000 
        preferred stock, no par value-authorized, 10,000,000 shares; no shares issued or outstanding
                                                                                                      
        deferred rent
                                                                               5,174,000 5,174,000 5,174,000 5,240,000 5,379,000 5,379,000 5,379,000 5,475,000 5,448,000               
        accrued pension
                                                                                 1,836,000 2,006,000 2,280,000 2,280,000 2,280,000 2,465,000 2,448,000 2,566,000 1,819,000 1,881,000 1,670,000 1,602,000 1,529,000 1,892,000 1,478,000  1,340,000    448,000 
        preferred stock, no par value – authorized, 10,000,000 shares; no shares issued or outstanding
                                                                                                      
        marketable securities, available-for-sale
                                                                                   100,000 100,000 100,000  74,000 852,000 816,000       4,649,000 3,973,000 20,269,000    
        income taxes receivable
                                                                                   2,119,000 2,119,000 2,544,000 5,687,000 4,853,000 5,653,000  3,265,000           175,000 
        investments
                                                                                   1,789,000 1,789,000 1,789,000 2,250,000 2,075,000 1,993,000 1,366,000 1,987,000 1,580,000 1,553,000 1,475,000 2,094,000 2,542,000 2,561,000 1,697,000  513,000 410,000 539,000 
        total
                                                                                    403,073,000 403,498,000 377,394,000 369,453,000 361,108,000 347,120,000 345,263,000 335,502,000 319,432,000 331,801,000 273,239,000 237,145,000 226,510,000 229,538,000 234,367,000 224,432,000 185,981,000 175,358,000 
        preferred stock, no par value—authorized, 10,000,000 shares; no shares issued or outstanding at june 30, 2006 and september 30, 2006
                                                                                                      
        preferred stock, no par value—authorized, 10,000,000 shares; no shares issued or outstanding at june 30, 2005 and 2006
                                                                                                      
        marketable securities, available for sale
                                                                                      111,000                
        current portion of capital lease obligation
                                                                                      252,000 252,000   252,000 188,000           
        long-term capital lease obligation
                                                                                      85,000 119,000    311,000           
        shareholders’ equity
                                                                                                      
        preferred stock, no par value; authorized, 10,000,000 shares; none issued and outstanding at march 31, 2006 and june 30, 2005, respectively
                                                                                                      
        inventory
                                                                                       110,235,000 109,888,000 107,441,000 110,252,000 99,032,000 99,467,000 97,174,000 87,938,000 49,440,000 44,403,000 42,415,000 49,201,000 47,112,000 43,042,000 36,512,000 
        prepaid expenses
                                                                                       4,340,000 4,571,000 4,165,000 3,784,000 3,441,000 3,595,000 3,580,000 3,733,000 3,042,000 2,122,000 1,264,000 1,808,000 1,430,000 1,021,000 1,008,000 
        sales return allowance
                                                                                       3,123,000               
        preferred stock, no par value; authorized, 10,000,000 shares; none issued and outstanding at december 31, 2005 and june 30, 2005, respectively
                                                                                                      
        provision for losses on long-term contract
                                                                                        364,000  321,000   858,000 1,554,000 2,445,000 3,765,000 4,644,000     
        preferred stock, no par value; authorized, 10,000,000 shares; none issued and outstanding at september 30, 2005 and june 30, 2005
                                                                                                      
        income tax receivable
                                                                                         5,519,000             
        property and equipment—net
                                                                                         30,974,000    18,775,000   12,877,000 14,115,000    12,901,000 
        intangible assets—net
                                                                                         47,287,000    44,914,000   14,190,000 14,055,000     
        provision for losses on long-term contracts
                                                                                         321,000  43,000 168,000          
        preferred stock, no par value—authorized, 10,000,000 shares; no shares issued or outstanding at june 30, 2004 and 2005
                                                                                                      
        16,213,428 and 16,193,239 shares at june 30, 2004 and 2005, respectively
                                                                                         169,406,000             
        long term capital lease obligation
                                                                                          300,000            
        contingencies
                                                                                                      
        preferred stock, no par value; authorized, 10,000,000 shares; none issued and outstanding at march 31, 2005 and june 30, 2004, respectively
                                                                                                      
        prepaid income taxes
                                                                                           838,000 1,526,000  524,000 361,000   1,614,000 177,000 795,000  
        preferred stock, no par value; authorized, 10,000,000 shares; none issued and outstanding at december 31, 2004 and june 30, 2004, respectively
                                                                                                      
        preferred stock, no par value; authorized, 10,000,000 shares; none issued and outstanding at september 30, 2004 and june 30, 2004, respectively
                                                                                                      
        prepaid income tax
                                                                                             391,000         
        preferred stock, no par value—authorized, 10,000,000 shares; no shares issued or outstanding at june 30, 2003 and 2004
                                                                                                      
        marketable securities, available-for sale
                                                                                               3,497,000       
        preferred stock, no par value; authorized, 10,000,000 shares; none issued and outstanding at march 31, 2004 and june 30, 2003
                                                                                                      
        shareholders' equity
                                                                                                      
        preferred stock, no par value; authorized, 10,000,000 shares; none issued and outstanding at december 31, 2003 and june 30, 2003, respectively
                                                                                                      
        total shareholders' equity
                                                                                               187,854,000       
        other long term liabilities
                                                                                                2,076,000  462,000 448,000 448,000  
        preferred stock, no par value—authorized, 10,000,000 shares; no shares issued or outstanding at september 30, 2003 or june 30, 2003.
                                                                                                      
        current portion of note receivable
                                                                                                   350,000 350,000 350,000 
        note receivable
                                                                                                   250,000 450,000 450,000 
        preferred stock, no par value—authorized, 10,000,000 shares; no shares issued or outstanding at june 30, 2002 and 2003
                                                                                                      
        preferred stock, no par value; authorized, 10,000,000 shares; none issued and outstanding at march 31, 2003 and june 30, 2002, respectively
                                                                                                      
        intangible and other assets—net
                                                                                                     8,264,000 
        preferred stock, no par value—authorized, 10,000,000 shares; no shares issued or outstanding at june 30, 2001 and 2002
                                                                                                      
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-03-31 2018-12-31 2018-09-30 2018-03-31 2017-12-31 2017-09-30 2017-03-31 2016-12-31 2016-09-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-03-31 2013-12-31 2013-09-30 2013-03-31 2012-12-31 2012-09-30 2012-03-31 2011-12-31 2011-09-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 2004-12-31 2004-09-30 2004-06-30 2004-03-31 2003-12-31 2003-09-30 2003-06-30 2003-03-31 2002-12-31 2002-09-30 
                                                                                               
          cash flows from operating activities
                                                                                               
          net income
        40,216,000 38,699,000 20,556,000 52,748,000 41,134,000 37,819,000 17,936,000 44,679,000 34,043,000 36,553,000 12,879,000 42,381,000 21,808,000 16,354,000 11,235,000 33,763,000 42,735,000 19,797,000 19,052,000 25,894,000 18,773,000 20,038,000 9,344,000 13,965,000 19,558,000 20,986,000 20,743,000 19,626,000 19,107,000 9,402,000 2,553,000 -46,951,000 10,157,000 14,019,000 4,833,000 677,000 9,343,000 108,000 10,805,000 22,433,000 13,228,000 18,241,000 11,249,000 4,801,000 14,573,000 6,394,000 13,529,000 12,421,000 6,339,000 12,575,000 12,301,000 4,761,000 8,766,000 9,218,000 3,392,000 7,983,000 6,112,000 6,952,000 2,510,000 4,285,000 2,573,000 4,162,000 132,000 5,538,000 6,909,000       734,000 1,011,000 86,000 -4,189,000 -3,235,000 -2,927,000 2,457,000 1,310,000 2,188,000 3,441,000 3,044,000 1,283,000 5,225,000 3,607,000 3,760,000 3,201,000 
          adjustments to reconcile net income to net cash from operating activities, net of effects from acquisitions:
                                                                                               
          depreciation and amortization
        9,522,000 9,606,000 10,260,000 10,916,000 10,567,000 10,647,000 11,450,000 11,724,000 10,629,000 10,288,000 9,568,000 9,694,000 9,676,000 9,602,000 9,541,000 9,699,000 9,790,000 9,493,000 9,697,000 12,422,000 10,271,000 11,160,000 10,002,000 11,951,000 10,846,000 13,422,000 13,539,000 14,118,000 14,136,000 14,147,000 13,712,000 21,281,000 20,375,000 16,867,000 16,749,000 15,426,000 14,494,000 13,987,000 14,063,000 13,528,000 13,366,000 14,341,000 17,741,000 13,607,000 13,544,000 12,873,000 7,063,000 5,902,000 4,907,000 5,158,000 4,909,000 4,832,000 4,613,000 4,738,000 4,468,000 5,353,000 4,718,000 4,309,000 4,181,000 4,985,000 4,192,000 4,269,000 4,359,000 4,703,000 5,133,000 4,959,000 4,547,000 3,868,000 4,053,000 4,981,000 4,926,000 4,205,000 4,148,000 2,563,000 3,274,000 4,241,000 1,910,000 2,281,000 2,204,000 1,711,000 1,579,000 1,238,000 1,180,000 1,332,000 1,328,000 769,000 860,000 
          stock-based compensation expense
        6,585,000 7,051,000 6,199,000  7,563,000 8,509,000 6,422,000  7,069,000 7,328,000 7,089,000  7,112,000 7,239,000 7,177,000  6,898,000 6,975,000 7,113,000  7,565,000 5,712,000 6,109,000  5,837,000 5,844,000 6,416,000                                                             
          provision for (recovery of) losses on accounts receivable
        2,131,000 -127,000 1,331,000 1,060,000 -1,282,000   3,515,000 -293,000      -1,675,000 -2,142,000 98,000                                  -78,000 305,000                                    
          deferred income taxes
        95,000 18,000 -9,100,000 385,000 479,000 -851,000 -13,609,000 281,000 -1,013,000 208,000 -4,920,000 -263,000 1,084,000 121,000 2,072,000 1,457,000 -91,000 82,000 1,796,000 -1,408,000 -52,000 96,000 -381,000 3,000 -50,000 -3,000    79,000 45,350,000 5,346,000       -10,332,000      72,000 -16,000 72,000 140,000    256,000 543,000 272,000       -525,000 -294,000 1,314,000 -3,751,000 1,040,000 -3,490,000 -9,437,000 1,883,000 -11,728,000 -3,400,000 -1,580,000 -277,000 1,001,000 -2,848,000 -3,194,000 -190,000 78,000 -62,000    -90,000 2,347,000 1,000 -1,914,000 173,000 
          amortization of debt discount and issuance costs
        1,021,000 713,000 450,000 434,000 449,000 446,000 354,000     196,000 298,000 348,000 349,000 348,000 2,479,000 2,447,000 2,430,000 2,400,000 2,399,000 2,338,000 2,338,000 2,308,000 2,264,000 2,249,000 2,220,000 2,164,000 2,164,000 2,098,000                                                       
          other
        203,000 790,000 -25,000 59,000 15,000 140,000 -21,000 84,000 -89,000 57,000 42,000 296,000 18,000 -71,000 7,000 -252,000 -1,185,000 43,000 68,000 108,000 -272,000 39,000 16,000 -2,600,000 1,901,000 938,000 -61,000 602,000 966,000 49,000 186,000 395,000 490,000 958,000 -30,000 258,000 181,000   -10,000 71,000 146,000 69,000 95,000 -27,000 128,000 56,000 130,000 1,000 19,000 15,000 13,000 44,000 81,000 45,000 169,000 40,000   47,000 83,000 12,000 12,000 -202,000 337,000 13,000 -24,000 171,000                    
          changes in operating assets and liabilities—net of business acquisitions:
                                                                                               
          accounts receivable
        -42,762,000 3,328,000 17,038,000 -136,635,000 36,158,000 -34,057,000 -30,187,000 -174,650,000 -130,447,000 -44,410,000 55,868,000 -79,336,000 26,596,000 -7,972,000 -5,376,000 -24,323,000 5,066,000 6,397,000 -850,000 -35,669,000 3,525,000 -11,167,000 14,356,000 -13,126,000 -4,490,000 -12,515,000 -6,940,000    -4,923,000 -4,178,000 16,232,000    2,076,000 5,899,000 13,467,000 -12,459,000 19,361,000 -29,703,000 30,159,000 21,564,000 40,476,000 6,305,000  6,473,000 11,190,000   5,553,000  -27,643,000 34,275,000     13,929,000 4,404,000 -1,800,000 14,288,000 -16,470,000 11,106,000 -14,273,000 4,510,000 -21,433,000 12,150,000 -5,986,000 -333,000 -19,673,000 502,000 -8,281,000 -4,222,000 2,145,000 -3,301,000 -5,942,000 1,644,000 -8,077,000 -9,709,000 -2,874,000 4,037,000 4,560,000 -5,419,000 2,998,000 1,382,000 
          inventories
        16,506,000 1,317,000 -47,412,000 31,833,000 2,642,000 10,285,000 -54,458,000 44,154,000 1,863,000 -21,274,000 -82,035,000 37,745,000 -10,543,000 2,649,000 -29,966,000 9,104,000 -11,519,000 -14,483,000 -27,764,000 -4,606,000 -18,011,000 -10,873,000 -14,278,000 -342,000 11,164,000 15,763,000 4,167,000       12,194,000 3,315,000 10,901,000             2,286,000       -2,181,000 2,192,000 10,800,000 9,087,000   -4,755,000 -9,228,000 3,264,000 -437,000 -14,353,000 -14,031,000 3,623,000 -857,000 11,415,000 -7,931,000 -3,265,000                
          prepaid expenses and other assets
        -6,040,000 5,791,000 -4,922,000 2,377,000 24,572,000 -1,327,000 -23,325,000 9,847,000 -11,045,000 -22,853,000 -7,605,000 -498,000 5,152,000 -1,489,000 -8,587,000 14,313,000 16,274,000 9,347,000 -17,611,000 -30,167,000 5,359,000 -12,999,000 3,377,000 6,526,000 554,000 -4,374,000 -13,272,000                   832,000                                          
          accounts payable
        -11,594,000 -4,284,000 11,970,000 31,018,000 -10,872,000 -7,309,000 -4,952,000 19,521,000 8,568,000 -1,486,000 25,851,000 8,622,000 -2,295,000 -15,571,000 20,000,000 -4,055,000 1,775,000 -12,367,000 -408,000 18,488,000 32,705,000 -2,950,000 7,358,000 -19,136,000 -2,496,000 5,145,000 7,594,000   9,177,000   6,586,000    6,285,000 -8,405,000 23,933,000 -29,329,000 -4,989,000 16,268,000 2,933,000    -12,593,000 9,821,000 28,055,000  17,252,000 5,163,000 976,000       -24,342,000 -9,758,000 20,517,000 -1,643,000 2,028,000 -12,140,000 15,043,000 8,974,000 2,332,000 -4,366,000 4,297,000 -514,000 6,902,000 3,330,000 -4,274,000 3,118,000 -2,216,000 3,242,000 11,405,000 -7,595,000 1,791,000 4,593,000 6,174,000 -1,447,000 -6,370,000 5,295,000 -481,000 1,350,000 
          accrued payroll and related expenses
        6,578,000 1,967,000 -4,349,000 2,244,000 6,256,000 -1,419,000 -7,811,000 3,145,000 -7,285,000 5,736,000 -6,606,000 2,565,000 18,677,000 -5,539,000 -10,987,000 7,839,000 3,062,000 680,000 -13,579,000 10,123,000 4,691,000 5,141,000 -9,469,000 9,860,000 -274,000 6,294,000 -11,675,000                             4,436,000    -365,000 569,000   -392,000 1,291,000   349,000 -114,000 213,000 328,000 390,000 -709,000 659,000 307,000 883,000 831,000 -2,522,000 1,155,000 1,318,000 1,395,000 83,000 -366,000 -359,000 662,000 -178,000 511,000 
          advances from customers
        -3,531,000 -15,795,000 11,119,000 5,035,000 -13,564,000 13,126,000 10,267,000 -12,402,000 25,578,000 7,457,000 10,770,000 -12,607,000 11,135,000 -7,305,000 10,133,000 -25,946,000 6,368,000 4,968,000 -3,813,000 -9,672,000 -25,782,000 32,477,000 12,773,000 -5,342,000 734,000 -17,253,000 6,673,000 -9,418,000 -4,733,000 18,409,000 5,747,000                   94,678,000 -1,246,000 5,421,000    -3,725,000 8,107,000 4,529,000 5,234,000 3,282,000 -1,481,000 -6,820,000 14,825,000 1,493,000 -1,167,000 -12,039,000 1,661,000 6,963,000 3,545,000 -1,432,000 2,378,000 -6,671,000 3,101,000 3,679,000 288,000 -2,116,000 1,272,000 -2,477,000 -6,279,000 3,957,000 -2,129,000 -1,601,000 -2,101,000 -5,677,000 2,174,000 1,695,000 3,290,000 
          deferred revenue
        -5,367,000 19,296,000 -3,733,000 -285,000 8,380,000 5,915,000 11,485,000  11,417,000 -1,170,000 -7,142,000   -6,517,000 19,231,000   -1,277,000 6,280,000    5,355,000                     15,821,000                1,302,000 379,000 978,000 1,337,000 655,000 -667,000 781,000 -789,000 -867,000 1,198,000 -1,051,000 -2,248,000 2,557,000 -872,000 1,600,000 -78,000             
          net cash from operating activities
        14,457,000 62,200,000 17,137,000 562,000 81,642,000 52,548,000 -37,160,000 -29,043,000 -52,074,000 -23,528,000 17,144,000 22,134,000 64,514,000 -9,078,000 17,242,000 21,995,000 38,367,000 14,465,000 -11,019,000 8,013,000 41,574,000 35,647,000 53,832,000    24,838,000 46,900,000   31,063,000 49,594,000 35,107,000 33,906,000      17,407,000 26,746,000 29,497,000 31,453,000 48,853,000 68,726,000 6,247,000 -5,569,000 20,439,000 42,377,000 73,698,000 2,490,000 9,994,000 5,172,000 9,878,000 9,596,000 12,291,000 16,471,000 12,878,000 10,510,000 4,386,000    9,231,000 4,671,000 -10,930,000 -3,644,000 5,952,000 4,402,000 1,076,000 -13,707,000 -779,000 -2,967,000 -1,439,000 -7,006,000 769,000 -9,772,000 5,748,000 -9,604,000 -6,750,000 -3,901,000 -693,000 929,000 5,897,000 5,618,000 5,290,000 4,751,000 
          capital expenditures
        -7,559,000 -6,685,000 -7,028,000 -6,119,000 -4,518,000 -5,490,000 -7,705,000 -8,498,000 -4,915,000 -3,450,000 -5,239,000 -3,120,000 -5,709,000 -3,701,000 -3,281,000 -4,628,000 -2,892,000 -3,927,000 -3,474,000 -4,605,000 -2,647,000 -4,728,000 -3,780,000    -6,026,000           -4,265,000 -2,857,000 -2,395,000 -2,600,000 -4,432,000 -3,079,000 -5,283,000 -2,463,000 -5,348,000 -2,424,000 -3,566,000 -2,724,000 -8,292,000 -3,339,000 -2,466,000 -1,720,000 -705,000 -360,000 -651,000 -1,311,000 -876,000 -731,000 
          free cash flows
        6,898,000 55,515,000 10,109,000 -5,557,000 77,124,000 47,058,000 -44,865,000 -37,541,000 -56,989,000 -26,978,000 11,905,000 19,014,000 58,805,000 -12,779,000 13,961,000 17,367,000 35,475,000 10,538,000 -14,493,000 3,408,000 38,927,000 30,919,000 50,052,000    18,812,000 46,900,000   31,063,000 49,594,000 35,107,000 33,906,000      17,407,000 26,746,000 29,497,000 31,453,000 48,853,000 68,726,000 6,247,000 -5,569,000 20,439,000 42,377,000 73,698,000 2,490,000 9,994,000 5,172,000 9,878,000 9,596,000 12,291,000 16,471,000 12,878,000 10,510,000 4,386,000    4,966,000 1,814,000 -13,325,000 -6,244,000 1,520,000 1,323,000 -4,207,000 -16,170,000 -6,127,000 -2,967,000 -3,863,000 -10,572,000 -1,955,000 -18,064,000 2,409,000 -12,070,000 -6,750,000 -5,621,000 -1,398,000 569,000 5,246,000 4,307,000 4,414,000 4,020,000 
          cash flows from investing activities
                                                                                               
          acquisition of property and equipment
        -7,559,000 -6,685,000 -7,028,000 -6,119,000 -4,518,000 -5,490,000 -7,705,000 -8,498,000 -4,915,000 -3,450,000 -5,239,000 -3,120,000 -5,709,000 -3,701,000 -3,281,000 -4,628,000 -2,892,000 -3,927,000 -3,474,000 -4,605,000 -2,647,000 -4,728,000 -3,780,000 -4,326,000 -4,469,000 -5,567,000 -6,026,000                                   -2,984,000 -2,186,000 -4,265,000 -2,857,000 -2,395,000 -2,600,000 -4,432,000 -3,079,000 -5,283,000 -2,463,000 -5,348,000                
          proceeds from sale of property and equipment
        4,950,000 1,063,000 589,000 101,000 60,000 29,000 85,000 217,000 126,000 123,000 44,000 38,000 74,000 143,000 92,000 1,828,000 32,046,000                                                    137,000 6,000 62,000    30,000             
          proceeds from maturities of certificates of deposit
             6,192,000 2,298,000 1,839,000         20,000 1,990,000 700,000                                                                 
          acquisition of business, net of cash acquired
        -92,000  -75,500,000              -3,000,000                                                                 
          payments for intangible and other assets
        -4,422,000 -4,872,000 -4,409,000 -4,148,000 -4,429,000 -4,716,000 -4,372,000 -4,424,000 -4,530,000 -4,222,000 -4,154,000 -4,168,000 -4,273,000 -4,058,000 -3,944,000  -4,198,000 -3,868,000 -4,254,000  -2,831,000 -2,601,000 -4,446,000                                                                 
          net cash from investing activities
        -7,031,000 -10,494,000 -10,940,000 -11,405,000 -8,887,000 -10,067,000 -87,492,000 -12,705,000 -3,127,000 -12,229,000 -9,578,000 -10,075,000 -11,486,000 -9,823,000 -9,077,000 -6,087,000 8,804,000 -7,557,000 -7,834,000 -8,530,000 -5,680,000 -8,142,000 -12,341,000 -14,340,000 -12,730,000 -7,503,000 -8,114,000                                   -3,987,000 -2,883,000 -5,679,000 -17,791,000 -2,563,000 -3,808,000 -9,653,000 12,201,000 -5,244,000 -27,510,000 -5,351,000 -5,069,000 -1,315,000 -4,587,000 -2,502,000 -14,723,000 -8,799,000 -3,593,000 -1,274,000 -65,661,000 -3,876,000 -4,813,000 16,672,000 -23,799,000 -2,587,000 -5,175,000 
          cash flows from financing activities
                                                                                               
          net repayments on bank lines of credit
                                                                                              
          proceeds from long-term debt
        82,000 562,900,000 100,057,000 104,000 32,000 68,000 340,475,000 325,000 594,000 122,000 394,000 112,000 152,000 195,000 100,307,000 103,000 50,142,000 61,000 82,000 326,000 98,000 159,000 156,000 178,000 151,000 243,000 198,000 202,000 349,000 468,000 331,000 177,000 118,000 280,021,000 7,000 233,000 368,000 181,000 34,000 155,000 753,000 137,000 516,000 379,000 72,000 2,769,000 11,100,000               5,186,000 50,000 8,000 44,883,000   561,000 25,458,000 306,000 284,000 1,416,000             
          payments on long-term debt
        -2,516,000 -1,883,000 -129,917,000 -2,104,000 -2,043,000 -2,052,000 -2,078,000 -2,202,000 -2,076,000 -2,099,000 -2,073,000 -2,024,000 -2,041,000 -3,298,000 -242,479,000 -5,181,000 -40,402,000 -205,000 -286,000 -279,000 -239,000 -236,000 -303,000 -247,000 -243,000 -227,000 -253,000                                   -1,066,000 -1,794,000 -1,149,000 -794,000 -709,000 -22,488,000   715,000 -1,057,000 -218,000 -256,000   6,000 -493,000 -654,000 -658,000 -666,000 -650,000 -659,000 -658,000 -642,000 -665,000 -659,000 -661,000 
          proceeds from exercise of stock options and employee stock purchase plan
        4,029,000 392,000 2,852,000 500,000 3,380,000 1,732,000 2,399,000 464,000 2,499,000 764,000 2,451,000 2,336,000 2,963,000 245,000 2,163,000 188,000 2,307,000 156,000 2,145,000 115,000 2,817,000 483,000 2,102,000 -2,295,000 2,301,000 1,200,000 4,897,000 3,356,000 520,000 2,289,000 2,780,000 110,000 3,718,000 3,496,000 4,358,000 2,099,000 1,738,000 1,327,000 3,067,000 361,000 1,296,000 1,732,000 209,000 1,501,000 1,641,000 23,000 2,951,000 2,602,000 1,085,000 1,109,000 2,380,000 2,731,000 4,801,000 1,235,000 8,328,000 1,838,000 1,585,000    1,599,000                         
          payment of contingent consideration
        -486,000 -146,000 -331,000                                                                                 
          repurchase of common stock
          -80,443,000                                                                                 
          taxes paid related to net share settlement of equity awards
        -93,000 -1,834,000 -34,419,000 -32,000 -51,000 -1,325,000 -21,263,000 -62,000 -209,000 -801,000 -22,239,000 -114,000 -226,000 -474,000 -11,140,000 -76,000 -193,000 -550,000 -18,611,000 -103,000 -219,000 -463,000 -10,864,000 2,256,000 -51,000 -795,000 -25,915,000                                                             
          net cash from financing activities
        1,502,000 160,445,000 12,187,000 20,468,000 -78,828,000 -24,577,000 113,759,000 33,525,000 33,670,000 78,905,000 -1,850,000 -125,000 -33,319,000 10,120,000 -13,851,000 -33,151,000 -48,491,000 24,839,000 -7,205,000 -12,511,000 -16,004,000 -33,564,000 -41,846,000 -36,196,000 -22,668,000 -18,387,000 -27,479,000  -31,558,000 34,639,000 -25,077,000 -20,244,000 95,364,000 -15,752,000 252,000 212,623,000   12,891,000       14,470,000 32,772,000 11,809,000 4,565,000 653,000 -738,000 1,054,000            499,000 12,799,000 13,509,000 6,163,000 1,136,000 -9,267,000 5,618,000 38,273,000 7,338,000 3,177,000 3,584,000 12,634,000 4,039,000 7,726,000 6,549,000 -2,269,000 31,195,000 -159,000 -171,000 -358,000 -253,000 -364,000 19,609,000 -38,000 
          effect of exchange rate changes on cash
        -414,000 155,000 -373,000 950,000 270,000 -1,324,000 593,000 2,133,000 -4,284,000 1,519,000 125,000 -806,000 313,000 391,000 -4,526,000 -1,834,000 -1,733,000 -78,000 108,000 1,176,000 1,709,000 1,178,000 1,985,000 -4,558,000 1,015,000 -419,000   306,000 395,000 -422,000 437,000          1,073,000 34,000 190,000 801,000  306,000 1,344,000    1,711,000 -108,000 697,000 658,000 768,000 109,000 533,000 -1,548,000 -1,094,000 1,409,000 884,000 -738,000 1,112,000 -532,000 -47,000 -242,000 -702,000 15,000 -167,000    438,000 -338,000 308,000 989,000 216,000 857,000 216,000 127,000 -35,000 965,000 41,000 -85,000 100,000 
          net increase in cash and cash equivalents
        8,514,000 212,306,000 18,011,000 10,575,000 -5,803,000 16,580,000 -10,300,000                     11,682,000 9,556,000 1,597,000 -17,972,000 19,945,000 22,378,000 20,224,000 15,282,000 18,596,000 17,636,000   -1,448,000 4,261,000   -51,000 2,713,000 2,489,000      2,744,000   3,580,000 5,652,000 18,769,000   -3,479,000 -6,264,000 13,867,000 2,816,000 3,313,000    -2,807,000 6,634,000 1,465,000 -3,111,000   1,025,000 1,479,000      -69,505,000    -18,504,000 22,227,000 -362,000 
          cash and cash equivalents—beginning of period
        106,405,000  95,353,000  76,750,000  64,202,000  80,613,000  76,102,000  96,316,000 84,814,000 169,650,000 104,370,000   47,593,000                                                 
          cash and cash equivalents—end of period
        8,514,000 212,306,000 124,416,000  -5,803,000 16,580,000 85,053,000  -25,815,000 44,667,000 82,591,000  20,022,000 -8,390,000 53,990,000  -3,053,000 31,669,000 54,663,000  19,890,000 -4,350,000 76,925,000  5,970,000 9,914,000 85,142,000 11,682,000 9,556,000 86,411,000 -17,972,000 19,945,000 192,028,000 20,224,000 15,282,000 122,966,000   80,930,000                                                 
          supplemental disclosure of cash flow information:
                                                                                               
          cash paid, net during the period for:
                                                                                               
          interest
        5,846,000 4,438,000 8,211,000  10,248,000 6,390,000 5,231,000 7,893,000 7,301,000 6,112,000 5,455,000 5,629,000 5,670,000 5,122,000 3,856,000 1,128,000 2,350,000 1,101,000 2,400,000 258,000 2,709,000 -3,000 3,015,000 940,000 2,531,000 1,256,000 2,986,000 3,076,000 2,616,000 3,702,000 2,725,000 931,000 2,852,000 1,368,000 1,962,000 956,000 668,000 590,000 305,000 1,248,000 207,000 651,000 696,000 968,000 1,704,000 1,174,000   129,000   950,000   472,000    639,000 497,000 629,000 812,000 1,063,000    1,133,000    896,000    464,000 519,000 122,000 -4,000 -42,000 20,000 -128,000 -231,000 -248,000 -204,000 -193,000 -207,000 -209,000 
          income taxes
        8,943,000 22,776,000 9,609,000  15,358,000 4,566,000 13,540,000 8,397,000 11,942,000 14,966,000 6,795,000 3,670,000 3,834,000 4,700,000 7,235,000 6,694,000 2,177,000 2,987,000 4,800,000 4,704,000 2,949,000 3,390,000 1,735,000 2,936,000 6,473,000 5,570,000 4,098,000 7,522,000 6,713,000 13,998,000 9,799,000 7,757,000 4,172,000 3,443,000 6,643,000 6,022,000 7,807,000 7,047,000 5,221,000 8,020,000 16,687,000 4,824,000 1,735,000 6,284,000 4,715,000 4,001,000   1,450,000   -479,000   2,413,000    1,805,000 3,032,000 1,498,000 1,132,000 1,139,000    1,027,000    2,090,000    632,000 -223,000 1,873,000 1,096,000 1,053,000 1,083,000 907,000 776,000 1,009,000 1,664,000 2,297,000 2,426,000 344,000 
          net borrowings (repayments) on bank lines of credit
          74,100,000 22,000,000 -80,000,000 -23,000,000 -125,000,000         -13,000,000 -8,622,000 55,622,000 26,000,000  -18,000,000 -33,000,000 -8,000,000              70,000,000                                                   
          stock-based compensation
                                                                                  1,241,000             
          purchases of certificates of deposit
                  -2,068,000 -340,000 -4,266,000 -601,000 -73,000 -42,000 -2,075,000 -20,000 -106,000 -72,000 -2,192,000 -813,000 -1,815,000                                                                 
          acquisition of businesses, net of cash acquired
                 -2,485,000 -1,139,000 -1,606,000 -1,871,000        -5,419,000 -3,350,000                                                               
          cash and cash equivalents—beginning of year
                                                                                               
          cash and cash equivalents—end of year
                                                                                               
          interest paid
                                                      398,000   625,000   266,000    576,000                235,000               
          income taxes paid
                                                      4,064,000   4,335,000   1,966,000    1,207,000                1,040,000               
          other liabilities
            -30,761,000                                                                                   
          recovery of losses on accounts receivable
              -427,000    -433,000  -3,537,000                                                                           
          impairment charges
                           552,000        4,037,000   5,418,000                                                   
          gain on sale of property and equipment
                                                                                              
          net borrowings on bank lines of credit
               35,000,000 33,000,000 81,000,000 20,000,000  -20,000,000 20,000,000 155,000,000          4,000,000 -4,000,000 7,000,000 -25,000,000 -17,000,000 53,000,000  -19,000,000 111,000,000  10,000,000 214,000,000   45,000,000    6,000,000  -19,000,000 20,000,000                                          
          payments of contingent consideration
                -138,000 -81,000 -383,000  -1,202,000 -2,051,000 -415,000  -171,000 -1,196,000 -304,000  -226,000 -507,000 -121,000  -4,045,000 -1,076,000 -144,000                                                             
          repurchases of common stock
                    -12,965,000 -4,497,000 -17,287,000  -51,552,000 -29,049,000 -16,231,000  -235,000 -24,816,000  -24,781,000 -13,732,000 -13,262,000                                                             
          net change in cash and cash equivalents
                -25,815,000 44,667,000 5,841,000  20,022,000 -8,390,000 -10,212,000  -3,053,000 31,669,000 -25,950,000  19,890,000 -4,350,000 823,000  5,970,000 9,914,000 -11,174,000                                                             
          proceeds from certificates of deposit
                                                                                               
          acquisition of intangible and other assets
                               -4,595,000 -4,911,000 -1,765,000 -2,088,000                                   -1,003,000 -727,000 -1,141,000 -585,000 41,000 -853,000                     
          provision (recoveries) for losses on accounts receivable
                          -1,365,000                                                                     
          provision for losses on accounts receivable
                           3,647,000 936,000                   -447,000 140,000   -373,000 954,000 23,000 2,063,000 151,000 294,000           224,000 2,656,000 1,353,000 1,144,000   140,000 145,000    114,000       1,462,000 -1,120,000   -16,000 102,000  -171,000 122,000 143,000 
          net payments on bank lines of credit
                                                                      -9,413,000                         
          provision for loss on accounts receivable
                              2,916,000                                                                 
          net borrowings (payments) on bank lines of credit
                                                                                               
          adjustments to reconcile net income to net cash provided by operating activities, net of effects from acquisitions:
                                                                                               
          net cash provided by operating activities
                                45,926,000             -5,254,000 24,812,000                                                 
          cash flows from operating activities:
                                                                                               
          adjustments to reconcile net income to net cash from operating activities:
                                                                                               
          cash flows from investing activities:
                                                                                               
          cash flows from financing activities:
                                                                                               
          stock based compensation expense
                                    8,163,000 5,463,000  6,253,000 5,487,000 6,203,000 8,229,000 5,830,000 4,828,000 4,289,000 4,465,000 4,366,000 6,057,000 6,083,000 5,995,000 3,254,000 5,083,000 5,638,000 4,335,000 3,614,000 3,533,000 1,883,000 1,951,000 1,511,000 1,532,000 1,454,000 1,298,000 1,326,000 1,287,000 1,270,000 1,128,000 1,160,000 1,503,000 1,199,000 1,193,000 1,280,000 1,196,000 1,206,000 1,095,000 1,081,000 1,362,000 1,450,000 1,375,000                 
          repurchase of common shares
                                                                                               
          stock based compensation
                                                                                               
          gain on sale of business
                                                                                               
          deferred revenues
                                                                                               
          net proceeds from sale of business
                                                                                               
          taxes paid related to net share settlements of equity awards
                                                                                               
          prepaid expenses and other current assets
                                                      3,446,000 9,055,000 2,318,000  4,846,000 5,691,000   78,000       -2,907,000 -5,528,000 3,175,000 -1,328,000 -1,018,000 -4,268,000 9,726,000                    
          adjustments to reconcile net income to cash flows from operating activities:
                                                                                               
          cash and cash equivalents-beginning of period
                                               38,831,000 34,697,000   91,452,000   55,619,000   51,989,000    25,172,000    18,232,000  15,980,000                     
          cash and cash equivalents-end of period
                                            17,636,000    4,261,000 7,506,000 37,274,000 -51,000 2,713,000 37,186,000   73,707,000   58,363,000   55,569,000    24,630,000    21,048,000  791,000 -516,000 14,644,000                     
          net cash provided by (used in) financing activities
                                                                                               
          net increase (decrease) in cash and cash equivalents
                                              33,337,000                                                 
          tax benefit of share based compensation plan
                                                                                               
          other accrued expenses and current liabilities
                                                           2,448,000 -659,000         3,055,000 -2,863,000 -1,637,000 -151,000 -17,000 -949,000  -3,898,000 -448,000 -2,159,000  -3,087,000 -573,000 -691,000 3,084,000 -1,291,000 -2,470,000 1,221,000 -1,536,000 5,114,000 -2,018,000 -1,088,000 -1,415,000 -306,000 -425,000 -63,000 
          adjustments to reconcile net income to net cash provided by operating activities:
                                                                                               
          accrued warranties
                                                     77,000    609,000 1,013,000 37,000 1,834,000 740,000 265,000 995,000 -51,000     -77,000 -492,000 2,363,000 1,000 1,193,000 498,000 -711,000 801,000 -34,000 -835,000 218,000 113,000 507,000 -341,000 -2,097,000 -353,000   -295,000 -653,000 -444,000 53,000 515,000 -462,000   
          other accrued expenses and liabilities
                                                                                               
          acquisition of businesses
                                                                                               
          equity in earnings of unconsolidated affiliates
                                                                         -155,000 -81,000      -160,000               
          equity in (earnings) loss of unconsolidated affiliates
                                                                                              
          net borrowings of bank lines of credit
                                                      40,000,000                                         
          cash and cash equivalents - beginning of period
                                                                             14,623,000             
          cash and cash equivalents - end of period
                                                      830,000   37,919,000   4,307,000    18,769,000    -6,264,000              16,102,000             
          net decrease in cash and cash equivalents
                                                                         -516,000 -1,336,000     702,000     -16,461,000 4,487,000 -15,250,000    -4,277,000     
          cash paid (refunded), net during the period for:
                                                                                               
          changes in operating assets and liabilities:
                                                                                               
          acquisition of businesses-net of cash acquired
                                                                                               
          payments of capital lease obligations
                                                                                               
          other receivables
                                                           296,000   91,000 1,985,000 -1,737,000     -451,000 -1,497,000 2,156,000 -1,396,000 373,000 876,000 -215,000 -1,331,000 -1,899,000 3,487,000 -582,000 -1,842,000 -1,438,000 -401,000 -180,000 405,000 719,000 1,180,000 -3,726,000 -396,000 -1,606,000 1,177,000 201,000 1,397,000 718,000 -1,710,000 
          payments on long-term debt and capital lease obligations
                                                                                               
          cash paid (refunded), net during the year for:
                                                                                               
          repayment of bank lines of credit
                                                                                               
          net repayments of bank lines of credit
                                                                                               
          recoveries of losses on accounts receivable
                                                                                               
          equity in gains of unconsolidated affiliates
                                                                                               
          purchases of property and equipment
                                                                                        -1,720,000 -705,000 -360,000 -651,000 -1,311,000 -876,000 -731,000 
          purchases of intangible and other assets
                                                                                               
          cash paid during the year for:
                                                                                               
          tax effect of exercise (cancellation) of stock options
                                                                                               
          proceeds from the sale of property and equipment
                                                               2,000 31,000   2,244,000 26,000 30,000 351,000 42,000 7,000 88,000                     
          purchase of investments and marketable securities
                                                                                               
          buyback of subsidiary stock
                                                                       -624,000 -14,391,000 -216,000 -443,000                     
          net proceeds from (repayments of) bank lines of credit
                                                                                               
          supplemental disclosure of non-cash investing activities:
                                                                                               
          equipment purchased under capital lease obligations
                                                                                               
          buyback of subsidiary stock with common stock
                                                                                             
          acquisition of business-net of cash acquired
                                                                                               
          net payments of capital lease obligations
                                                                                               
          provision (recovery) for losses on accounts receivable
                                                                                               
          repurchase of treasury shares
                                                                                               
          provision for (recapture of) losses on accounts receivable
                                                                                               
          equity in earnings (losses) of unconsolidated affiliates
                                                                                               
          settlement of spacelabs healthcare purchase price dispute
                                                                                               
          minority interest in net income of subsidiary
                                                                       108,000   118,000 272,000 1,545,000   795,000 30,000     -62,000 -6,000         
          equity in losses of unconsolidated affiliates
                                                                       -69,000                        
          non-cash impairment and restructuring charges
                                                                                               
          acquisition of businesses—net of cash acquired
                                                                                               
          net proceeds from (payments of) capital lease obligations
                                                                       -358,000                        
          proceeds from exercise of stock options, warrants and employee stock purchase plan
                                                                   350,000 1,591,000   1,793,000 3,561,000 978,000 884,000 2,253,000 3,193,000 1,347,000 864,000                 
          minority interest in net income of consolidated subsidiaries
                                                                                               
          net cash provided (used) in operating activities
                                                                                               
          net cash provided (used) in financing activities
                                                                                               
          buyback of subsidiary stock in accounts payable
                                                                                               
          adjustments to reconcile net income to net cash provided (used) by operating activities:
                                                                                               
          minority interest in net earnings of consolidated subsidiaries
                                                                      -30,000                         
          equity in (earnings) loss of unconsolidated affiliate
                                                                      25,000                         
          accrued payroll and employee benefits
                                                                      -1,054,000    -369,000                     
          net cash provided (used) by operating activities
                                                                      14,686,000                         
          payments on capital lease obligations
                                                                      -263,000   -237,000 -341,000   -44,000 -273,000                 
          net cash provided (used) by financing activities
                                                                      -9,871,000                         
          settlement of spacelab purchase price dispute
                                                                                               
          proceeds from issuance of subsidiary stock
                                                                               10,000 -10,000               
          settlement of spacelabs purchase price dispute
                                                                                               
          impairment, restructuring and other charges
                                                                                               
          in-process research and development
                                                                            561,000                 
          net proceeds from the sale of marketable securities
                                                                                               
          net proceeds from bank lines of credit
                                                                          -16,775,000 411,000 -10,842,000 3,039,000 13,281,000    10,637,000 8,255,000     245,000       
          cash paid for interest
                                                                        1,217,000    1,171,000                   
          cash paid for income taxes
                                                                        702,000    860,000                   
          minority interest in net loss of subsidiary
                                                                              -638,000                 
          non-cash impairment charges
                                                                                               
          proceeds from the sale of marketable securities
                                                                                               
          purchases of marketable securities
                                                                                               
          net proceeds from (payments on) bank lines of credit
                                                                                               
          net loss
                                                                          -2,067,000 4,283,000 3,613,000 -20,613,000 -6,041,000                 
          adjustments to reconcile net loss to net cash from operating activities:
                                                                                               
          settlement of spacelabs purchase dispute
                                                                                               
          tax effect of stock option benefit
                                                                                               
          impairment of equity investments
                                                                                               
          other current and long-term liabilities
                                                                                               
          proceeds from sale of minority interest
                                                                                               
          net proceeds on capital lease obligations
                                                                           -281,000                    
          purchase of treasury stock
                                                                                   -2,238,000 -1,583,000         
          equity in undistributed earnings of unconsolidated affiliates
                                                                            569,000 -30,000 -40,000    -24,000             
          impairment of long-lived assets
                                                                                               
          changes in operating assets and liabilities – net of business acquisitions:
                                                                                               
          proceeds from sale of marketable securities
                                                                                             
          cash paid for business acquisitions, net of cash acquired
                                                                            518,000 259,000 -24,209,000   -311,000  -9,662,000 -1,359,000  -66,724,000 -6,814,000 -3,292,000  -2,000,000 -1,379,000 -1,450,000 
          intangible and other assets
                                                                            -402,000 -373,000 -900,000        232,000         
          net proceeds from long-term debt
                                                                                               
          cash and cash equivalents-beginning of year
                                                                            13,799,000                 
          cash and cash equivalents-end of year
                                                                            6,634,000 1,465,000 10,688,000                 
          impairment, restructuring, and other charges
                                                                                               
          gain on sale of marketable securities
                                                                                     -286,000       
          loss on sale of property and equipment
                                                                             166,000 -25,000 126,000 54,000 8,000             
          income taxes receivable
                                                                             -668,000 -1,320,000 3,198,000 -827,000 787,000 -50,000 -2,300,000            
          prepaid expenses
                                                                             1,274,000 -1,223,000 1,289,000 -681,000 200,000 -465,000 -516,000 -25,000 229,000 -66,000 149,000 420,000 -764,000 -840,000 320,000 -414,000 -72,000 30,000 
          supplemental disclosure of non-cash investing activities –
                                                                                               
          capital expenditures in accounts payable
                                                                             -1,880,000 2,920,000  -36,000               
          restructuring charges
                                                                              -169,000 353,000 -295,000 742,000     1,061,000     
          supplemental disclosure of non-cash investing activities—
                                                                                               
          changes in operating assets and liabilities—net of business acquisitions
                                                                                               
          income taxes payable
                                                                                 -281,000 -503,000 -124,000 -1,403,000 -654,000 700,000 -55,000 -514,000 29,000 334,000 -2,368,000 612,000 177,000 1,750,000 
          proceeds from the sale of investments and marketable securities
                                                                                               
          purchases of investments and marketable securities
                                                                               -114,000                
          proceeds from private placement
                                                                                               
          supplemental disclosure of cash flow information
                                                                                               
          supplemental disclosure of non cash investing activities
                                                                                               
          capital expenditure in accounts payable
                                                                                               
          adjustments to reconcile net income to net cash used by operating activities:
                                                                                               
          impairment of equity investment
                                                                                        247,000     
          changes in operating assets and liabilities, net of effects of acquisitions:
                                                                                               
          deferred rent
                                                                                -34,000               
          acquisitions of businesses, net of cash acquired
                                                                                               
          increase in intangible assets
                                                                                               
          proceeds from bank lines of credit
                                                                                               
          payments on capital lease obligation
                                                                                -93,000               
          proceeds from exercise of stock options, warrants, and employee stock purchase plan
                                                                                               
          effect of exchange rate changes on cash and cash equivalents
                                                                                829,000               
          cash and cash equivalents, beginning of period
                                                                                   39,879,000  94,246,000  67,604,000 
          cash and cash equivalents, end of period
                                                                                -4,030,000    -16,461,000 4,487,000 24,629,000  -69,505,000 -4,613,000 89,969,000  -18,504,000 22,227,000 67,242,000 
          supplemental disclosures of cash flow information:
                                                                                               
          non-cash investing and financing activities:
                                                                                               
          property and equipment purchased through capital lease
                                                                                    187,000           
          stock-based compensation expense - non cash
                                                                                               
          write-off of property and equipment
                                                                                     272,000         
          changes in operating assets and liabilities-net of business acquisitions
                                                                                               
          inventory
                                                                                 -535,000 -3,013,000 1,001,000 -7,872,000 755,000 -2,519,000 -4,044,000 -6,469,000 -2,570,000 -2,029,000 7,159,000 -2,321,000 -3,417,000 -5,741,000 
          sales return allowance
                                                                                               
          additions to property and equipment
                                                                                 -2,424,000 -3,566,000 -2,724,000 -8,292,000 -3,339,000 -2,466,000         
          deposit on escrow and other
                                                                                               
          payments on bank lines of credits
                                                                                               
          provision for (recoveries of) losses on accounts receivable
                                                                                  841,000             
          changes in operating assets and liabilities, net of business acquisitions:
                                                                                               
          intangibles and other assets
                                                                                  -740,000             
          payments on long-term debt, excluding capital lease obligations
                                                                                  -66,000             
          proceeds from exercise of stock options and employee share purchase plan
                                                                                  647,000             
          cash paid during the period for:
                                                                                               
          write-off of deferred acquisition costs
                                                                                             
          write down of equity investments
                                                                                               
          equity in undistributed losses of unconsolidated affiliates
                                                                                               
          stock option compensation
                                                                                               
          cash paid for business acquisitions and minority interests—net of cash acquired
                                                                                               
          cash received on note receivable
                                                                                           350,000 250,000   
          cash proceeds from sale of minority interest and distribution rights for dolphin medical
                                                                                               
          net increase in cash equivalents
                                                                                               
          supplemental disclosure of noncash investing activities
                                                                                               
          minority interest in net (loss) of subsidiary
                                                                                               
          equity earnings of unconsolidated affiliates
                                                                                    -84,000 -28,000 -77,000         
          changes in operating assets and liabilities net of business acquisitions:
                                                                                               
          increase in other assets
                                                                                    5,407,000           
          cash proceeds from sale of marketable securities
                                                                                               
          cash proceeds from the sale of minority interest and distribution rights for dolphin medical
                                                                                              
          proceeds from lessor in consideration for extension of lease contract
                                                                                              
          term debt for the purchase of land and building net of payments
                                                                                               
          payments under capital lease obligation
                                                                                    -140,000           
          supplemental disclosures of cash flow information — cash paid during the period for:
                                                                                               
          supplemental disclosures of non-cash activities:
                                                                                               
          write-off of equity investment
                                                                                               
          prepaid income taxes
                                                                                     629,000 -1,130,000    -640,000  -1,432,000 617,000 -619,000 
          decrease in intangible assets
                                                                                               
          net (payments on) / proceeds from bank lines of credits
                                                                                               
          term debt for the purchase of land and building
                                                                                               
          proceeds from exercise of stock options and warrants
                                                                                     530,000 306,000  246,000 347,000 300,000  421,000 68,000 148,000 
          supplemental disclosures of cash flow information—cash paid during the period for:
                                                                                               
          supplemental disclosure of non-cash activities:
                                                                                               
          accrued warranty
                                                                                      -436,000        189,000 
          net proceeds from bank lines of credits
                                                                                      -334,000      -103,000 -345,000 475,000 
          supplemental disclosures of cash flow information - cash paid during the period for:
                                                                                               
          proceeds on the sale of investments and marketable securities
                                                                                               
          cash paid for business acquisition—net of cash acquired
                                                                                               
          net (repayment of) proceeds from bank lines of credit
                                                                                               
          cash and cash equivalents, beginning of year
                                                                                               
          cash and cash equivalents, end of year
                                                                                               
          supplemental disclosure of cash flow information—cash paid during the year for:
                                                                                               
          (recoveries) provision for losses on accounts receivable
                                                                                               
          minority interest
                                                                                         -9,000 57,000  41,000 39,000 5,000 
          purchase of marketable securities available for sale
                                                                                               
          purchase of investment included in other assets
                                                                                               
          other assets
                                                                                        -815,000 -15,000 -48,000  -116,000 -496,000 -469,000 
          cash proceeds from sale of marketable securities and investments
                                                                                               
          proceeds from issuance of stock
                                                                                            -17,000   
          purchase of equity investment included in other assets
                                                                                               
          purchase of investments
                                                                                          -1,113,000     
          provision for losses (recoveries) on accounts receivable
                                                                                               
          writedown of equity investment
                                                                                               
          gain on sale of investment
                                                                                               
          gain on sale of subsidiary
                                                                                               
          equity and earnings of unconsolidated affiliates
                                                                                               
          changes in operating assets and liabilities—net of business acquisitions and disposal
                                                                                               
          cash received for business disposition—net of disposition costs
                                                                                               
          proceeds from exercise of stock options and employee stock purchase program
                                                                                               
          repurchase of treasury stock
                                                                                               
          write down of equity investment
                                                                                               
          purchase of marketable securities, available-for-sale
                                                                                               
          purchase of equity investments included in other assets
                                                                                               
          purchase of equity investments
                                                                                              -2,525,000 
          proceeds on the sale of investments
                                                                                               
          purchases of investments
                                                                                               
          decrease in equity investments
                                                                                               
          proceeds from exercise of stock options and sale of stock
                                                                                               
          supplemental disclosure of cash flow information—cash paid
                                                                                               
          during the year for: