7Baggers

Digi International Inc
(NASDAQ:DGII) 

DGII stock logo

Digi International Inc. provides business and mission-critical Internet of Things (IoT) products, services, and solutions in the United States and internationally. The company operates in two segments, IoT Products & Services and IoT Solutions. It offers cellular routers for mission-critical wireles...

Founded: 1985
Full Time Employees: 656
Sector: Technology
Industry: Communication Equipment

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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 2019-06-30 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 2002-03-31 2001-12-31 
                                                                                                      
      revenue:
                                                                                                      
      product
    84,455,000 81,852,000 77,676,000 74,136,000 71,987,000 72,785,000 74,240,000 74,618,000 78,432,000 77,250,000 83,874,000 81,714,000 83,819,000 81,755,000 79,578,000 77,627,000 69,167,000 63,798,000 67,974,000 68,303,000 66,924,000 62,604,000 65,679,000 62,807,000 65,641,000 54,247,000 74,485,000 47,136,000 52,097,000 50,812,000 34,433,250 51,691,000 47,588,000                                                                  
      service
    46,288,000 40,610,000 36,662,000 33,378,000 32,516,000 31,081,000 30,812,000 30,585,000 29,270,000 28,839,000 28,289,000 30,522,000 27,325,000 27,551,000 26,160,000 25,890,000 25,546,000 20,459,000 11,132,000 10,776,000 10,377,000 10,542,000 7,490,000 7,531,000 7,806,000 8,070,000           3,849,000 2,002,000 1,879,000 1,583,000 1,430,000 2,012,000 3,991,000 4,537,000 5,043,000 3,790,000 4,618,000 4,582,000 5,322,000 5,333,000                                                 
      total revenue
    130,743,000 122,462,000 114,338,000 107,514,000 104,503,000 103,866,000 105,052,000 105,203,000 107,702,000 106,089,000 112,163,000 112,236,000 111,144,000 109,306,000 105,738,000 103,517,000 94,713,000 84,257,000 79,106,000 79,079,000 77,301,000 73,146,000 73,169,000 70,338,000 73,447,000 62,317,000 64,960,000 61,166,000 65,764,000 62,313,000 65,662,000 62,716,000 54,791,000 45,197,000 45,105,000 45,739,000 45,615,000 45,175,000 50,454,000 52,130,000 50,162,000 50,259,000 56,446,000 54,538,000 53,151,000 48,723,000 51,612,000 47,885,000 45,882,000 47,322,000                                                 
      yoy
    25.11% 17.90% 8.84% 2.20% -2.97% -2.10% -6.34% -6.27% -3.10% -2.94% 6.08% 8.42% 17.35% 29.73% 33.67% 30.90% 22.52% 15.19% 8.11% 12.43% 5.25% 17.38% 12.64% 15.00% 11.68% 0.01% -1.07% -2.47% 20.03% 37.87% 45.58% 37.12% 20.12% 0.05% -10.60% -12.26% -9.06% -10.12% -10.62% -4.42% -5.62% 3.15% 9.37% 13.89% 15.84% 2.96%                                                     
      qoq
    6.76% 7.11% 6.35% 2.88% 0.61% -1.13% -0.14% -2.32% 1.52% -5.42% -0.07% 0.98% 1.68% 3.37% 2.15% 9.30% 12.41% 6.51% 0.03% 2.30% 5.68% -0.03% 4.02% -4.23% 17.86% -4.07% 6.20% -6.99% 5.54% -5.10% 4.70% 14.46% 21.23% 0.20% -1.39% 0.27% 0.97% -10.46% -3.22% 3.92% -0.19% -10.96% 3.50% 2.61% 9.09% -5.60% 7.78% 4.37% -3.04%                                                  
      cost of sales:
                                                                                                      
      cost of product
    37,765,000 37,181,000 32,760,000 31,537,000 31,758,000 31,973,000 33,284,000 35,846,000 37,894,000 37,766,000 40,971,000 40,650,000 40,218,000 39,612,000 38,458,000 38,435,000 34,483,000 29,239,000 32,318,000 31,477,000 32,495,000 27,776,000 31,385,000 28,759,000 29,687,000 28,491,000 38,564,000 25,982,000 28,496,000 25,813,000 17,232,250 26,639,000 23,080,000                                                                  
      cost of service
    7,782,000 7,573,000 7,426,000 6,756,000 6,859,000 6,542,000 6,583,000 6,147,000 6,537,000 6,270,000 6,248,000 6,814,000 7,101,000 7,070,000 6,984,000 6,352,000 6,943,000 5,748,000 3,003,000 3,933,000 3,238,000 3,237,000 3,051,000 3,005,000 3,873,000 2,561,000           2,224,000 1,284,000 1,566,000 1,165,000 1,137,000 1,192,000 2,948,000 3,460,000 3,575,000 3,689,000 4,090,000 4,149,000 4,090,000 4,151,000                                                 
      amortization
    1,521,000 1,317,000 1,074,000 953,000 953,000 953,000 955,000 952,000 953,000 953,000 953,000 953,000 953,000 1,103,000 1,301,000 1,304,000 1,303,000 1,389,000 1,159,000 1,113,000 1,111,000 1,114,000 1,215,000 1,225,000 1,246,000 801,000                                                                         
      total cost of sales
    47,068,000 46,071,000 41,260,000 39,246,000 39,570,000 39,468,000 40,822,000 42,945,000 45,384,000 44,989,000 48,172,000 48,417,000 48,272,000 47,785,000 46,743,000 46,091,000 42,729,000 36,376,000 36,480,000 36,523,000 36,844,000 32,127,000 35,651,000 32,989,000 34,806,000 31,853,000 34,365,000 32,838,000 35,435,000 32,530,000 34,699,000 33,387,000 28,137,000 23,260,000 23,771,000 23,254,000 23,713,000 23,722,000 25,850,000 26,153,000 25,420,000 25,902,000 29,764,000 29,189,000 29,073,000 26,801,000 27,965,000 25,736,000 24,102,000 24,414,000                                                 
      gross profit
    83,675,000 76,391,000 73,078,000 68,268,000 64,933,000 64,398,000 64,230,000 62,258,000 62,318,000 61,100,000 63,991,000 63,819,000 62,872,000 61,521,000 58,995,000 57,426,000 51,984,000 47,881,000 42,626,000 42,556,000 40,457,000 41,019,000 37,518,000 37,349,000 38,641,000 30,464,000 30,595,000 28,328,000 30,329,000 29,783,000 30,963,000 29,329,000 26,654,000 21,937,000 21,334,000 22,485,000 21,902,000 21,453,000 24,604,000 25,977,000 24,742,000 24,357,000 26,682,000 25,349,000 24,078,000 21,922,000 23,647,000 22,149,000 21,780,000 22,908,000 25,963,000 24,720,000 24,961,000 24,479,000 24,820,000 25,304,000 25,783,000 24,430,000 27,516,000 28,755,000 25,651,000 24,666,000 24,030,000 23,718,000 22,748,000 21,713,000 19,411,000 21,437,000 19,169,000 21,248,000 25,940,000 24,857,000 23,177,000 23,895,000 23,819,000 23,003,000 22,511,000 22,013,000 18,015,000 20,638,000 19,486,000 19,366,000 21,182,000 18,205,000 17,984,000 18,311,000 17,884,000 17,261,000 16,535,000          
      yoy
    28.86% 18.62% 13.78% 9.65% 4.20% 5.40% 0.37% -2.45% -0.88% -0.68% 8.47% 11.13% 20.94% 28.49% 38.40% 34.94% 28.49% 16.73% 13.61% 13.94% 4.70% 34.65% 22.63% 31.84% 27.41% 2.29% -1.19% -3.41% 13.79% 35.77% 45.13% 30.44% 21.70% 2.26% -13.29% -13.44% -11.48% -11.92% -7.79% 2.48% 2.76% 11.11% 12.83% 14.45% 10.55% -4.30% -8.92% -10.40% -12.74% -6.42% 4.61% -2.31% -3.19% 0.20% -9.80% -12.00% 0.51% -0.96% 14.51% 21.24% 12.76% 13.60% 23.80% 10.64% 18.67% 2.19% -25.17% -13.76% -17.29% -11.08% 8.90% 8.06% 2.96% 8.55% 32.22% 11.46% 15.52% 13.67% -14.95% 13.36% 8.35% 5.76% 18.44% 5.47% 8.76%              
      qoq
    9.54% 4.53% 7.05% 5.14% 0.83% 0.26% 3.17% -0.10% 1.99% -4.52% 0.27% 1.51% 2.20% 4.28% 2.73% 10.47% 8.57% 12.33% 0.16% 5.19% -1.37% 9.33% 0.45% -3.34% 26.84% -0.43% 8.00% -6.60% 1.83% -3.81% 5.57% 10.04% 21.50% 2.83% -5.12% 2.66% 2.09% -12.81% -5.29% 4.99% 1.58% -8.71% 5.26% 5.28% 9.83% -7.29% 6.76% 1.69% -4.92% -11.77% 5.03% -0.97% 1.97% -1.37% -1.91% -1.86% 5.54% -11.22% -4.31% 12.10% 3.99% 2.65% 1.32% 4.26% 4.77% 11.86% -9.45% 11.83% -9.78% -18.09% 4.36% 7.25% -3.00% 0.32% 3.55% 2.19% 2.26% 22.19% -12.71% 5.91% 0.62% -8.57% 16.35% 1.23% -1.79% 2.39% 3.61% 4.39%           
      gross margin %
    64.00% 62.38% 63.91% 63.50% 62.14% 62.00% 61.14% 59.18% 57.86% 57.59% 57.05% 56.86% 56.57% 56.28% 55.79% 55.47% 54.89% 56.83% 53.88% 53.81% 52.34% 56.08% 51.28% 53.10% 52.61% 48.89% 47.10% 46.31% 46.12% 47.80% 47.16% 46.76% 48.65% 48.54% 47.30% 49.16% 48.01% 47.49% 48.77% 49.83% 49.32% 48.46% 47.27% 46.48% 45.30% 44.99% 45.82% 46.25% 47.47% 48.41% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% 
      operating expenses:
                                                                                                      
      sales and marketing
    27,526,000 25,977,000 25,017,000 23,019,000 22,041,000 21,757,000 21,590,000 21,501,000 20,540,000 19,647,000 21,260,000 20,974,000 20,341,000 19,106,000 19,041,000 18,230,000 17,776,000 15,319,000 15,638,000 15,910,000 15,437,000 14,924,000 13,011,000 13,133,000 14,556,000 12,061,000 11,218,000 11,392,000 11,534,000 11,657,000 11,987,000 11,595,000 11,175,000 9,760,000 8,398,000 8,504,000 8,731,000 8,322,000 8,537,000 8,627,000 8,165,000 8,518,000 9,019,000 9,434,000 10,299,000 10,792,000 10,099,000 9,859,000 10,399,000 10,219,000 9,453,000 10,372,000 10,414,000 10,274,000 8,883,000 9,920,000 10,340,000 10,099,000 10,085,000 10,134,000 9,532,000 9,798,000 9,078,000 9,089,000 9,603,000 9,240,000 8,079,000 8,624,000 8,976,000 9,625,000 9,666,000 9,493,000 9,034,000 8,686,000 8,397,000 8,517,000 8,427,000 8,158,000 7,761,000 7,277,000 6,802,000 6,752,000 7,039,000 6,446,000 6,411,000 6,443,000 6,526,000 6,529,000 6,425,000          
      research and development
    19,280,000 17,154,000 17,080,000 16,227,000 15,325,000 15,027,000 15,480,000 15,132,000 15,044,000 14,633,000 14,454,000 14,945,000 15,155,000 14,094,000 13,899,000 13,968,000 13,819,000 13,412,000 11,801,000 12,374,000 11,355,000 11,093,000 11,010,000 10,892,000 11,532,000 10,331,000 9,893,000 8,584,000 9,569,000 9,518,000 8,605,000 8,205,000 8,617,000 7,751,000 7,262,000 7,420,000 6,979,000 6,905,000 7,412,000 7,948,000 7,757,000 7,838,000 8,332,000 8,374,000 7,779,000 7,562,000 7,868,000 7,253,000 7,411,000 7,257,000 7,529,000 7,606,000 7,775,000 7,417,000 7,003,000 7,779,000 7,753,000 8,232,000 8,125,000 7,860,000 7,849,000 7,808,000 7,102,000 7,159,000 7,078,000 6,486,000 6,388,000 6,823,000 6,196,000 6,974,000 6,927,000 6,995,000 6,529,000 6,589,000 6,097,000 6,039,000 6,068,000 5,972,000 5,634,000 5,402,000 5,011,000 4,815,000 4,681,000 3,778,000 3,820,000 4,252,000 4,200,000 3,994,000 4,453,000 4,510,839 4,176,806 3,962,011 3,684,312 4,145,209 5,435,420 5,540,653  3,725,648 
      general and administrative
    19,796,000 16,934,000 16,700,000 14,099,000 13,840,000 14,255,000 12,263,000 12,717,000 18,583,000 14,687,000 14,796,000 15,424,000 15,201,000 16,358,000 15,311,000 15,149,000 12,825,000 15,242,000 11,901,000 10,153,000 10,134,000 14,415,000 8,288,000 10,378,000 8,791,000 8,555,000 7,376,000 6,751,000 8,441,000 3,117,000 8,355,000 7,302,000 6,359,000 6,549,000 1,510,000 3,337,000 4,680,000 3,804,000 3,617,000 4,283,000 5,065,000 4,061,000 5,066,000 4,720,000 4,540,000 5,188,000 5,254,000 5,317,000 4,619,000 4,723,000 5,067,000 4,850,000 6,390,000 5,116,000 4,380,000 4,560,000 4,201,000 5,047,000 4,536,000 4,597,000 4,628,000 4,395,000 4,581,000 4,926,000 4,224,000 4,158,000 3,841,000 3,435,000 3,398,000 3,883,000 4,569,000 3,484,000 3,960,000 4,022,000 3,114,000 3,349,000 3,302,000 3,578,000 -761,000 4,208,000 4,461,000 4,921,000 4,485,000 3,998,000 3,557,000 3,515,000 3,342,000 3,471,000 3,237,000 3,237,839 3,685,918 3,972,498 4,071,637 3,726,649 5,604,673 5,118,920  4,189,272 
      total operating expenses
    66,602,000 60,065,000 58,797,000 53,345,000 51,206,000 51,039,000 49,333,000 49,350,000 54,167,000 48,967,000 50,510,000 51,343,000 50,697,000 49,558,000 42,112,000 47,452,000 44,420,000 44,082,000 39,340,000 38,538,000 37,087,000 41,165,000 32,297,000 34,494,000 34,917,000 30,947,000 28,487,000 26,707,000 29,544,000 24,225,000 29,058,000 27,292,000 26,151,000 24,060,000 17,170,000 21,776,000 20,390,000 19,031,000 19,566,000 20,852,000 21,089,000 21,068,000 22,417,000 22,519,000 23,136,000 23,542,000 23,221,000 22,429,000 22,429,000 22,280,000 22,399,000 22,828,000 24,542,000 22,807,000 20,266,000 23,222,000 22,354,000 23,614,000 22,970,000 22,591,000 21,989,000 22,001,000 20,645,000 21,174,000 20,553,000 19,884,000 18,308,000 20,835,000 18,570,000 20,482,000 21,162,000 21,872,000 19,523,000 19,297,000 17,608,000 17,905,000 17,797,000 17,708,000 14,634,000 16,887,000 16,274,000 16,488,000 16,205,000 14,522,000 13,788,000 14,210,000 14,068,000 13,994,000 14,115,000          
      operating income
    17,073,000 16,326,000 14,281,000 14,923,000 13,727,000 13,359,000 14,897,000 12,908,000 8,151,000 12,133,000 13,481,000 12,476,000 12,175,000 11,963,000 16,883,000 9,974,000 7,564,000 3,799,000 3,286,000 4,018,000 3,370,000 -146,000 5,221,000 2,855,000 3,724,000 -483,000 2,108,000 1,621,000 785,000 5,558,000 1,905,000 2,037,000 503,000 -2,123,000 4,164,000 709,000 1,512,000 2,422,000 5,038,000 5,125,000 3,653,000 3,289,000 4,265,000 2,830,000 942,000 -1,620,000 426,000 -280,000 -649,000 628,000 3,564,000 1,892,000 419,000 1,672,000 4,554,000 2,082,000 3,429,000 816,000 4,546,000 6,164,000 3,662,000 2,665,000 3,385,000 2,544,000 2,195,000 1,829,000 1,103,000 602,000 599,000 766,000 4,778,000 2,985,000 3,654,000 4,598,000 6,211,000 5,098,000 4,714,000 4,305,000 3,381,000 3,751,000 3,212,000 2,878,000 4,977,000 3,683,000 4,196,000 4,101,000 3,816,000 3,267,000 2,420,000 2,279,467 1,763,699 1,552,559 1,507,123 1,449,940 -6,611,012 -2,122,803 -10,818,332 -1,162,358 
      yoy
    24.38% 22.21% -4.14% 15.61% 68.41% 10.10% 10.50% 3.46% -33.05% 1.42% -20.15% 25.09% 60.96% 214.90% 413.79% 148.23% 124.45% -2702.05% -37.06% 40.74% -9.51% -69.77% 147.68% 76.13% 374.39% -108.69% 10.66% -20.42% 56.06% -361.80% -54.25% 187.31% -66.73% -187.65% -17.35% -86.17% -58.61% -26.36% 18.12% 81.10% 287.79% -303.02% 901.17% -1110.71% -245.15% -357.96% -88.05% -114.80% -254.89% -62.44% -21.74% -9.13% -87.78% 104.90% 0.18% -66.22% -6.36% -69.38% 34.30% 142.30% 66.83% 45.71% 206.89% 322.59% 266.44% 138.77% -76.92% -79.83% -83.61% -83.34% -23.07% -41.45% -22.49% 6.81% 83.70% 35.91% 46.76% 49.58% -32.07% 1.85% -23.45% -29.82% 30.42% 12.73% 73.39% 79.91% 116.36% 110.43% 60.57% 57.21% -126.68% -173.14% -113.93% -224.74%     
      qoq
    4.58% 14.32% -4.30% 8.71% 2.75% -10.32% 15.41% 58.36% -32.82% -10.00% 8.06% 2.47% 1.77% -29.14% 69.27% 31.86% 99.11% 15.61% -18.22% 19.23% -2408.22% -102.80% 82.87% -23.34% -871.01% -122.91% 30.04% 106.50% -85.88% 191.76% -6.48% 304.97% -123.69% -150.98% 487.31% -53.11% -37.57% -51.93% -1.70% 40.30% 11.07% -22.88% 50.71% 200.42% -158.15% -480.28% -252.14% -56.86% -203.34% -82.38% 88.37% 351.55% -74.94% -63.29% 118.73% -39.28% 320.22% -82.05% -26.25% 68.32% 37.41% -21.27% 33.06% 15.90% 20.01% 65.82% 83.22% 0.50% -21.80% -83.97% 60.07% -18.31% -20.53% -25.97% 21.83% 8.15% 9.50% 27.33% -9.86% 16.78% 11.61% -42.17% 35.13% -12.23% 2.32% 7.47% 16.80% 35.00% 6.17% 29.24% 13.60% 3.01% 3.94% -121.93% 211.43% -80.38% 830.72%  
      operating margin %
    13.06% 13.33% 12.49% 13.88% 13.14% 12.86% 14.18% 12.27% 7.57% 11.44% 12.02% 11.12% 10.95% 10.94% 15.97% 9.64% 7.99% 4.51% 4.15% 5.08% 4.36% -0.20% 7.14% 4.06% 5.07% -0.78% 3.25% 2.65% 1.19% 8.92% 2.90% 3.25% 0.92% -4.70% 9.23% 1.55% 3.31% 5.36% 9.99% 9.83% 7.28% 6.54% 7.56% 5.19% 1.77% -3.32% 0.83% -0.58% -1.41% 1.33% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% -Infinity% -Infinity% -Infinity% -Infinity% 
      other expense, net:
                                                                                                      
      interest expense
    -2,220,000 -2,303,000 -1,757,000 -932,000 -1,336,000 -2,294,000 -2,823,000 -3,234,000 -3,697,000 -5,661,000 -6,269,000 -6,603,000 -6,393,000 -5,971,000 -5,036,000 -5,297,000 -4,465,000 -4,903,000 -376,000 -371,000 -246,000 -402,000 -526,000 -900,000 -1,734,000 -432,000 -8,000  -2,000 -92,000 -13,000 -5,000 -4,000 -3,000 -3,000 -2,000 -10,000 -33,000 -65,000 -100,000        -4,000 -1,000  -5,000  -37,000  -8,000  -15,000  -7,000 -26,000 -27,000  -28,000 -26,000 -32,000  -55,000 -67,000 -50,000 -85,000 -84,000 -64,000 -12,000 -14,000 -27,000 -17,000 -18,000 -25,000                     
      other expense
    -44,000 -4,000 -10,750 -31,000 -43,000          -14,750 -96,000 139,000 -102,000 -57,250 -114,000 77,000 -192,000                                                                             
      total other expense
    -2,264,000 -2,307,000 -1,768,000 -963,000 -1,379,000 -2,263,000 -2,845,000 -3,248,000 -3,729,000 -15,409,000 -6,289,000 -6,588,000 -6,346,000 -5,954,000 -4,876,000 -5,392,000 -4,324,000 -5,000,000 -311,000 -482,000 -168,000 -594,000                                                                             
      income before income taxes
    14,809,000 14,019,000 12,513,000 13,960,000 12,348,000 11,096,000 12,052,000 9,660,000 4,422,000 -3,276,000 7,192,000 5,888,000 5,829,000 6,009,000 12,007,000 4,582,000 3,240,000 -1,201,000 3,001,000 3,536,000 3,202,000 -740,000 4,344,000 1,910,000 2,129,000 -920,000 2,587,000 1,652,000 1,184,000 5,722,000 177,750 2,664,000 10,000 -1,963,000         4,228,000 3,291,000 2,320,000 -1,194,000 926,000 -314,000 -579,000 764,000 3,629,000 1,891,000 870,000 1,848,000 4,405,000 1,961,000 3,496,000 1,035,000 4,529,000 5,821,000 3,481,000 2,684,000 3,537,000 2,596,000 2,554,000 1,832,000 894,000 1,369,000 994,000 1,025,000 4,918,000 3,697,000 4,662,000 5,638,000 7,222,000 5,953,000 5,473,000 5,076,000 3,964,000 4,326,000 3,766,000 3,211,000 3,197,250 3,989,000 4,508,000 4,291,000             
      income tax provision
    3,506,000 2,308,000 1,645,250 3,717,000 1,851,000 1,013,000 41,000 -42,000 428,000 -222,000 -169,750 -839,000 -70,000 230,000 -384,750 456,000 393,000             1,040,000 -1,529,000 43,000 367,000 2,606,000 -94,000 -694,000 148,000 765,000 1,144,000 532,000 1,155,000 381,000 1,243,000 795,000 874,000 -855,000 500,000 -213,000 -1,317,000 76,000 1,582,000 363,000 -130,000 618,000 1,943,000 -346,000 1,374,000 311,000 1,680,000 2,206,000 1,242,000 368,000 1,293,000 -1,216,000 868,000 633,000 -65,000 -24,000 279,000 9,000 1,319,000 1,712,000 1,565,000 1,968,000 1,646,000 -845,000 1,876,000 1,274,000 949,000 978,000 1,199,000 1,028,000 1,773,000 1,505,000 -4,291,000 1,330,000 1,127,000 978,000 676,000 705,903 145,146 527,444  395,628 -1,933,223 -1,051,338 -3,379,588 -310,435 
      net income
    11,303,000 11,711,000 9,981,000 10,243,000 10,497,000 10,083,000 11,863,000 9,702,000 3,994,000 -3,054,000 6,365,000 6,727,000 5,899,000 5,779,000 11,223,000 4,126,000 2,847,000 1,187,000 4,588,000 3,157,000 2,928,000 -307,000 4,433,000 1,766,000 2,004,000 208,000 2,286,000 1,648,000 1,342,000 4,682,000 3,608,000 2,621,000 -357,000 -4,569,000 4,343,000 1,335,000 1,331,000 2,357,000 3,844,000 4,277,000 2,137,000 6,450,000 2,985,000 2,496,000 1,446,000 -339,000 426,000 -101,000 738,000 688,000 2,047,000 1,528,000 1,000,000 1,230,000 2,462,000 2,307,000 2,122,000 724,000 2,849,000 3,615,000 2,239,000 2,316,000 2,244,000 3,812,000 1,686,000 1,199,000 959,000 1,393,000 715,000 1,016,000 3,599,000 1,985,000 3,097,000 3,670,000 5,576,000 6,798,000 3,597,000 3,802,000 3,015,000 3,348,000 2,567,000 2,183,000 3,421,000 2,484,000 8,799,000 2,961,000 2,885,000 2,394,000 1,738,000 1,647,107 1,805,005 1,212,816 2,504,367 -42,796,317 -4,355,761 -587,785 -7,334,801 -506,499 
      yoy
    7.68% 16.15% -15.86% 5.58% 162.82% -430.16% 86.38% 44.22% -32.29% -152.85% -43.29% 63.04% 107.20% 386.86% 144.62% 30.69% -2.77% -486.64% 3.50% 78.77% 46.11% -247.60% 93.92% 7.16% 49.33% -95.56% -36.64% -37.12% -475.91% -202.47% -16.92% 96.33% -126.82% -293.85% 12.98% -68.79% -37.72% -63.46% 28.78% 71.35% 47.79% -2002.65% 600.70% -2571.29% 95.93% -149.27% -79.19% -106.61% -26.20% -44.07% -16.86% -33.77% -52.87% 69.89% -13.58% -36.18% -5.23% -68.74% 26.96% -5.17% 32.80% 93.16% 133.99% 173.65% 135.80% 18.01% -73.35% -29.82% -76.91% -72.32% -35.46% -70.80% -13.90% -3.47% 84.94% 103.05% 40.12% 74.16% -11.87% 34.78% -70.83% -26.27% 18.58% 3.76% 406.27% 79.77% 59.83% 97.39% -30.60% -103.85% -141.44% -306.34% -134.14% 8349.44%     
      qoq
    -3.48% 17.33% -2.56% -2.42% 4.11% -15.00% 22.27% 142.91% -230.78% -147.98% -5.38% 14.04% 2.08% -48.51% 172.01% 44.92% 139.85% -74.13% 45.33% 7.82% -1053.75% -106.93% 151.02% -11.88% 863.46% -90.90% 38.71% 22.80% -71.34% 29.77% 37.66% -834.17% -92.19% -205.20% 225.32% 0.30% -43.53% -38.68% -10.12% 100.14% -66.87% 116.08% 19.59% 72.61% -526.55% -179.58% -521.78% -113.69% 7.27% -66.39% 33.97% 52.80% -18.70% -50.04% 6.72% 8.72% 193.09% -74.59% -21.19% 61.46% -3.32% 3.21% -41.13% 126.10% 40.62% 25.03% -31.16% 94.83% -29.63% -71.77% 81.31% -35.91% -15.61% -34.18% -17.98% 88.99% -5.39% 26.10% -9.95% 30.42% 17.59% -36.19% 37.72% -71.77% 197.16% 2.63% 20.51% 37.74% 5.52% -8.75% 48.83% -51.57% -105.85% 882.52% 641.05% -91.99% 1348.14%  
      net income margin %
    8.65% 9.56% 8.73% 9.53% 10.04% 9.71% 11.29% 9.22% 3.71% -2.88% 5.67% 5.99% 5.31% 5.29% 10.61% 3.99% 3.01% 1.41% 5.80% 3.99% 3.79% -0.42% 6.06% 2.51% 2.73% 0.33% 3.52% 2.69% 2.04% 7.51% 5.49% 4.18% -0.65% -10.11% 9.63% 2.92% 2.92% 5.22% 7.62% 8.20% 4.26% 12.83% 5.29% 4.58% 2.72% -0.70% 0.83% -0.21% 1.61% 1.45% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% 
      net income per common share:
                                                                                                      
      basic
    300 310 260 280 280 270 330 270 110 -80 180 190 160 160 320 120 80 30 140 90 90 -10 150 60 70 10 80 60 50 170 -22.5 100 -10 -170         120 100 60 -10 20  30 30 80 60 40 50 100 90 80 30 120 140 90 90 90 150 70 50 30 60 30 40 140 80 120 140 220 270 140 150 130 140 110 100                 
      diluted
    290 310 205 270 280 270 72.5 260 110 -80 125 180 160 160 310 120 80 30 130 90 90 -10 150 60 70 10 80 60 50 170 -22.5 90 -10 -170         120 100 60 -10 20  30 30 80 60 40 50 90 90 80 30 110 140 90 90 90 150 70 50 40 60 30 40 140 80 120 140 210 260 140 150 120 140 110 90                 
      weighted-average common shares:
                                                                                                      
      basic
    37,640,000 37,352,000 36,959,000 37,073,000 36,956,000 36,680,000 36,316,000 36,375,000 36,296,000 36,129,000 35,820,000 35,889,000 35,791,000 35,608,000 35,031,000 35,131,000 35,015,000 34,560,000 32,111,000 34,057,000 30,900,000 29,374,000 28,849,000 28,972,000 28,881,000 28,467,000 27,905,000 28,072,000 27,866,000 27,513,000 27,083,000 27,177,000 27,084,000 26,748,000 26,432,000 26,522,000 26,477,000 26,175,000 25,760,000 25,904,000 25,820,000 25,331,000 24,645,000 24,938,000 24,492,000 24,150,000 25,345,000 25,274,000 25,644,000 25,716,000 25,956,000 25,849,000 26,138,000 26,188,000 25,743,000 25,770,000 25,709,000 25,639,000  25,369,000 25,230,000   24,930,000 24,816,000   24,607,000 24,953,000                              
      diluted
    38,482,000 38,239,000 37,739,000 37,653,000 37,520,000 37,483,000 36,984,000 37,026,000 36,974,000 36,129,000 36,869,000 36,817,000 36,730,000 36,859,000 35,995,000 35,740,000 35,608,000 35,767,000 33,394,000 35,148,000 32,223,000 29,374,000 29,546,000 29,187,000 29,486,000 29,614,000 28,554,000 28,589,000 28,438,000 28,075,000 27,652,000 27,764,000 27,084,000 26,748,000 27,099,000 26,956,000 27,252,000 26,972,000 26,311,000 26,300,000 25,998,000 26,171,000 25,227,000 25,710,000 25,273,000 24,150,000 25,730,000 25,274,000 26,144,000 26,229,000 26,237,000 26,114,000 26,476,000 26,434,000 26,146,000 26,043,000 26,205,000 26,143,000  25,879,000 25,692,000   25,272,000 25,213,000   24,875,000 25,195,000                              
      debt issuance cost write-off
                                                                                                      
      other income
         31,000 -22,000 -14,000 -32,000 -26,000 -20,000 15,000 47,000 17,000           89,000 -236,000 311,000 -174,000 257,000 48,000 85,000 535,000 -527,000 -45,000 -134,000 -221,000 -143,000 574,000 -149,000 -359,000 -284,000 123,000 -117,000 419,000 1,324,000 388,000 456,000 -69,000 21,000 93,000 20,000 -59,000 438,000 124,000 -213,000 -192,000 8,000 147,000 -74,000 -378,000 -223,000  102,000 -16,000 301,000  -301,000 559,000 41,000 -236,000             202,250 306,000 312,000 190,000 -641,000 105,000 -6,000 73,543 -172,836 187,701 -93,710 15,343 -646,569 483,680 103,943 345,424 
      debt issuance cost write off
             -9,722,000                                                                                         
      restructuring charge
                  61,000 105,000  109,000  101,000 161,000 733,000 -12,000 91,000 38,000                102,000 651,000                                                         
      interest income
                  3,000 1,000 2,000 5,000 6,000 3,000 1,000  1,000 22,000 50,000 231,000 176,000 205,000 144,000 208,000 102,000 97,000 38,000 208,000 222,000 155,000 120,000 159,000 164,000 143,000 12,000 100,000 84,000 42,000 54,000 38,000 44,000 39,000 50,000 43,000 50,000 58,000 50,000 52,000 72,000 71,000 74,000 72,000 64,000 61,000 69,000  78,000 94,000 90,000  147,000 275,000 404,000 580,000 729,000 776,000 1,020,000 1,054,000 1,038,000 872,000 777,000 796,000                     
      income tax benefit
                     -2,388,000    -433,000                                                                       -1,090,954      
      income tax expense
                      -1,587,000 379,000 274,000  -89,000 144,000 125,000 -1,128,000 221,500 4,000 -158,000                                                                      
      other income, net:
                                                                                                      
      other (expense) income
                          -53,500 -67,000                                                                           
      total other income
                          -877,000 -945,000 -1,595,000 -437,000 479,000 31,000 399,000 164,000 174,000 627,000 -493,000 160,000 85,000 -68,000 -33,000 700,000 -50,000 -316,000 -272,000 223,000 -37,000 461,000 1,378,000 426,000 500,000 -34,000 70,000 136,000 65,000 -1,000 451,000 176,000 -149,000 -121,000 67,000 219,000 -17,000 -343,000 -181,000 19,000 152,000 52,000 359,000 3,000 -209,000 767,000 395,000 259,000     1,011,000 855,000 759,000 771,000                     
      restructuring reversal
                                 -67,000                                                                     
      services and solutions
                              9,799,500 14,030,000 13,667,000 11,501,000 12,345,000 11,025,000 7,203,000 6,743,000 4,224,000 5,079,000                                                               
      cost of services and solutions
                              4,582,000 6,137,000 6,214,000 5,977,000 6,543,000 6,007,000 4,287,000 3,443,000 1,171,000 2,968,000                                                               
      amortization of intangibles
                              546,000 719,000 725,000 740,000 529,500 741,000 770,000 607,000                                                                 
      restructuring (reversal) charge
                              -21,750 -20,000           186,750 -6,000                                                           
      restructuring charges
                                  111,000 190,000            -9,000 518,000     81,000                                                 
      hardware product
                                     38,454,000 40,881,000 40,660,000 41,766,000 43,173,000 48,575,000 50,547,000 48,732,000 48,247,000 52,455,000 50,001,000 48,108,000 44,933,000 46,994,000 43,303,000 40,560,000 41,989,000                                                 
      cost of hardware product
                                     19,210,000 21,156,000 20,286,000 21,489,000 22,438,000 24,284,000 24,988,000 24,283,000 24,710,000 26,816,000 25,729,000 25,498,000 23,112,000 23,875,000 21,587,000 20,012,000 20,263,000                                                 
      restructuring charges (reversals)
                                      628,750 2,515,000                                                               
      income from continuing operations, before income taxes
                                      4,249,000 641,000 1,479,000 3,122,000 4,988,000 4,809,000 3,381,000 3,512,000                                                         
      income from continuing operations
                                      4,343,000 1,335,000 1,331,000 2,357,000 3,844,000 4,277,000 2,226,000 3,131,000                                                         
      income from discontinued operations, after income taxes
                                            -89,000 3,319,000                                                         
      basic net income per common share:
                                                                                                      
      continuing operations
                                      160 50 50 90 140 170 90 120                                                     -0.113 -0.03 -0.39 -0.03 
      discontinued operations
                                             130                                                         
      diluted net income per common share:
                                                                                                      
      total
                                            80 250                                                         
      restructuring charges (reversal)
                                                  20,250                                                    
      restructuring (reversal) charges
                                                                                                      
      net sales
                                                      36,003,000 48,824,000 48,197,000 46,991,000 47,248,000 47,632,000 49,016,000 46,662,000 51,836,000 54,274,000 49,716,000 48,334,000 47,266,000 47,238,000 45,076,000 42,968,000 40,012,000 44,470,000 40,085,000 41,361,000 50,417,000 46,995,000 43,070,000 44,574,000 45,070,000 43,527,000 42,855,000 41,811,000 41,047,000 35,860,000 34,380,000 33,376,000 36,209,000 30,208,000 29,312,000 29,470,000 29,274,000 28,306,000 27,339,000 26,306,830 26,319,651 25,567,445 25,511,598 25,527,469 25,082,930 26,110,138 25,192,717 25,150,182 
      cost of sales
                                                      17,463,000 24,104,000 23,236,000 22,512,000 22,143,000 21,884,000 22,710,000 21,708,000 23,793,000 24,877,000 23,212,000 22,820,000 22,353,000 22,496,000 21,254,000 20,163,000 19,507,000 21,986,000 19,908,000 19,069,000 23,367,000 21,200,000 18,986,000 19,543,000 20,119,000 19,392,000 19,215,000 18,650,000 18,196,000 15,222,000 14,894,000 14,010,000 15,027,000 12,003,000 11,328,000 11,159,000 11,390,000 11,045,000 10,804,000 10,202,785 10,765,861 10,316,051 10,317,250 10,180,837 11,064,682 11,227,836 12,019,152 11,700,323 
      restructuring
                                                      -9,250  -37,000   963,000 60,000 236,000 224,000  -20,000  -88,000  -352,000                          -164,478 -168,940 -134,018 -132,138     
      amortization of purchased and core technology
                                                          285,000 444,000 523,000 524,000 527,000 642,000 853,000 848,000 883,000 1,024,000 1,074,000 1,092,000 1,094,000 1,047,000 1,008,000 1,044,000 1,110,000 938,000 907,000 1,136,000 1,132,000 1,132,000 1,129,000 1,148,000                     
      weighted-average common shares, basic
                                                              25,312,000   25,110,000 24,865,000   24,701,000 24,901,000   25,381,000 25,659,000 25,742,000 25,714,000 25,619,000 25,259,000 25,294,000 25,186,000 25,078,000 23,338,000 23,124,000 23,001,000 22,781,000 22,450,000 22,588,000 22,477,000 22,082,000 21,196,000 21,468,000 21,091,000 20,497,909 21,028,611 20,599,156 21,234,643 22,068,349 19,674,516 22,176,086 18,924,732 15,369,376 
      weighted-average common shares, diluted
                                                              25,819,000   25,445,000 25,154,000   24,979,000 25,183,000   25,679,000 26,242,000 26,079,000 26,312,000 26,593,000 26,121,000 26,152,000 25,959,000 25,983,000 24,080,000 23,904,000 23,687,000 23,486,000 23,371,000 23,296,000 23,645,000 23,309,000 22,031,000 22,224,000 22,005,000 21,276,303         
      restructuring costs
                                                                      488,250 1,953,000                               
      acquired in-process research and development
                                                                                      75,000 300,000           775,000    
      other income:
                                                                                                      
      acquired in-process research & development
                                                                           1,900,000                           
      total interest income
                                                                          690,000 712,000 1,008,000 1,040,000                         
      interest income, net:
                                                                                                      
      interest income and other
                                                                                  365,250 575,000 554,000 333,000                 
      net income per common share, basic
                                                                                      160 110 390  67.5 110 80          
      net income per common share, diluted
                                                                                      152.5 110 370  65 110 80          
      net income per common share, basic and diluted
                                                                                         130             
      gain from forgiveness of grant payable
                                                                                              254,629 231,786   2,135,534 -1,067,767   
      income before income taxes and cumulative effect of accounting change
                                                                                          4,012,000 3,372,000 2,414,000 2,353,010 1,950,151 1,740,260 1,413,413 1,465,283 -6,288,984 -1,639,123  -816,934 
      income before cumulative effect of accounting change
                                                                                          2,885,000 2,394,000 1,738,000 1,647,107 1,805,005 1,212,816 2,504,367 1,069,655 -4,355,761 -587,785 -7,334,801 -506,499 
      cumulative effect of accounting change
                                                                                                 -43,865,972     
      net income per common share, basic:
                                                                                                      
      net income per common share, diluted:
                                                                                                      
      gross margin
                                                                                             16,104,045 15,553,790 15,251,394 15,194,348 15,346,632 14,018,248 14,882,302 13,173,565 13,449,859 
      in-process research and development
                                                                                                      
      loss on sale of milan assets
                                                                                                     
      before cumulative effect of accounting change
                                                                                              0.055 0.06 0.12 0.05     
      net income per common share, assuming dilution:
                                                                                                      
      weighted-average common shares, assuming dilution
                                                                                              21,150,540 20,785,859 21,314,533 22,085,535 19,674,516 22,176,086 18,924,732 15,369,376 
      income before income taxes and cumulative
                                                                                                      
      effect of accounting change
                                                                                                    -10,714,389  
    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 2002-03-31 2001-12-31 
                                                                                                        
        assets
                                                                                                        
        current assets:
                                                                                                        
        cash and cash equivalents
      31,741,000 30,932,000 21,902,000 20,104,000 26,296,000 25,935,000 27,510,000 28,337,000 23,795,000 31,548,000 31,693,000 29,580,000 31,660,000 30,949,000 34,900,000 41,515,000 41,386,000 47,188,000 152,432,000 146,942,000 127,189,000 49,263,000 54,129,000 55,085,000 58,086,000 49,072,000 92,792,000 84,094,000 69,593,000 72,222,000 58,014,000 47,694,000 52,391,000 45,610,000 78,222,000 92,052,000 71,895,000 81,142,000 75,727,000 61,072,000 67,270,000 52,190,000 45,018,000 53,755,000 45,657,000 45,043,000 47,490,000 55,917,000 43,557,000 50,470,000 41,320,000 45,892,000 42,357,000 52,010,000 60,246,000 42,214,000 47,738,000 42,568,000 54,684,000 59,942,000 57,282,000 64,206,000 50,943,000 35,212,000 29,433,000 43,453,000 48,434,000 29,671,000 28,541,000 22,632,000 14,176,000 16,751,000 27,135,000 17,778,000 18,375,000 34,068,000 17,186,000 21,468,000 15,674,000 14,422,000 15,690,000 11,958,000 12,990,000 6,345,000 19,970,000 12,400,000 19,528,000 14,437,000 19,103,000 24,203,686  18,706,779 24,230,199 28,392,925  34,885,760 37,866,287 22,422,391 
        accounts receivable
      61,160,000 59,676,000 63,453,000 66,141,000 61,185,000 64,928,000 69,640,000 71,190,000 71,983,000 61,441,000 55,997,000 47,964,000 44,900,000 49,668,000 50,450,000 52,009,000 56,686,000 49,359,000 43,738,000 41,276,000 44,108,000 52,500,000 59,227,000 53,876,000 78,491,000 81,097,000 56,417,000 44,721,000 53,493,000 46,371,000 50,817,000 48,246,000 39,789,000 30,292,000 28,855,000 28,561,000 28,720,000 28,005,000 28,685,000 28,536,000 28,569,000 24,931,000 29,205,000 24,415,000 28,615,000 23,281,000 28,576,000 24,654,000 25,900,000 23,788,000 26,829,000 24,969,000 23,857,000 24,704,000 24,634,000 24,364,000 24,136,000 23,920,000 26,433,000 27,719,000 26,116,000 23,177,000 24,090,000 24,299,000 22,996,000 21,846,000 19,032,000 25,742,000 20,762,000 19,824,000 24,310,000 26,032,000 25,344,000 20,525,000 21,022,000 21,892,000 20,772,000 19,773,000 20,305,000 19,232,000 18,040,000 17,173,000 16,897,000 15,830,000 13,159,000 12,019,000 10,555,000 10,318,000 10,002,000 10,167,561  11,812,433 11,093,271 9,749,097  11,250,801 11,056,726 12,894,769 
        inventories
      44,766,000 39,567,000 38,911,000 35,439,000 38,601,000 50,184,000 53,357,000 56,665,000 62,192,000 67,590,000 74,396,000 83,605,000 83,065,000 80,993,000 73,223,000 61,687,000 51,672,000 51,874,000 43,921,000 47,263,000 51,407,000 54,757,000 51,568,000 46,550,000 43,280,000 47,380,000 39,764,000 41,796,000 44,035,000 47,036,000 41,644,000 41,782,000 39,670,000 31,119,000 30,238,000 33,008,000 30,519,000 24,338,000 26,276,000 25,957,000 25,684,000 30,115,000 31,877,000 34,690,000 33,881,000 33,364,000 31,247,000 30,483,000 30,592,000 30,479,000 26,140,000 25,296,000 25,799,000 25,360,000 24,435,000 26,302,000 25,010,000 25,221,000 23,986,000 24,906,000 25,758,000 27,124,000 26,550,000 27,817,000 25,987,000 25,245,000 26,619,000 29,234,000 34,212,000 35,157,000 30,240,000 28,529,000 26,804,000 26,647,000 26,130,000 25,305,000 23,472,000 24,636,000 21,911,000 19,090,000 18,793,000 18,651,000 18,527,000 17,554,000 11,215,000 12,566,000 11,231,000 11,263,000 10,211,000 11,118,502  10,816,312 10,339,329 11,609,559  13,467,403 16,000,784 16,371,010 
        income taxes receivable
      1,853,000 4,471,000 1,875,000 1,663,000 3,696,000       2,751,000 4,778,000 4,777,000  9,784,000                                                     608,000 1,395,000                             
        prepaid expenses and other current assets
      7,125,000 6,756,000 4,558,000 3,745,000 4,948,000 4,827,000 3,940,000                                                                                            
        total current assets
      146,645,000 141,402,000 130,699,000 127,092,000 134,726,000 145,874,000 154,447,000 164,519,000 166,384,000 165,378,000 166,198,000 167,354,000 169,066,000 170,241,000 166,208,000 169,557,000 167,840,000 156,702,000 246,658,000 246,314,000 234,431,000 167,262,000 170,058,000 166,462,000 188,367,000 185,035,000 192,547,000 177,922,000 175,167,000 173,690,000 163,044,000 146,039,000 140,301,000 140,048,000 174,360,000 176,490,000 173,592,000 192,015,000 195,645,000 186,022,000 176,930,000 165,124,000 160,185,000 156,371,000 155,638,000 142,890,000 147,681,000 151,896,000 153,780,000 160,727,000 149,304,000 149,886,000 138,811,000 158,597,000 173,569,000 165,222,000 165,092,000 152,789,000 162,234,000 156,736,000 149,571,000 147,813,000 143,702,000 135,904,000 131,771,000 129,559,000 122,655,000 122,473,000 121,462,000 130,940,000 133,169,000 129,074,000 142,072,000 138,545,000 137,599,000 130,019,000 119,083,000 112,202,000 106,625,000 109,605,000 102,112,000 95,057,000 90,713,000 84,501,000 110,800,000 110,869,000 105,268,000 101,929,000 93,478,000  83,785,147        
        property, equipment and improvements
      32,715,000 32,903,000 34,022,000 35,018,000 35,485,000 34,844,000 34,915,000 32,714,000 30,076,000 28,644,000 29,108,000 29,590,000 29,812,000 28,374,000 27,594,000 26,380,000 27,078,000 27,058,000 12,132,000 12,559,000 13,096,000 13,442,000 11,507,000 12,284,000 12,817,000 13,206,000 13,857,000 14,417,000 13,926,000 11,827,000 6,270,000 11,474,000 12,145,000 12,723,000 12,801,000 13,288,000 13,613,000 13,983,000 14,041,000 13,557,000 13,986,000 14,156,000 14,357,000 14,628,000 14,617,000 13,864,000 13,231,000 13,511,000 13,673,000 13,866,000 13,910,000 14,480,000 15,107,000 15,534,000 15,157,000 15,347,000 15,979,000 16,033,000 15,370,000 15,799,000 16,058,000 16,219,000 16,396,000 16,376,000 16,506,000 16,851,000 16,678,000 16,187,000 16,304,000 16,334,000 16,255,000 15,382,000 15,472,000 20,727,000 19,987,000 19,848,000 19,702,000 19,621,000 19,488,000 19,904,000 20,266,000 20,285,000 20,808,000 21,071,000 17,971,000 18,800,000 18,634,000 18,636,000 19,250,000 20,000,484 19,888,110 20,620,891 21,051,453 21,186,149 21,538,987 21,990,790 22,098,430 21,849,258 
        intangible assets
      374,579,000 343,519,000  236,979,000 242,066,000 247,211,000  258,868,000 264,883,000 270,921,000  283,288,000 289,441,000 295,663,000  308,814,000 315,797,000 322,794,000  114,982,000 113,542,000 117,392,000  125,229,000 129,250,000 130,973,000  32,791,000 34,807,000                                                                      
        goodwill
      411,357,000 392,094,000 392,872,000 343,038,000 341,669,000 341,234,000 342,774,000 341,916,000 342,022,000 342,424,000 341,593,000 342,292,000 341,862,000 341,573,000 340,477,000 341,708,000 341,645,000 342,498,000 225,522,000 221,331,000 227,533,000 212,366,000 210,135,000 206,693,000 207,350,000 214,804,000 153,422,000 153,952,000 154,049,000 153,578,000 154,535,000 154,565,000 155,982,000 149,333,000 131,995,000 131,069,000 129,921,000 111,116,000 109,448,000 109,880,000 110,707,000 110,244,000 102,097,000 102,497,000 101,742,000 102,674,000 103,398,000 104,329,000 104,045,000 103,918,000 103,569,000 102,611,000 102,473,000 103,391,000 86,209,000 85,544,000 86,114,000 85,607,000 86,012,000 86,605,000 86,527,000 85,752,000 86,210,000 85,190,000 85,587,000 86,500,000 86,558,000 86,837,000 83,122,000 83,598,000 86,578,000 82,831,000 67,320,000 66,995,000 66,817,000 65,642,000 65,610,000 65,941,000 65,841,000 38,612,000 38,530,000 38,495,000 38,675,000 40,542,000 5,816,000 5,816,000 5,816,000 5,816,000 5,816,000 5,816,241 3,854,462 3,854,462 3,854,462 3,854,462 45,835,631 46,507,985 46,438,784 10,599,734 
        operating lease right-of-use assets
      7,710,000 7,757,000 8,430,000 8,669,000 9,230,000 9,799,000 10,207,000 10,858,000 11,488,000 12,187,000 12,876,000 13,643,000 14,179,000 14,897,000 15,299,000 14,829,000 15,435,000 15,891,000 15,684,000 16,342,000 16,267,000 16,665,000 14,334,000 14,937,000                                                                           
        deferred tax assets
      456,000  5,131,000 18,660,000 16,581,000 15,636,000 16,141,000 7,857,000 6,760,000 5,192,000     3,764,000  8,000 8,000 439,000 160,000 962,000 566,000 389,000 427,000 426,000 424,000 7,330,000 5,343,000 5,236,000 5,503,000 6,665,000 3,665,000 3,576,000 6,237,000 9,211,000 8,047,000 6,974,000 6,644,000     3,379,000 3,072,000 3,388,000 3,206,000 3,221,000 3,464,000 3,435,000 3,499,000 3,174,000 3,151,000 3,472,000 3,449,000 3,389,000 2,719,000 2,571,000 2,595,000 2,610,000 2,891,000 3,362,000 3,346,000 3,344,000   2,392,000 2,415,000    2,100,000                            
        other non-current assets
      765,000 762,000 804,000 885,000 1,267,000 1,515,000 3,682,000 3,694,000 3,687,000 3,916,000 3,788,000 3,893,000 3,388,000 3,862,000 2,253,000 2,351,000 1,727,000 1,279,000 1,067,000 1,363,000 1,672,000 1,095,000 1,011,000 837,000 16,542,000 16,462,000 875,000 821,000 350,000                                                                      
        total assets
      974,227,000 918,437,000 922,646,000 770,341,000 781,024,000 796,113,000 815,075,000 820,426,000 825,300,000 828,662,000 835,531,000 840,060,000 847,748,000 854,610,000 853,895,000 863,639,000 869,530,000 866,230,000 619,531,000 613,051,000 607,503,000 528,788,000 528,682,000 526,869,000 554,752,000 560,904,000 398,698,000 385,246,000 383,535,000 381,727,000 371,125,000 360,226,000 359,336,000 347,508,000 345,189,000 343,702,000 339,679,000 331,479,000 336,166,000 331,637,000 323,549,000 316,266,000 300,360,000 293,757,000 290,162,000 287,251,000 290,459,000 297,732,000 297,550,000 303,742,000 299,953,000 296,866,000 295,596,000 298,477,000 293,084,000 288,166,000 290,368,000 281,943,000 283,895,000 285,268,000 277,333,000 271,167,000 266,965,000 263,895,000 261,996,000 260,924,000 258,948,000 259,845,000 252,879,000 263,232,000 271,416,000 269,615,000 263,040,000 253,849,000 251,826,000 243,664,000 234,273,000 229,367,000 225,321,000 190,314,000 184,695,000 179,430,000 177,631,000 177,438,000 163,715,000 154,661,000 150,465,000 148,010,000 141,290,000          
        liabilities and stockholders' equity
                                                                                                        
        current liabilities:
                                                                                                        
        accounts payable
      41,651,000 32,462,000 35,871,000 29,391,000 25,303,000 27,049,000 23,759,000 20,856,000 22,205,000 16,679,000 17,148,000 21,503,000 20,725,000 30,633,000 32,373,000 27,949,000 22,769,000 22,880,000 22,586,000 18,840,000 18,911,000 22,472,000 28,067,000 21,929,000 17,421,000 23,165,000 21,183,000 15,460,000 14,628,000 16,021,000 12,911,000 10,849,000 11,024,000 6,330,000 6,240,000 9,829,000 10,754,000 7,924,000 8,569,000 8,720,000 7,280,000 6,904,000 6,723,000 7,048,000 11,375,000 12,032,000 10,451,000 10,417,000 9,114,000 10,040,000 8,906,000 8,505,000 7,387,000 8,469,000 6,040,000 6,369,000 11,981,000 7,224,000 6,492,000 7,398,000 6,862,000 9,759,000 7,449,000 10,171,000 8,583,000 6,292,000 5,567,000 10,141,000 8,033,000 11,302,000 10,343,000 10,667,000 8,929,000 5,299,000 6,554,000 7,911,000 5,800,000 7,557,000 6,748,000 5,235,000 4,430,000 5,775,000 6,272,000 5,077,000 4,839,000 5,489,000 4,945,000 5,175,000 4,695,000 6,110,299 5,741,739 7,275,820 6,248,887 5,002,427 6,591,235 5,891,526 7,322,743 7,276,860 
        accrued compensation
      13,862,000 9,975,000 16,261,000 13,679,000 11,019,000 13,001,000 13,995,000 12,643,000 9,641,000 9,382,000 16,427,000 15,665,000 12,150,000 11,782,000 14,576,000 12,899,000 11,440,000 10,368,000 12,934,000 11,544,000 9,705,000 10,317,000 9,372,000 8,702,000 7,961,000 7,146,000 8,733,000 5,105,000 6,991,000 6,672,000 8,190,000 6,245,000 6,121,000 4,555,000 4,325,000 3,339,000 4,198,000 3,968,000 10,787,000 9,769,000 6,993,000 5,248,000 11,502,000 10,464,000 7,677,000 7,517,000 8,133,000 7,792,000 6,198,000 6,493,000 7,410,000 7,718,000 5,789,000 5,780,000 5,744,000 6,853,000 5,295,000 5,173,000 7,758,000 7,269,000 6,537,000 4,866,000  4,632,000 5,098,000 3,928,000  2,685,000                               
        unearned revenue
      55,906,000 54,698,000 40,671,000 33,569,000 36,711,000 36,333,000 30,556,000 30,468,000 32,157,000 31,235,000 25,274,000 24,164,000 22,576,000 20,414,000 19,803,000 18,172,000 21,266,000 22,136,000 13,589,000 13,047,000 14,393,000 11,979,000 7,691,000 4,962,000 8,107,000 6,415,000 5,025,000 5,031,000 6,576,000 7,812,000 2,579,000 3,710,000 4,339,000 4,135,000 1,343,000 1,709,000 1,636,000                                                              
        current portion of operating lease liabilities
      2,487,000 2,935,000 3,361,000 2,928,000 2,891,000 2,881,000 2,973,000 3,032,000 3,151,000 3,216,000 3,352,000 3,431,000 3,346,000 3,357,000 3,196,000 2,989,000 2,890,000 2,884,000 2,633,000 2,680,000 2,714,000 2,776,000 2,527,000 2,540,000                                                                           
        income taxes payable
        522,000  1,771,000 2,813,000 2,549,000 1,334,000  1,179,000 1,116,000 1,866,000 1,749,000 1,734,000 2,441,000 2,281,000 2,274,000 2,254,000 2,334,000 2,067,000 1,914,000 1,895,000 1,958,000 1,544,000 1,798,000 1,139,000 1,192,000 684,000 759,000 785,000 851,000 699,000 692,000 685,000 877,000 84,000 131,000 163,000 167,000  236,000 151,000 828,000 1,401,000 1,893,000 2,017,000 2,724,000 2,392,000 2,387,000 3,625,000     1,269,000 3,109,000 2,424,000 2,402,000 2,620,000 1,824,000 2,337,000 2,312,000 2,838,000 2,639,000 4,922,000 4,891,000 4,893,000 4,621,000   182,000 1,183,000 468,000 1,623,000 3,156,000 5,445,000 6,555,000 5,933,000 4,712,000 6,944,000 5,960,000 4,286,000 3,306,000 5,280,000 3,828,000 6,138,000 9,107,000 11,055,000 10,057,000 10,141,543 9,538,537 5,879,296 4,999,732 4,421,889 3,154,359 4,785,538 46,885 3,148,560 
        other current liabilities
      18,030,000 13,649,000 11,124,000 9,142,000 7,974,000 8,262,000 15,505,000 14,020,000 13,980,000 8,754,000 7,138,000 8,733,000 9,449,000 8,856,000 11,036,000 10,946,000 9,989,000 3,795,000 7,179,000 8,304,000 8,138,000 7,971,000 7,373,000 6,012,000 7,366,000 8,061,000 4,110,000 4,020,000 4,369,000                                                                      
        total current liabilities
      131,936,000 113,719,000 107,810,000 88,709,000 85,669,000 90,339,000 89,337,000 82,353,000 81,134,000 70,445,000 85,978,000 89,019,000 83,769,000 90,565,000 96,507,000 94,578,000 89,977,000 79,311,000 58,941,000 57,415,000 56,861,000 67,487,000 61,230,000 50,345,000 53,206,000 61,525,000 44,458,000 35,021,000 41,091,000 40,771,000 34,975,000 30,494,000 30,981,000 23,470,000 17,980,000 21,810,000 21,790,000 17,782,000 23,808,000 23,944,000 20,679,000 18,305,000 23,189,000 20,884,000 22,473,000 23,213,000 21,754,000 21,458,000 19,009,000 20,699,000 21,290,000 20,779,000 19,188,000 18,996,000 18,192,000 18,557,000 22,428,000 17,558,000 19,486,000 24,349,000 22,158,000 22,710,000 21,597,000 19,917,000 17,933,000 17,915,000 16,534,000 21,485,000 19,043,000 19,573,000 20,933,000 21,125,000 19,423,000 15,046,000 21,896,000 22,822,000 21,766,000 21,665,000 23,284,000 22,273,000 20,599,000 19,062,000 20,718,000 25,870,000 16,474,000 18,337,000 23,178,000 25,244,000 22,534,000  25,991,180    23,639,807    
        deferred tax liabilities
      3,275,000 175,000 164,000 1,310,000 1,305,000 1,303,000 1,308,000 1,815,000 1,815,000 1,817,000 1,812,000 3,171,000 6,928,000 10,572,000 9,666,000 15,417,000 15,222,000 14,794,000 13,493,000 18,662,000 18,150,000 17,823,000 17,171,000 18,934,000 18,934,000 18,585,000 261,000 273,000 317,000 566,000 334,000 422,000 455,000 486,000 534,000 504,000 532,000 575,000 616,000 602,000 690,000 720,000 135,000 151,000 182,000 37,000 272,000 288,000 330,000 376,000 415,000 444,000 489,000 576,000 630,000 637,000 710,000 741,000 813,000 986,000 1,083,000 1,196,000 1,457,000 2,558,000 3,408,000 4,071,000 4,331,000 4,914,000 5,387,000 6,130,000 7,582,000                            
        long-term debt
      143,040,000 134,951,000 159,152,000 40,085,000 70,018,000 94,952,000 123,185,000 151,618,000 171,751,000 194,684,000 188,051,000 194,556,000 214,062,000 218,568,000 222,448,000 240,702,000 260,208,000 275,340,000 45,799,000 45,670,000 45,541,000 43,483,000 58,980,000 74,477,000 104,973,000 105,470,000                                                                  4,768,605 5,490,908 5,329,740 4,988,591 5,727,916 5,074,051 5,371,312 
        operating lease liabilities
      8,364,000 8,198,000 8,671,000 9,323,000 10,041,000 10,756,000 11,228,000 11,945,000 12,567,000 13,333,000 13,989,000 14,793,000 15,519,000 16,334,000 16,978,000 16,824,000 17,625,000 18,225,000 18,368,000 19,072,000 18,842,000 19,371,000 16,193,000 16,799,000                                                                           
        other non-current liabilities
      18,334,000 8,941,000 7,511,000 6,478,000 5,820,000 5,230,000 6,233,000 7,298,000 6,081,000 4,004,000 2,905,000 5,072,000 5,542,000 6,909,000 4,342,000 6,915,000 3,720,000 2,274,000 8,079,000 4,694,000 7,043,000 1,087,000 1,650,000 1,465,000 17,478,000 17,870,000 3,809,000 4,192,000 530,000 392,000 510,000 608,000 676,000 681,000 654,000 717,000 740,000 828,000 776,000 856,000 736,000 809,000                                                         
        total liabilities
      308,272,000 269,233,000 286,569,000 148,834,000 175,806,000 205,438,000 234,040,000 257,372,000 275,673,000 286,587,000 295,043,000 308,477,000 327,569,000 344,682,000 352,382,000 376,717,000 389,026,000 392,198,000 147,014,000 147,580,000 148,351,000 151,146,000 157,182,000 163,564,000 196,389,000 204,589,000 49,720,000 40,170,000 42,697,000 46,717,000 40,845,000 36,804,000 37,308,000 28,892,000 26,045,000 32,116,000 33,276,000 29,371,000 36,137,000 36,694,000 33,143,000 30,750,000 25,422,000 23,114,000 25,029,000 25,867,000 25,161,000 24,380,000 21,850,000 24,814,000 25,687,000 24,604,000 23,140,000 22,807,000 22,227,000 22,417,000 25,682,000 20,885,000 23,179,000 28,040,000 25,988,000 26,655,000 26,409,000 28,519,000 29,751,000 30,445,000 29,362,000 34,611,000 32,765,000 36,904,000 39,482,000 33,959,000 29,434,000 24,579,000 28,921,000 29,262,000 29,110,000 29,849,000 31,491,000 23,345,000 22,345,000 21,523,000 24,094,000 27,643,000 16,474,000 18,420,000 23,386,000 25,587,000 22,990,000  26,676,162    29,648,074    
        commitments and contingencies
                                                                                                        
        stockholders' equity:
                                                                                                        
        preferred stock, .01 par value...
                                                                                                        
        common stock, .01 par value...
      443,000 442,000 436,000 436,000 436,000 434,000 430,000 429,000 429,000 427,000 425,000 424,000 423,000 422,000 420,000 417,000 415,000 414,000 407,000 405,000 404,000 361,000 355,000 354,000 354,000 352,000 346,000 345,000 345,000 341,000 338,000 337,000 336,000 335,000 330,000 330,000 330,000 328,000 325,000 324,000 323,000 322,000 315,000 315,000 315,000 307,000 307,000 306,000 306,000 306,000 303,000 301,000 301,000 300,000 293,000 292,000 292,000 291,000 291,000 289,000 288,000 288,000 287,000 286,000 286,000 284,000 284,000 284,000 283,000 283,000 283,000 283,000 283,000 283,000 281,000 280,000 279,000 278,000 277,000 259,000 258,000 257,000 255,000 254,000 254,000 252,000 247,000 245,000 243,000 235,976  231,543 231,543 231,541  231,541 231,523 164,272 
        additional paid-in capital
      450,977,000 444,988,000 437,391,000 432,582,000 428,041,000 424,725,000 420,413,000 415,483,000 411,759,000 407,330,000 403,735,000 398,845,000 394,036,000 389,390,000 385,244,000 380,083,000 376,579,000 372,797,000 370,699,000 367,253,000 364,604,000 285,536,000 279,741,000 276,960,000 274,780,000 272,393,000 266,567,000 264,225,000 262,392,000 258,010,000 255,936,000 253,037,000 251,366,000 249,591,000 245,528,000 244,273,000 242,836,000 241,115,000 237,492,000 236,058,000 234,699,000 233,544,000 227,367,000 226,102,000 224,873,000 219,419,000 218,689,000 217,720,000 216,657,000 215,296,000 211,982,000 210,248,000 208,795,000 207,441,000 199,495,000 198,185,000 197,107,000 195,707,000 194,580,000 192,326,000 190,478,000 188,824,000 185,427,000 184,284,000 183,470,000 181,650,000 181,282,000 180,190,000 179,394,000 178,557,000 177,614,000 176,687,000 175,684,000 174,463,000 172,156,000 170,049,000 167,762,000 166,165,000 164,782,000 141,649,000 140,617,000 138,862,000 136,513,000 136,216,000 135,750,000 133,642,000 128,538,000 126,890,000 125,389,000 120,037,982  117,577,384 118,020,281 118,664,678  120,805,381 121,227,452 70,921,194 
        retained earnings
      311,168,000 299,865,000 288,154,000 278,173,000 267,930,000 257,433,000 247,350,000 235,487,000 225,785,000 221,791,000 224,845,000 218,480,000 211,753,000 205,854,000 200,075,000 188,852,000 184,726,000 181,879,000 180,692,000 176,116,000 172,951,000 170,023,000 170,330,000 165,897,000 164,131,000 162,127,000 161,919,000 159,633,000 157,985,000 156,643,000 151,748,000 148,140,000 145,519,000 145,876,000 150,478,000 146,135,000 144,800,000 143,469,000 141,112,000 137,268,000 132,991,000 130,854,000 124,404,000 121,419,000 118,923,000 117,477,000 117,816,000 117,732,000 117,514,000 116,776,000 116,088,000 114,041,000 112,513,000 111,513,000 110,283,000 107,821,000 105,514,000 103,392,000 102,668,000 99,819,000 96,204,000 93,965,000 91,649,000 89,405,000 85,593,000 83,907,000 82,708,000 81,749,000 80,356,000 79,641,000 78,625,000 75,026,000 73,041,000 69,944,000 66,782,000 61,206,000 54,408,000 50,811,000 47,009,000 43,994,000 40,646,000 38,079,000 35,896,000 32,475,000 29,991,000 21,192,000 18,231,000 15,346,000 12,952,000 11,214,689  7,762,577 6,549,761 4,045,394  51,197,472 51,785,257 59,120,058 
        accumulated other comprehensive loss
      -24,294,000 -23,697,000 -23,794,000 -23,482,000 -24,909,000 -25,506,000 -23,744,000 -24,728,000 -24,663,000 -24,063,000 -27,011,000 -24,696,000 -24,587,000 -24,765,000 -26,054,000 -24,265,000 -22,906,000 -22,958,000 -22,746,000 -21,749,000 -22,212,000 -21,945,000 -23,817,000 -24,658,000 -25,339,000 -22,855,000 -25,515,000 -24,633,000 -25,168,000 -25,092,000 -23,526,000 -23,726,000 -20,610,000 -22,406,000 -22,659,000 -24,635,000 -27,175,000 -28,461,000 -24,691,000 -24,304,000 -23,036,000 -24,524,000 -22,613,000 -22,435,000 -24,009,000 -20,668,000 -18,277,000 -15,006,000 -15,389,000 -15,224,000 -15,590,000 -17,021,000 -17,140,000 -14,013,000 -13,725,000 -14,856,000 -12,319,000 -12,219,000 -10,457,000 -8,647,000 -8,845,000 -11,601,000 -9,589,000 -11,157,000 -9,392,000 -7,201,000 -6,527,000 -8,622,000 -11,513,000 -9,807,000                    -235,919  -490,884 -256,222 -221,980     
        treasury stock
      -72,339,000 -72,394,000 -66,110,000 -66,202,000 -66,280,000 -66,411,000 -63,414,000 -63,617,000 -63,683,000 -63,410,000 -61,506,000 -61,470,000 -61,446,000 -60,973,000 -58,172,000 -58,165,000 -58,310,000 -58,100,000 -56,535,000 -56,554,000 -56,595,000 -56,333,000 -55,109,000 -55,248,000 -55,563,000 -55,702,000 -54,339,000 -54,494,000 -54,716,000 -54,892,000 -54,216,000 -54,366,000 -54,583,000 -54,780,000 -54,533,000 -54,517,000 -54,388,000 -54,343,000 -54,209,000 -54,403,000 -54,571,000 -54,680,000 -54,535,000 -54,758,000 -54,969,000 -55,151,000 -53,237,000 -47,400,000 -43,388,000 -38,226,000 -38,517,000 -35,307,000 -32,013,000 -29,571,000 -25,489,000 -25,693,000 -25,908,000 -26,113,000 -26,366,000 -26,559,000 -26,780,000 -26,964,000 -27,218,000 -27,442,000 -27,712,000 -28,161,000 -28,161,000 -28,367,000 -28,406,000 -22,346,000 -22,691,000 -17,832,000 -18,236,000 -18,236,000 -18,435,000 -18,559,000 -18,866,000 -19,055,000 -19,178,000 -19,329,000 -19,482,000 -19,676,000 -19,766,000 -19,867,000 -19,967,000 -20,130,000 -20,270,000 -20,399,000 -20,554,000 -20,554,162  -21,319,425 -16,957,534 -17,740,224 -15,499,801 -16,353,441 -16,953,269 -17,610,314 
        total stockholders' equity
      665,955,000 649,204,000  621,507,000 605,218,000 590,675,000  563,054,000 549,627,000 542,075,000  531,583,000 520,179,000 509,928,000  486,922,000 480,504,000 474,032,000  465,471,000 459,152,000 377,642,000  363,305,000 358,363,000                                                                          
        total liabilities and stockholders' equity
      974,227,000 918,437,000  770,341,000 781,024,000 796,113,000  820,426,000 825,300,000 828,662,000  840,060,000 847,748,000 854,610,000  863,639,000 869,530,000 866,230,000  613,051,000 607,503,000 528,788,000  526,869,000 554,752,000                                                                          
        identifiable intangible assets
        350,688,000    252,909,000    277,084,000    302,064,000    118,029,000    121,248,000    30,667,000   36,772,000 39,320,000 41,778,000 44,301,000 34,469,000 11,800,000 12,529,000 13,164,000 4,299,000 4,041,000 4,423,000 4,795,000 5,061,000 4,179,000 4,789,000 5,348,000 6,061,000 6,785,000 7,557,000 8,309,000 9,050,000 9,728,000 11,021,000 11,938,000 13,021,000 10,629,000 11,192,000 12,278,000 13,199,000 14,360,000 15,630,000 16,869,000 18,187,000 19,851,000 21,239,000 22,895,000 25,004,000 26,877,000 28,900,000 28,293,000 30,079,000 34,032,000 32,951,000 21,032,000 22,416,000 24,214,000 25,971,000 27,759,000 29,553,000 31,341,000 21,152,000 22,874,000 24,587,000 26,342,000 26,338,000 11,789,000 13,043,000 14,417,000 15,709,000 17,011,000 18,384,641 19,748,363 20,517,139 22,240,338 23,970,198 25,850,664 27,554,183 28,262,117 11,258,453 
        liabilities and stockholders’ equity
                                                                                                        
        stockholders’ equity:
                                                                                                        
        total stockholders’ equity
        636,077,000    581,035,000    540,488,000    501,513,000    472,517,000    371,500,000   356,315,000 348,978,000 345,076,000 340,838,000 335,010,000 330,280,000 323,422,000 322,028,000 318,616,000 319,144,000 311,586,000 306,403,000 302,108,000 300,029,000 294,943,000 290,406,000 285,516,000 274,938,000 270,643,000 265,133,000 261,384,000 265,298,000 273,352,000 275,700,000 278,928,000 274,266,000 272,262,000 272,456,000 275,670,000 270,857,000 265,749,000 264,686,000 261,058,000 260,716,000 257,228,000 251,345,000 244,512,000 240,556,000 235,376,000 232,245,000 230,479,000 229,586,000 225,234,000 220,114,000 226,328,000 231,934,000 235,656,000 233,606,000 229,270,000 222,905,000 214,402,000 205,163,000 199,518,000 193,830,000 166,969,000 162,350,000 157,907,000 153,537,000 149,795,000 147,241,000 136,241,000 127,079,000 122,423,000 118,300,000  105,863,422        
        total liabilities and stockholders’ equity
        922,646,000    815,075,000    835,531,000    853,895,000    619,531,000    528,682,000   560,904,000 398,698,000 385,246,000 383,535,000 381,727,000 371,125,000 360,226,000 359,336,000 347,508,000 345,189,000 343,702,000 339,679,000 331,479,000 336,166,000 331,637,000 323,549,000 316,266,000 300,360,000 293,757,000 290,162,000 287,251,000 290,459,000 297,732,000 297,550,000 303,742,000 299,953,000 296,866,000 295,596,000 298,477,000 293,084,000 288,166,000 290,368,000 281,943,000 283,895,000 285,268,000 277,333,000 271,167,000 266,965,000 263,895,000 261,996,000 260,924,000 258,948,000 259,845,000 252,879,000 263,232,000 271,416,000 269,615,000 263,040,000 253,849,000 251,826,000 243,664,000 234,273,000 229,367,000 225,321,000 190,314,000 184,695,000 179,430,000 177,631,000 177,438,000 163,715,000 154,661,000 150,465,000 148,010,000 141,290,000          
        current portion of long-term debt
                15,523,000 15,523,000 15,523,000 15,523,000 15,523,000 15,523,000 15,523,000 11,148,000    1,972,000 1,972,000 1,972,000 1,972,000 1,972,000                                                                  775,877 766,578 919,061 891,220 361,258 318,284 244,315 
        other current assets
             8,327,000 8,414,000 4,799,000 4,112,000 3,454,000 4,663,000 3,854,000 3,871,000 4,562,000 7,358,000 8,281,000 6,567,000 10,833,000 11,727,000 10,742,000 5,134,000 10,951,000 8,510,000 7,486,000 3,574,000 5,057,000 5,549,000                                                                      
        contingent consideration on acquired businesses
                     6,100,000 6,100,000 6,100,000 20,000    4,228,000 4,228,000 10,379,000 14,766,000 5,407,000 5,405,000 8,527,000 5,944,000 5,890,000 4,440,000 3,759,000 2,411,000  1,147,000 1,234,000 8,819,000                                                             
        income taxes receivables
                      10,738,000                                                                                  
        contingent consideration on acquired business
                         3,000,000 3,000,000 10,000,000             6,000,000   1,841,000 513,000 726,000 850,000 833,000                                                         
        contingencies
                                                                                                        
        marketable securities
                                 2,254,000 2,497,000 4,247,000 4,736,000 4,763,000 4,757,000 28,204,000 32,015,000 17,230,000 36,081,000 51,939,000 58,382,000 63,137,000 48,114,000 50,202,000 47,191,000 37,527,000 39,220,000 32,624,000 32,898,000 32,329,000 45,035,000 47,341,000 47,006,000 44,806,000 37,401,000 49,512,000 58,372,000 66,282,000 62,320,000 54,130,000 51,524,000 38,483,000 34,135,000 27,392,000 36,634,000 42,963,000 47,290,000 33,124,000 22,311,000 32,977,000 32,589,000 46,493,000 59,337,000 52,877,000 58,020,000 68,863,000 67,111,000 43,898,000 52,702,000 40,005,000 43,207,000 51,442,000 44,317,000 41,793,000 37,184,000 38,303,000 60,090,000 68,556,000 59,639,000 60,901,000 49,008,000          
        assets held for sale
                                    5,220,000                                                                    
        other
                                   3,814,000 2,613,000 3,554,000 3,694,000 4,823,000 3,032,000 3,651,000 4,399,000 4,623,000 3,578,000 4,338,000 4,326,000 4,734,000 3,515,000 2,912,000 4,877,000 5,372,000 4,249,000 5,049,000 5,261,000 5,150,000 4,835,000 5,772,000 5,925,000 3,562,000 2,493,000 3,341,000 3,317,000 4,355,000 2,997,000 2,795,000 2,918,000 2,568,000 2,141,000 5,613,000 6,065,000 3,499,000 3,844,000 4,849,000 4,750,000 5,439,000 3,006,000 4,885,000 4,769,000 4,732,000 2,865,000 4,856,000 4,951,000 6,320,000 2,861,000 5,419,000 5,272,000 5,482,000 2,223,000 6,469,000 6,366,000 5,328,000 4,315,000 5,010,000 5,154,000 5,843,462 1,039,820 4,836,993 5,322,649 5,885,973 1,301,034 5,947,701 5,583,748 5,655,915 
        receivable from sale of business
                                        1,998,000 1,988,000 1,978,000 1,968,000 2,997,000 2,982,000 2,967,000 2,952,000                                                         
        marketable securities, long-term
                                     2,243,000 2,489,000 4,247,000 4,753,000 2,011,000 2,262,000 3,275,000 3,541,000 7,321,000 7,292,000 11,524,000 13,626,000 9,471,000 7,550,000 14,600,000 11,541,000 12,338,000 10,804,000 9,983,000 17,389,000 13,108,000 22,105,000 3,278,000 2,016,000 5,162,000 5,567,000 9,511,000 1,603,000 6,733,000 4,507,000   4,307,000 4,267,000 1,951,000  4,261,000 2,507,000 1,119,000  7,921,000 15,682,000 4,246,000 2,081,000         4,000,000 7,545,000 2,000,000 2,500,000            
        accrued warranty
                                    1,172,000 1,295,000 1,348,000 1,164,000 987,000   1,025,000 1,033,000 1,135,000 944,000 968,000     862,000 900,000 972,000 1,013,000 1,063,000 1,132,000 925,000 935,000 1,021,000 998,000  1,007,000      909,000 965,000 952,000  1,020,000                               
        accrued professional fees
                                    1,367,000 1,019,000 896,000 793,000 928,000  1,134,000                 986,000          1,489,000                                   
        accrued restructuring
                                    453,000 666,000 636,000 1,631,000 1,656,000 2,302,000                                                               
        current assets of discontinued operations
                                                                                                        
        non-current assets of discontinued operations
                                                                                                        
        current liabilities of discontinued operations
                                                                                                        
        non-current liabilities of discontinued operations
                                                                                                        
        other noncurrent liabilities
                                                552,000 678,000 481,000 600,000 411,000 242,000 124,000 114,000 79,000 97,000 100,000 107,000 111,000 114,000 120,000 184,000 260,000 342,000 410,000 437,000 517,000 517,000 626,000 731,000 792,000 803,000 791,000 942,000                             
        accrued legal settlement
                                                          1,525,000                                              
        deferred payment on acquisition
                                                                 2,993,000 2,966,000 2,940,000 2,914,000   2,993,000 2,966,000 2,940,000 2,913,000 5,625,000 5,575,000                            
        accrued expenses:
                                                                                                        
        compensation
                                                                    5,850,000    3,275,000  3,840,000 4,045,000 5,981,000 5,015,000 5,545,000 4,133,000 7,080,000 5,523,000 5,309,000 3,771,000 5,851,000 4,223,000 3,852,000 3,141,000 5,308,000 5,320,000 3,918,000 2,953,000 4,839,000 4,401,000 3,482,000          
        warranty
                                                                    877,000    970,000  1,143,000 1,230,000 1,214,000                            
        restructuring
                                                                     202,000 225,000 636,000 721,000 1,519,000                               
        capital lease obligations, net of current portion
                                                                         2,000 2,000 9,000 78,000 135,000 179,000 263,000 358,000 444,000 532,000 625,000 725,000 817,000 930,000 1,040,000 1,181,000                
        deferred payments on acquisition
                                                                        2,812,000                                
        capital lease obligations, current portion
                                                                         32,000 204,000 267,000 267,000 278,000 380,000 381,000 379,000 375,000 376,000 378,000  406,000 409,000 411,000                 
        deferred revenue
                                                                            353,000    190,000    274,000 293,000 56,000 392,000 370,000 265,000 262,000 493,000 896,000 1,210,000 1,058,000 1,075,660    875,175     
        deferred gain on building sale — leaseback
                                                                            956,000 1,120,000 1,194,000                          
        accumulated other comprehensive income
                                                                            -1,897,000 1,492,000 2,834,000 2,816,000 2,121,000 1,426,000 1,580,000 1,319,000 940,000 396,000 311,000 385,000 639,000 717,000 1,213,000 1,285,000 333,000 357,000 306,000       -13,581 207,391 114,286 
        income taxes payable — long-term
                                                                             3,983,000 3,990,000 3,990,000                         
        net deferred tax liabilities
                                                                             7,596,000 4,648,000 5,280,000 6,667,000 5,996,000 6,812,000 7,559,000 7,482,000 255,000 816,000 1,421,000 2,195,000 496,000  83,000 208,000 343,000 456,000 570,586 684,982        
        net deferred tax assets
                                                                                2,096,000    2,667,000     17,000 4,728,000 3,403,000 3,013,000 5,071,000 4,924,000 4,534,463 4,223,682 2,745,059 2,063,075      
        capital lease obligations, current portion, and short-term borrowings
                                                                                    381,000    414,000                
        deferred tax assets, current
                                                                                        2,892,000                
        short-term loan
                                                                                         5,025,000               
        capital lease obligation, net of current portion
                                                                                         421,000               
        deposit on business acquisition
                                                                                          4,400,000              
        short-term borrowing
                                                                                               2,147,247 1,982,716        
        unearned stock compensation
                                                                                             -16,000 -36,000 -63,578  -108,456 -151,862 -184,947 -327,310 -464,878 -517,505  
        restructuring accruals
                                                                                               10,610 16,997 199,870 446,939 1,207,301 2,503,820    
        stockholders’ equity: - sum
                                                                                                 125,080,620 124,545,363 122,719,633  172,220,813 173,451,623 130,319,810 
        borrowing under line of credit agreements
                                                                                                   733,810     
        net deferred income taxes
                                                                                                   25,556 1,019,676  120,883 1,712,955 
        borrowings under line of credit agreements
                                                                                                     1,532,330 522,600 451,600 
        restructuring reserves
                                                                                                     12,801 44,607 276,403 
        net long term deferred income taxes
                                                                                                     62,722   
      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 2019-06-30 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 2014-03-31 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 2003-06-30 2003-03-31 2002-12-31 2002-06-30 2002-03-31 2001-12-31 
                                                                                                       
          operating activities:
                                                                                                       
          net income
        11,303,000 11,711,000 9,981,000 10,243,000 10,497,000 10,083,000 11,863,000 9,702,000 3,994,000 -3,054,000 6,365,000 6,727,000 5,899,000 5,779,000 11,223,000 4,126,000 2,847,000 1,187,000 4,588,000 3,157,000 2,928,000 -307,000 4,433,000 1,766,000 2,004,000 208,000 2,286,000 1,648,000 1,342,000 4,682,000 3,608,000 2,621,000 -357,000 -4,569,000 4,343,000 1,335,000 1,331,000 2,357,000 3,844,000 4,277,000 2,137,000 6,450,000 2,985,000 2,496,000 1,446,000 -339,000 426,000 1,426,000 688,000 2,047,000 1,528,000 1,000,000 1,230,000 2,462,000 2,307,000 2,122,000 724,000 2,849,000 3,615,000 2,239,000 2,316,000 2,244,000 3,812,000 1,686,000 1,199,000 959,000 1,393,000 715,000 1,016,000 3,599,000 1,985,000 3,097,000 3,670,000 5,576,000 6,798,000 3,597,000 3,802,000 3,015,000 3,348,000 2,567,000 2,183,000 3,421,000 2,484,000 8,799,000 2,961,000 2,885,000 2,393,000 1,737,893 1,647,107       
          adjustments to reconcile net income to net cash from operating activities:
                                                                                                       
          depreciation of property, equipment and improvements
        3,251,000 3,199,000 3,113,000 3,061,000 2,927,000 2,735,000 2,534,000 2,194,000 1,970,000 1,813,000 1,756,000 1,752,000 1,596,000 1,649,000 1,651,000 1,701,000 1,739,000 1,553,000 1,132,000 1,047,000 1,075,000 1,089,000 1,073,000 1,183,000 1,120,000 1,169,000 1,235,000 1,126,000 1,084,000 1,133,000 695,000 734,000 695,000 711,000 713,000 738,000 793,000 656,000 654,000 683,000 681,000 724,000 779,000 725,000 693,000 752,000 863,000 1,828,000 897,000 910,000 846,000 857,000 848,000 856,000 877,000 822,000 784,000 772,000 781,000 740,000 713,000 647,000 668,000 669,000 665,000 682,000 696,000 613,000 590,000 594,000 601,000 692,000 601,000 575,000 615,000 618,000 645,000 762,000 677,000 659,000 613,000 585,000 549,000 595,000 566,000 552,000 585,000         
          amortization
        7,934,000 7,307,000 5,968,000 5,307,000 5,302,000 5,832,000 6,181,000 6,171,000 6,163,000 6,591,000 6,754,000 6,747,000 6,745,000 6,957,000                                                                                  
          stock-based compensation
        4,507,000 3,987,000  3,874,000 3,944,000 3,560,000  3,514,000 3,473,000 3,106,000  3,519,000 3,465,000 2,868,000 2,176,000 2,143,000 2,242,000 2,017,000 1,804,000 2,109,000 2,477,000 1,745,000 1,914,000 1,882,000 1,841,000 1,600,000 1,475,000 1,473,000 1,293,000 1,414,000 1,256,000 1,220,000 1,325,000 1,053,000 1,157,000 1,174,000 1,155,000 1,173,000 991,000 944,000 903,000 816,000 1,039,000 1,040,000 1,038,000 1,184,000 1,170,000 2,070,000 1,023,000 867,000 992,000 959,000 955,000 929,000 912,000 955,000 931,000 882,000 849,000 842,000 871,000 768,000 779,000 826,000 998,000 828,000 848,000 874,000 968,000 995,000 926,000 904,000 872,000    765,000 547,000 579,000 632,000 531,000               
          deferred income tax expense
        -248,000 5,142,000  -2,075,000                                                                                            
          other
        10,000 -300,000 -2,000 15,000 27,000 2,000 277,000 2,000 -2,168,000 349,000 1,292,000 -2,205,000 159,000 -52,000 -104,000 34,000 -147,000 25,000 -42,000 92,000 -126,000 118,000 403,000 -87,000 -111,000 161,000 -287,000 247,000 -229,000 113,000 133,000 -96,000 -27,000 57,000 -147,000 87,000 63,000 -12,000 -23,000 -93,000 142,000 40,000 168,000 -54,000 -21,000 -6,000 27,000 46,000 102,000 24,000 198,000 -345,000 38,000 94,000 36,000 157,000 -274,000 93,000 164,000 -395,000 401,000 -1,132,000 1,162,000 194,000 -197,000 -163,000 -107,000 -72,000 112,000  70,000 -10,000 162,000  -146,000 -125,000 289,000 518,000 97,000 -390,000 -143,000 533,000 -312,000 18,000 -185,000 331,000 -74,000         
          changes in operating assets and liabilities
        14,723,000 4,580,000  3,528,000 4,532,000 7,007,000  4,444,000 -5,060,000 448,000  5,413,000 -4,399,000 -18,320,000  2,654,000 -13,441,000 -23,831,000  7,973,000 802,000 -5,631,000  21,609,000 122,000 -28,651,000  9,150,000 -6,853,000 -1,540,000  -12,397,000 -8,423,000 -3,285,000  -5,256,000 -1,851,000 -7,622,000  2,881,000 2,883,000 -4,369,000  3,312,000 -9,769,000 2,310,000  -9,681,000 -3,805,000  -139,000 -2,348,000 -1,755,000  -3,147,000 887,000 -3,607,000  990,000 -2,237,000 -607,000  -3,572,000 730,000 -445,000  -339,000 -2,006,000 -5,688,000                  1,363,000         
          net cash from operating activities
        41,480,000 35,626,000 28,001,000 23,953,000 26,286,000 29,719,000 26,435,000 24,930,000 13,055,000 18,672,000 8,947,000 18,197,000 6,927,000 2,680,000 22,286,000 19,458,000 5,881,000 -9,885,000 15,639,000 20,787,000 12,985,000 8,312,000 15,325,000 31,836,000 9,384,000 -22,067,000 6,436,000 16,326,000 91,000 6,111,000 6,066,000 -3,863,000 -3,653,000 -1,328,000 2,933,000 419,000 1,158,000 -2,035,000 6,506,000 9,095,000 7,933,000 3,555,000 5,078,000 7,436,000 -3,783,000 5,343,000 -736,000 -3,190,000 -337,000 3,640,000 4,758,000 1,062,000 2,288,000 6,168,000 2,851,000 5,866,000 242,000 5,671,000 8,648,000 2,772,000 4,748,000 3,770,000 3,370,000 5,040,000 3,915,000 11,413,000 5,071,000 1,188,000 -1,986,000 9,043,000 5,694,000 5,316,000 4,017,000 7,704,000 7,406,000 8,117,000 3,152,000 6,585,000 5,680,000 5,831,000 2,340,000 6,815,000 6,816,000 7,185,000 -2,760,000 5,557,000 6,024,000         
          capital expenditures
        -878,000 -745,000 -482,000 -1,024,000 -618,000 -685,000 -944,000 -582,000 -526,000 -302,000 -503,000 -1,100,000 -1,919,000 -980,000 2,244,000 -2,595,000 -1,222,000 -470,000 -612,000 -89,000 -341,000 -1,229,000 -206,000 -259,000 -238,000  -735,000 -1,241,000 -4,658,000 -178,000 -332,000 -480,000 -593,000 -391,000 -659,000 -1,145,000 -375,000 -664,000 -545,000 -612,000 -853,000 -1,566,000 -1,469,000 -702,000 -1,921,000 -975,000 -471,000 -335,000 -653,000 -1,427,000 -950,000 -353,000 -1,026,000 -1,624,000 -570,000 -700,000 -721,000 -638,000 -565,000 -904,000 -1,546,000 -661,000 -823,000 -843,000 -1,858,000 -659,000 -731,000 -1,177,000 -570,000 -843,000 -798,000 -688,000 -635,000 -259,000 -557,000 -439,000 -137,000 -196,000 -553,000 -290,000         
          free cash flows
        40,602,000 34,881,000 27,519,000 22,929,000 25,668,000 29,034,000 25,491,000 24,348,000 12,529,000 18,370,000 8,444,000 17,097,000 5,008,000 1,700,000 24,530,000 16,863,000 4,659,000 -10,355,000 15,027,000 20,698,000 12,644,000 7,083,000 15,119,000 31,577,000 9,146,000  5,701,000 15,085,000 91,000 1,453,000 6,066,000 -4,041,000 -3,985,000 -1,808,000 2,933,000 -174,000 767,000 -2,694,000 5,361,000 8,720,000 7,269,000 3,010,000 4,466,000 6,583,000 -5,349,000 3,874,000 -1,438,000 -5,111,000 -1,312,000 3,169,000 4,423,000 409,000 861,000 5,218,000 2,498,000 4,840,000 -1,382,000 5,101,000 8,648,000 2,072,000 4,027,000 3,132,000 3,370,000 4,475,000 3,011,000 9,867,000 4,410,000 365,000 -2,829,000 7,185,000 5,035,000 4,585,000 2,840,000 7,134,000 6,563,000 7,319,000 2,464,000 6,585,000 5,680,000 5,196,000 2,081,000 6,258,000 6,377,000 7,048,000 -2,956,000 5,004,000 5,734,000         
          investing activities:
                                                                                                       
          acquisition of businesses, net of cash acquired
        -49,436,000 524,000             -1,000 -31,000 71,000 -347,593,000 -12,796,000 783,000     -136,098,000     330,000 -16,504,000 -40,084,000 -117,000                                                            
          purchase of property, equipment, improvements and certain other intangible assets
        -638,000 -457,000 -482,000 -1,013,000 -558,000 -577,000 -944,000 -479,000 -511,000 -292,000 -503,000 -987,000 -1,892,000 -963,000 2,244,000 -2,554,000 -1,210,000 -454,000 -612,000 -358,000 -510,000 -777,000 -206,000 -259,000 -238,000 -196,000 -735,000 -1,254,000           -1,145,000 -375,000 -664,000 -545,000 -612,000 -853,000 -1,566,000 -1,469,000 -702,000 -1,921,000 -975,000 -471,000 -335,000 -653,000 -1,427,000 -950,000 -353,000 -1,026,000 -1,624,000 -570,000    -638,000    -1,546,000 -661,000 -823,000 -843,000 -1,858,000 -659,000 -731,000 -1,177,000 -570,000 -843,000 -798,000 -688,000   -635,000 -259,000 -557,000 -439,000 -137,000 -196,000 -553,000 -290,000 -78,338 -371,662       
          proceeds from sale of property, equipment, improvements and certain other intangible assets
        300,000      1,000                                                                                        
          net cash from investing activities
        -50,074,000 367,000 -146,184,000 -1,013,000 -558,000 -577,000 -944,000 -478,000 1,717,000 -292,000 -503,000 -987,000 -1,892,000 -963,000 2,243,000 -2,585,000 -1,139,000 -348,047,000 -13,408,000 425,000 -7,605,000 -777,000 -206,000 -259,000 -238,000 -136,294,000 1,564,000 -1,006,000 -3,810,000 8,763,000 2,462,000 61,000 8,381,000 -34,241,000 -17,735,000 18,401,000 -11,850,000 7,441,000  -15,407,000 5,745,000 -1,512,000  -691,000 -29,000 -4,283,000  6,700,000 6,134,000 -7,057,000 1,493,000 -7,429,000 -6,746,000 10,150,000 -7,515,000 -1,609,000 -11,980,000 -11,604,000 -7,325,000 -11,984,000 8,514,000 10,082,000 3,396,000 -20,099,000 -8,546,000 6,922,000 -4,386,000 11,702,000 11,048,000 -5,594,000 -15,145,000 4,778,000 -6,409,000 -24,931,000 7,974,000 -13,491,000 1,733,000 -7,890,000 -7,286,000 -3,159,000 -4,868,000 4,534,000 -24,372,000 -1,616,000 -8,613,000 -1,791,000 -12,183,000         
          financing activities:
                                                                                                       
          proceeds from long-term debt
              214,062,000     350,000,000 -1,000   9,018,000 110,000,000                                                                      
          payments on long-term debt
        -26,000,000 -24,000,000 -31,000,000 -30,000,000 -25,000,000 -28,300,000 -28,500,000 -20,200,000 -23,000,000 -233,025,000 -7,000,000 -20,000,000 -5,000,000 -4,375,000 -21,068,000 -20,000,000 -11,251,000 -95,799,000 1,000 -15,625,000 -15,625,000 -39,643,000                                                                        
          proceeds from stock option plan transactions
        944,000 3,311,000 428,000 366,000 948,000 1,783,000 2,026,000 8,000 719,000 225,000 1,310,000 944,000 800,000 872,000 2,766,000 1,141,000 1,371,000 4,227,000 1,501,000 404,000 2,676,000 3,944,000 839,000 339,000 564,000 4,160,000 820,000 303,000 3,089,000 662,000 1,589,000 444,000 455,000 2,972,000 238,000 18,000 459,000 2,787,000 459,000 465,000 515,000 5,752,000 227,000 326,000 5,997,000 9,000 353,000 3,209,000 2,813,000 1,022,000 581,000 421,000 169,000 472,000 79,000 371,000 150,000 1,014,000 720,000 676,000 443,000     298,000 5,000 65,000 55,000 20,000 43,000 412,000 1,224,000 956,000 1,232,000 686,000 515,000     185,000 343,000 1,511,000 3,561,000           
          proceeds from employee stock purchase plan transactions
        845,000 610,000 620,000 549,000 599,000 517,000 145,000 950,000 580,000 531,000 574,000 519,000 576,000 594,000 400,000 430,000 349,000 321,000 297,000 298,000 285,000 334,000 267,000 282,000 230,000 286,000 223,000 286,000 260,000 289,000 223,000 274,000 238,000 380,000 -1,000 207,000 182,000 297,000 208,000 194,000 193,000 301,000 217,000 203,000 244,000 261,000 239,000 561,000 296,000 268,000 492,000 248,000 230,000 243,000 254,000 314,000 246,000 258,000 217,000 269,000 203,000 246,000   195,000 258,000 220,000 309,000 216,000 454,000 348,000 216,000 461,000 302,000 191,000 209,000 196,000 245,000 114,000 145,000 165,000 232,000 179,000 154,000 179,000 -52 335,052       
          taxes paid for net share settlement of share-based payment options and awards
        -252,000 -6,588,000  -169,000 -2,044,000 -4,540,000  -682,000 -615,000 -2,169,000  -196,000 -667,000 -2,987,000  -68,000 -383,000 -6,025,000                                                                              
          net cash from financing activities
        9,537,000 -26,943,000 119,915,000 -29,254,000 -25,497,000 -30,540,000 -26,432,000 -19,924,000 -22,316,000 -20,376,000 -5,580,000 -18,733,000 -4,291,000 -5,896,000 -31,531,000 -18,497,000 -9,914,000 252,724,000 1,663,000 582,000 72,790,000 -12,793,000 -14,618,000 -34,710,000 62,000 112,869,000 1,023,000 -818,000 1,082,000 -174,000 1,794,000 669,000 648,000 2,716,000 221,000 -99,000 576,000 2,359,000 673,000 616,000 620,000 5,840,000 444,000 529,000 6,159,000 -1,987,000 -5,459,000 -1,602,000 3,129,000 -2,184,000 -2,732,000 -2,093,000 -3,781,000 767,000 388,000 679,000 477,000 1,582,000 1,226,000 1,060,000 771,000 785,000 310,000 1,515,000 -6,000 504,000 -333,000 -5,895,000 297,000  404,000 362,000 1,599,000 1,396,000 1,764,000 988,000 663,000 1,959,000 493,000 1,334,000 1,772,000 -4,808,000 4,220,000 1,743,000 3,740,000 1,408,000 1,373,000         
          effect of exchange rate changes on cash and cash equivalents
        -134,000 -20,000 66,000 122,000 130,000 -177,000 114,000 14,000 -209,000 1,851,000 -751,000 -557,000 -33,000 228,000 387,000 1,753,000 -630,000 -36,000 1,596,000 -2,041,000 -244,000 392,000 -1,457,000 132,000 -194,000 1,772,000 -325,000 -1,000 8,000 -492,000 -2,000 -1,564,000 1,405,000 241,000 751,000 1,436,000 869,000 -2,350,000 82,000 -502,000 782,000 -711,000 192,000 824,000 -1,733,000 -1,520,000 -1,740,000 329,000 224,000 1,029,000 16,000 -1,193,000 3,000 947,000 -1,248,000 234,000 -855,000  111,000 1,228,000 -770,000  -1,297,000 -476,000 -344,000  778,000 -1,086,000 -903,000  -1,337,000 -1,099,000 196,000  -262,000 104,000 246,000  -155,000 -274,000 -276,000  -289,000 258,000 505,000  120,000 357,044 466,956 -102,190 -25,557 124,783 27,282 200,564 154,007 
          net increase in cash and cash equivalents
        809,000 9,030,000             -6,615,000 129,000   5,490,000 19,753,000   -956,000 -3,001,000 9,014,000 -43,720,000 8,698,000 14,501,000 -2,629,000 14,208,000 10,320,000   -32,612,000 -13,830,000 20,157,000 -9,247,000 5,415,000 14,655,000 -6,198,000 15,080,000 7,172,000 -8,737,000 8,098,000 614,000 -2,447,000 -8,427,000 2,237,000 9,150,000     18,032,000 -5,524,000 5,170,000 -12,116,000 -5,258,000 2,660,000 -6,924,000 13,263,000 15,731,000 5,779,000 -14,020,000 -4,981,000 18,763,000 1,130,000 5,909,000 8,456,000 -2,575,000 -10,384,000 9,357,000 -597,000 -15,693,000 16,882,000 -4,282,000 5,794,000 1,252,000 -1,268,000     7,570,000 -7,128,000   -5,100,649 6,975,649 -14,783,616 -9,260,196  4,538,507 7,519,034  
          cash and cash equivalents, beginning of period
        21,902,000 27,510,000 31,693,000 34,900,000 152,432,000 54,129,000 92,792,000 58,014,000 78,222,000 75,727,000 45,018,000 47,490,000 41,320,000 41,320,000 60,246,000 54,684,000 50,943,000 48,434,000 14,176,000 18,375,000 15,674,000 12,990,000 19,528,000 -37 17,228,037 33,490,395 33,490,395 33,490,395 30,347,253 30,347,253 30,347,253 
          cash and cash equivalents, end of period
        809,000 30,932,000 1,798,000 -6,192,000 361,000 25,935,000 -827,000 4,542,000 -7,753,000 31,548,000 2,113,000 -2,080,000 711,000 30,949,000 -6,615,000 129,000 -5,802,000 47,188,000 5,490,000 19,753,000 77,926,000 49,263,000 -956,000 -3,001,000 9,014,000 49,072,000 8,698,000 14,501,000 -2,629,000 72,222,000 10,320,000 -4,697,000 6,781,000 45,610,000 -13,830,000 20,157,000 -9,247,000 81,142,000 14,655,000 -6,198,000 15,080,000 52,190,000 -8,737,000 8,098,000 614,000 45,043,000 -8,427,000 43,557,000 50,470,000 -4,572,000 3,535,000 -9,653,000 52,010,000 18,032,000 -5,524,000 5,170,000 42,568,000 -5,258,000 2,660,000 -6,924,000 64,206,000 15,731,000 5,779,000 -14,020,000 43,453,000 18,763,000 1,130,000 5,909,000 22,632,000 -2,575,000 -10,384,000 9,357,000 17,778,000 -15,693,000 16,882,000 -4,282,000 21,468,000 1,252,000 -1,268,000 3,732,000 11,958,000 6,645,000 -13,625,000 7,570,000 12,400,000 5,091,000 -4,666,000 -5,100,686 24,203,686 18,706,779 24,230,199 28,392,925 34,885,760 37,866,287 22,422,391 
          supplemental disclosures of cash flow information:
                                                                                                       
          interest paid
        1,898,000 2,430,000 1,640,000 1,208,000 1,187,000 2,369,000 2,983,000 3,506,000 3,965,000 4,309,000 5,832,000 6,138,000 5,915,000 8,466,000                                                                                  
          income taxes paid
        1,148,000 300,000 5,502,000 5,604,000 7,259,000 56,000 2,747,000 1,152,000 3,335,000 72,000 4,027,000 1,212,000 2,889,000 565,000                                                                                  
          supplemental schedule of non-cash investing and financing activities:
                                                                                                       
          transfer of inventory to property, equipment and improvements
        -2,276,000 -1,425,000 -934,000 -1,728,000 -3,033,000 -2,098,000 -3,898,000 -4,308,000 -2,941,000 -1,105,000 -714,000 -490,000 -1,173,000 -1,512,000 -4,495,000 -527,000 -516,000 -699,000 -214,000 -225,000 -517,000 -882,000 -161,000 -459,000 -557,000 -186,000 -143,000 -267,000 -454,000 -200,000                                                                  
          accrual for purchase of property, equipment, improvements and certain other intangible assets
        -240,000 -288,000  -11,000 -60,000 -108,000  -103,000 -15,000 -10,000  -113,000 -27,000 -17,000  -41,000 -12,000 -16,000  269,000 169,000 -452,000      13,000                                                                    
          payments of debt issuance costs
         -276,000                                                                                              
          write-off of debt issuance costs
              9,722,000                                                                                      
          stock-based compensation expense
                                                                                  754,000                     
          deferred income tax provision
                 -303,000 -6,244,000 -3,756,000 -3,644,000 905,000 -5,750,000 203,000 428,000 1,732,000 -6,593,000 1,313,000 -68,000 750,000  -12,000 522,000 234,000  -149,000 5,000 1,333,000 -3,059,000 -131,000 -272,000 2,954,000 -1,460,000 -890,000 -377,000 619,000 367,000 -649,000 97,000 1,300,000  -483,000 1,800,000 412,000                                                  
          litigation accrual
              -553,000                                                                                        
          accounts receivable
                                                                             1,065,000 206,000 -3,776,000 667,000 967,000 -947,000 -819,000 657,000 -122,000 -189,000 -1,050,000 543,000 -781,000 140,000 -1,060,000 -1,029,000           
          inventories
                                                                             -2,169,000 -172,000 -132,000 -620,000 -905,000 -1,806,000 1,193,000 -2,930,000 -1,815,000 -383,000 -129,000 -556,000 -771,000 338,000 1,172,000 -1,341,000           
          other assets
                                                                             -157,000 16,000 -67,000 304,000 -584,000 137,000 1,348,000 -776,000 98,000 -136,000 208,000 -365,000 -27,000 326,000 10,000 -1,045,000           
          income taxes
                                                                                                       
          accounts payable
                                                                                                       
          accrued expenses
                                                                                                       
          proceeds from sales of intangibles
                                                                                                       
          taxes paid for net share settlement of share-based payment awards
                                                                                                       
          net decrease in cash and cash equivalents
          1,798,000 -6,192,000 361,000 -1,575,000 -827,000 4,542,000 -7,753,000 -145,000  -2,080,000 711,000 -3,951,000    -105,244,000    -4,866,000                             3,535,000 -9,653,000 -8,236,000                            -1,032,000           -5,097,470   -7,924,862 
          accrual for property, equipment, improvements and certain other intangibles assets
                                                                                                       
          deferred income tax benefit
             500,000                                         -750,000 -1,065,000 -506,000 -658,000 -318,000 -537,000 -542,000 -661,000 -618,000 -590,000 -583,000  413,000 -712,000 -584,000  -1,353,000 -599,000 -249,000  -806,000 -704,000 -836,000  -776,000                         
          change in fair value of contingent consideration
                          5,772,000 -387,000 259,000 2,000 378,000 567,000 243,000 1,044,000 758,000 -18,000 -407,000 -3,034,000 -646,000 -602,000 -82,000 -628,000                                                         
          deferred income benefit
                                                                                                       
          (reversal) provision for bad debt and product return
                                                                                                       
          payments for contingent consideration
                                                                                                    
          proceeds from issuances of stock, net of offering expenses
                                                                                                       
          tenant improvement allowance
                          2,000,000 -1,000,000                                                                          
          liability related to acquisition of business
                                             -1,300,000 -10,550,000                                                      
          term debt refinanced as credit facility
                                                                                                       
          provision for bad debt and product returns
                     -148,000 -479,000 460,000 32,000 414,000 770,000 899,000 1,139,000 -518,000 1,697,000 330,000 58,000 50,000 41,000 26,000                                                                    
          provision for inventory obsolescence
                     3,019,000 191,000 978,000 5,132,000 600,000 600,000 600,000 1,163,000 951,000 61,000 455,000 524,000 450,000                                                          -345,000 -74,000         
          restructuring charge
                     23,000  105,000 109,000  101,000 161,000 733,000  91,000                 102,000 651,000                                                      
          loss on sale of property, equipment and improvements
                                                                                                       
          amortization of intangible assets
                       7,046,000 7,045,000 6,309,000  4,101,000 3,927,000 3,961,000  4,123,000 4,116,000 2,448,000  2,060,000                                                                    
          loss on sale of property and equipment
                       8,000    -5,000                                                                            
          proceeds from issuance of stock, net of offering expenses
                                                                                                      
          contingent consideration recognized related to acquisition of business
                           2,086,000    4,000,000 -9,100,000                                                                      
          amortization of identifiable intangible assets
                                     2,540,000 2,569,000 2,579,000 2,593,000 1,694,000 755,000 901,000 596,000 345,000 398,000 473,000 533,000 468,000 624,000 749,000 767,000 770,000 802,000 1,891,000 952,000 1,090,000 1,122,000 1,133,000 1,071,000 939,000 1,100,000 1,192,000 1,245,000 1,297,000 1,481,000 1,696,000 1,697,000                                   
          proceeds from maturities of marketable securities
                                             32,155,000 27,042,000 19,155,000 20,403,000 7,106,000 9,534,000 8,731,000 10,442,000 9,321,000 12,056,000 13,778,000 7,109,000 11,316,000 13,612,000 20,688,000 17,473,000 19,535,000 15,432,000 18,268,000 12,298,000 8,955,000 8,938,000 15,541,000 11,409,000 10,720,000 14,281,000 3,815,000 519,000                               
          proceeds from sale of property, equipment and improvements
                                                                                                       
          purchases of common stock
                           -120,000 -419,000 -1,446,000  -8,000 -107,000 -1,577,000  -7,000 -80,000 -964,000  -49,000 -45,000 -636,000  -335,000 -197,000 -390,000  -43,000 -100,000 -403,000  -82,000 -2,257,000  -5,416,000                                                
          acquisition of business, net of cash acquired
                                             -1,690,000  -2,860,000         -12,919,000                                           
          gain on sale of property, equipment and improvements
                                                                                                       
          proceeds from sale of business
                                              -17,000 2,866,000                                                      
          proceeds from sale of property and equipment
                                  49,000 10,047,000                                                               
          gain on sale of property and equipment
                                   -63,000 1,000 -4,396,000                                                                  
          proceeds from maturities and sales of marketable securities
                                   248,000 1,761,000 491,000  239,000 25,217,000 4,296,000  19,110,000                                                            
          restructuring reversal
                                    -67,000                                                                  
          excess tax benefits from stock-based compensation
                                          -11,000 -132,000 -183,000 -10,000 -12,000 -190,000     -44,000 -20,000 -7,000 -7,000 -25,000 -28,000 -65,000 -66,000 -54,000 -13,000 -322,000 -248,000 -167,000 -59,000 -8,000   -36,000 -2,000 -40,000 -2,000 -7,000 -12,000 -36,000 -129,000 -306,000 -160,000 -95,000 -60,000                   
          purchase of marketable securities
                                          -28,495,000 1,000 -8,000,000 -25,470,000 -18,503,000 -34,200,000 -13,977,000 -8,079,000 -23,373,000 -8,955,000 -9,964,000 -12,135,000 -11,846,000 -5,157,000  -18,038,000 -11,784,000 -27,464,000 -9,873,000 -8,435,000 -22,594,000 -18,851,000 -22,789,000 -16,989,000 -15,518,000 -26,825,000 -2,174,000 -10,028,000 -20,349,000 -8,161,000    -4,173,000                           
          acquisition earn-out payments
                                  -1,400,000 -2,187,000 -161,000     -518,000                                                          
          repurchase of common stock
                                                                                                       
          accrual for capitalized intangible asset
                                                                                                       
          restructuring (reversal) charge
                                                                                                       
          bad debt/product return provision
                                     206,000 716,000 9,000 381,000 14,000 23,000 42,000 32,000 264,000 52,000 -52,000 168,000 159,000 -320,000 488,000 30,000   22,000 195,000 331,000 64,000 221,000 -21,000 183,000 15,000 323,000                                       
          inventory obsolescence
                                     450,000 506,000 650,000 450,000 450,000 820,000 430,000 150,000 450,000 450,000 450,000 425,000 409,000 442,000 366,000 246,000 230,000 250,000 409,000 229,000 499,000 205,000 304,000 250,000 333,000 304,000 300,000 476,000 496,000 603,000                                     
          proceeds from sale of etherios
                                       2,000,000  3,000,000                                                          
          purchase of property, equipment, improvements and certain other identifiable intangible assets
                                     -1,775,000  -178,000 -332,000 -453,000  -593,000 -430,000 -554,000                                                          
          accrual for purchase of property, equipment, improvements and certain other identifiable intangible assets
                                     -2,883,000   -27,000   39,000 -105,000                                                          
          gain on sale of business
                                              42,000 -2,912,000                                                      
          restructuring charges
                                      111,000          -9,000     81,000                                               
          proceeds from sale of investment
                                                            135,000                                       
          receivable related to sale of business
                                              25,000 25,000 -109,000 5,015,000                                                      
          liability related to acquisition of businesses
                                                                                                     
          gain on insurance settlement related to property and equipment
                                                  -386,000                                                    
          proceeds from insurance settlement related to property and equipment
                                                  386,000                                                    
          purchase of common stock
                                                                                                       
          receivable related to sale of etherios
                                                                                                       
          net cash from in investing activities
                                                                                                       
          accrual for purchase of common stock
                                                                                                       
          gain in insurance settlement related to property and equipment
                                                                                                       
          supplemental schedule of non-cash investing activities:
                                                                                                       
          intangible impairment charge
                                                                                                       
          issuance of common stock for business acquisition
                                                         13,545,000 -6,804,000                                           
          net cash from (used) in investing activities
                                                                                                       
          bad debt/product return (recovery) provision
                                                       -151,000                                                
          restructuring charges (reversal)
                                                       81,000                                                
          securities purchased, not settled
                                                                                                       
          restructuring
                                                             963,000 60,000 236,000 224,000   -116,000                                 
          purchase of treasury stock
                                                           -2,539,000 -4,226,000             -426,000                       -8,554,833 -3,603,260     
          changes in operating assets and liabilities:
                                                                                                       
          acquisition of businesses, net of cash acquired, including deferred payments
                                                                                                       
          payments on capital lease obligations
                                                                     -1,000 -1,000 -1,000 -6,000 -25,000 -172,000 -70,000 -69,000 -68,000 -105,000 -86,000 -102,000      -116,000 -113,000 -143,000               
          supplemental cash flow information:
                                                                                                       
          supplemental schedule of noncash investing activities:
                                                                                                       
          deferred income taxes
                                                                                 1,497,000 -890,000 -800,000 78,000 3,687,000 -731,000                 
          income taxes receivable
                                                                                                       
          effect of exchange rates changes on cash and cash equivalents
                                                                                                       
          purchase of property, equipment, improvements and certain other intangible assets, net of proceeds from sale
                                                                   -700,000 -721,000   -565,000 -904,000                               
          amortization of identifiable intangible assets and other assets
                                                                     1,741,000 1,874,000 1,925,000 1,944,000 1,945,000 1,869,000 1,808,000 1,854,000 1,797,000 1,534,000 1,603,000 1,896,000 1,943,000 1,902,000 1,920,000 1,947,000 2,111,000 1,919,000 1,918,000 1,907,000 1,908,000 1,639,000 1,456,000 1,572,000 1,549,000 1,546,000         
          impairment on marketable security
                                                                                                       
          acquired in-process research & development
                                                                                                       
          income taxes (receivable) payable
                                                                                                       
          increase in restricted cash — non-current
                                                                                                       
          contingent purchase price payments related to acquisition
                                                                                                       
          deferred cash payout for acquisition of business
                                                                                                       
          borrowing on note payable
                                                                                                      
          payment on note payable
                                                                                                      
          supplemental cash flows information:
                                                                                                       
          other non-cash financing and investing items:
                                                                                                       
          deferred payment liability related to acquisition
                                                                                                       
          equipment acquired under capital lease
                                                                                                       
          deferred cash payout for acquisition of spectrum design solutions, inc.
                                                                                                      
          acquisition of assets of mobiapps holdings private limited
                                                                                                       
          proceeds from stock option plan transactions and other
                                                                      65,000                                 
          accrual for fs forth-systeme gmbh contingent purchase price payment
                                                                                                       
          acquired in-process research and development
                                                                                                       
          purchase of held-to-maturity marketable securities
                                                                          -13,968,000   -11,923,000 -5,582,000 -27,855,000 -23,836,000 -36,149,000 -16,206,000 -23,446,000 -16,941,000   -2,524,000 -4,609,000     -109,487,000 -11,893,000         
          proceeds from maturities of held-to-maturity marketable securities
                                                                          13,212,000   12,190,000 18,486,000 27,262,000 19,919,000 10,855,000 25,010,000 10,749,000 20,143,000                   
          acquisition of sarian systems, ltd., net of cash acquired
                                                                                                       
          contingent purchase price payments related to business acquisitions
                                                                               -1,315,000 -781,000         1,000 -221 -1,961,779 -2,018,157 -2,018,157  -2,931,910 -1,998,577  
          increase in noncurrent restricted cash
                                                                                                       
          proceeds from sale-leaseback and sale of other property, equipment, improvements
                                                                              421,000                         
          proceeds from sales and maturities of marketable securities
                                                                            16,064,000                           
          contingent purchase price payments related to business acquisition
                                                                                                       
          bad debt provision and
                                                                                                       
          gain on sale of intellectual property
                                                                                                       
          amortization of deferred gain on building sale
                                                                                                       
          income taxes payable
                                                                             -1,214,000 524,000 -1,281,000 1,978,000 -1,598,000 -970,000 1,119,000 1,179,000 -4,267,000 962,000 1,539,000 1,135,000 -3,763,000 2,007,000 -2,305,000 -2,978,000           
          proceeds from sale of intellectual property
                                                                                                       
          contingent purchase price payments related to fs forth-systeme gmbh
                                                                                                       
          net cash (used) provided by financing activities
                                                                                                       
          issuance of common stock for maxstream acquisition
                                                                                                       
          changes in operating assets and liabilities, excluding impact of acquisition:
                                                                                                       
          accounts payable and accrued expenses
                                                                              -1,134,000 5,127,000 -4,149,000  2,119,000 -578,000 -2,444,000  -463,000 425,000 -2,800,000  -172,000 568,000 -2,275,000           
          acquisition of sarian, inc., net of cash acquired
                                                                                                       
          contingent purchase price payments related to prior business acquisitions
                                                                                                       
          increase in non-current restricted cash
                                                                                                       
          deferred income taxes provision
                                                                                -1,235,000                       
          bad debt and product return recoveries
                                                                                                       
          tax benefit related to the exercise of stock options
                                                                                         68,000 59,000 477,000 1,509,000           
          total adjustments
                                                                                         3,394,000 4,332,000 -1,614,000 -5,721,000 2,672,000 3,631,000         
          acquisition of maxstream, inc., net of cash acquired
                                                                                                       
          acquisition of rabbit semiconductor, inc., net of cash acquired
                                                                                         -12,000              
          acquisition of fs forth-systeme gmbh and sistemas embebidos s.a., net of cash acquired
                                                                                         -16,000              
          payments on short-term borrowing and line of credit
                                                                                                       
          income taxes refunded
                                                                                                       
          assumption of line of credit related to acquisition
                                                                                                       
          assumption of capital leases related to acquisition
                                                                                                       
          proceeds from the sale of property, equipment, improvements
                                                                                  13,000                     
          payments on capital lease obligations and long-term debt
                                                                                  -89,000 -95,000 -103,000                   
          other non-cash financing items:
                                                                                                       
          (purchase) settlement of held-to-maturity marketable securities
                                                                                            -8,417,000           
          acquisitions, net of cash acquired
                                                                                                       
          borrowing from short-term loans, net of payments
                                                                                                       
          payments on line of credit
                                                                                                       
          proceeds from exercise of stock options
                                                                                                       
          deposit on business acquisition
                                                                                                       
          proceeds from stock option plans transactions
                                                                                        1,684,000               
          cumulative effect of accounting change
                                                                                                       
          gain from forgiveness of grant payable
                                                                                                       
          changes in operating assets and liabilities, net of acquisition impact:
                                                                                                       
          net (payments) borrowing on short-term borrowing and line of credit
                                                                                                       
          net deferred tax assets
                                                                                          -542,000             
          changes in operating assets and liabilities, net of effects of acquisitions in 2005:
                                                                                                       
          settlement (purchase) of held-to-maturity marketable securities
                                                                                                       
          purchase of held-to-maturity marketable securities, net of settlements
                                                                                                       
          payments on borrowings
                                                                                                      
          bad debt and product return (recoveries) provision
                                                                                                       
          loss on sale of milan assets
                                                                                                       
          in-process research & development
                                                                                                       
          business acquisition, net of cash acquired
                                                                                                    -10,418,955 -10,418,955  
          proceeds from the sale of milan assets
                                                                                                       
          (payments) borrowing on short-term borrowing and line of credit
                                                                                                       
          adjustments to reconcile net income to net cash from operating activities
                                                                                                       
          tax benefit related to exercise of stock options
                                                                                              285,000         
          proceeds from employee stock option plan transactions
                                                                                              1,194,000         
          borrowings on short-term borrowing and line of credit
                                                                                                371       
          proceeds from stock option transactions
                                                                                                1,857,773       
          net loss
                                                                                                 -39,079,134 -40,291,950 -42,796,317 -8,429,085 -7,841,300 -506,499 
          adjustments to reconcile net loss to cash from operating activities:
                                                                                                       
          purchase of property and equipment and certain other intangible assets
                                                                                                 -1,079,367 -693,270     
          business acquisitions, net of cash acquired
                                                                                                       
          borrowings (payments) on short-term borrowing and line of credit
                                                                                                       
          stock option transactions
                                                                                                       
          employee stock purchase plan transactions
                                                                                                       
          adjustments to reconcile net loss to net cash from operating activities
                                                                                                       
          proceeds from sale of milan assets
                                                                                                    8,058,932 8,058,932  
          proceeds from sale of fixed assets
                                                                                                 6,447 6,447     
          payments under line of credit
                                                                                                       
          principal payments on long-term debt
                                                                                                 -1,297,199 -206,859  -1,399,287 -1,355,213  
          stock benefit plan transactions
                                                                                                 451,301 280,606  562,888 385,112  
          adjustments to reconcile net loss to net cash from operating activities:
                                                                                                       
          purchase of property, equipment, intangibles and improvements
                                                                                                    -653,810 -341,234  
          borrowing (payments) under line of credit agreements
                                                                                                    473,251   
          payments under line of credit agreements
                                                                                                     -374,832