7Baggers

Atrion Corporation
(NASDAQ:ATRI) 

ATRI stock logo

Atrion Corporation, together with its subsidiaries, develops, manufactures, and sells products for fluid delivery, cardiovascular, and ophthalmology applications in the United States, Germany, and internationally. Its fluid delivery products include valves that fill, hold, and release controlled amo...

Founded: 1944
Full Time Employees: 616
Sector: Healthcare
Industry: Medical Instruments & Supplies

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Quarterly
Annual
    Unit: USD2024-06-30 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 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 
                                                                         
      revenues
    48,773,000 47,334,000 43,584,000 41,911,000 43,838,000 39,993,000 42,855,000 44,631,000 48,882,000 47,138,000 40,293,000 42,855,000 42,693,000 39,169,000 32,243,000 33,785,000 37,968,000 43,594,000 34,466,000 38,883,000 40,103,000 41,614,000 34,926,000 39,274,000 38,847,000 39,401,000 34,024,000 37,903,000 36,164,000 38,504,000 33,294,000 37,835,000 36,143,000 36,215,000 32,372,000 37,381,000 37,655,000 38,324,000 32,693,000 36,625,000 35,025,000 36,419,000 31,851,000 34,044,000 32,605,000 28,497,000 30,637,000 30,689,000 29,239,000 25,519,000 30,457,000 31,139,000 30,589,000 26,630,000 27,156,000 27,881 26,902,000 24,403,000 25,192,000 26,001,000 25,047,000 23,590,000 23,461,000 24,242,000 24,602,000 20,988,000 21,315,000 23,199,000 23,037,000 
      cost of goods sold
    32,926,000 34,983,000 27,267,000 28,175,000 26,584,000 24,912,000 24,681,000 26,978,000 28,049,000 27,894,000 22,917,000 25,065,000 24,826,000 22,830,000 18,314,000 18,887,000 20,499,000 23,726,000 18,964,000 20,992,000 21,511,000 22,911,000 19,321,000 21,275,000 19,624,000 20,450,000 18,000,000 19,498,000 18,470,000 19,873,000 18,068,000 20,211,000 18,928,000 18,650,000 17,084,000 18,997,000 18,871,000 19,800,000 13,808,500 18,587,000 17,616,000 19,031,000 17,174,000 17,003,000 16,971,000 15,754,000 15,742,000 16,016,000 15,410,000 12,815,000 15,161,000 14,684,000 15,037,000 13,747,000 14,180,000 14,851 14,877,000 13,410,000 13,973,000 13,970,000 13,958,000 13,069,000 13,221,000 13,137,000 13,922,000 12,303,000 12,210,000 12,880,000 13,377,000 
      gross profit
    15,847,000 12,351,000 16,317,000 13,736,000 17,254,000 15,081,000 18,174,000 17,653,000 20,833,000 19,244,000 17,376,000 17,790,000 17,867,000 16,339,000 13,929,000 14,898,000 17,469,000 19,868,000 15,502,000 17,891,000 18,592,000 18,703,000 15,605,000 17,999,000 19,223,000 18,951,000 16,024,000 18,405,000 17,694,000 18,631,000 15,226,000 17,624,000 17,215,000 17,565,000 15,288,000 18,384,000 18,784,000 18,524,000 13,208,750 18,038,000 17,409,000 17,388,000 14,677,000 17,041,000 15,634,000 12,743,000 14,895,000 14,673,000 13,829,000 12,704,000 15,296,000 16,455,000 15,552,000 12,883,000 12,976,000 13,030 12,025,000 10,993,000 11,219,000 12,031,000 11,089,000 10,521,000 10,240,000 11,105,000 10,680,000 8,685,000 9,105,000 10,319,000 9,660,000 
      yoy
    -8.15% -18.10% -10.22% -22.19% -17.18% -21.63% 4.59% -0.77% 16.60% 17.78% 24.75% 19.41% 2.28% -17.76% -10.15% -16.73% -6.04% 6.23% -0.66% -0.60% -3.28% -1.31% -2.61% -2.21% 8.64% 1.72% 5.24% 4.43% 2.78% 6.07% -0.41% -4.13% -8.35% -5.18% 15.74% 1.92% 7.90% 6.53% -10.00% 5.85% 11.35% 36.45% -1.46% 16.14% 13.05% 0.31% -2.62% -10.83% -11.08% -1.39% 17.88% 126185.50% 29.33% 17.19% 15.66% -99.89% 8.44% 4.49% 9.56% 8.34% 3.83% 21.14% 12.47% 7.62% 10.56%     
      qoq
    28.31% -24.31% 18.79% -20.39% 14.41% -17.02% 2.95% -15.26% 8.26% 10.75% -2.33% -0.43% 9.35% 17.30% -6.50% -14.72% -12.07% 28.16% -13.35% -3.77% -0.59% 19.85% -13.30% -6.37% 1.44% 18.27% -12.94% 4.02% -5.03% 22.36% -13.61% 2.38% -1.99% 14.89% -16.84% -2.13% 1.40% 40.24% -26.77% 3.61% 0.12% 18.47% -13.87% 9.00% 22.69% -14.45% 1.51% 6.10% 8.86% -16.95% -7.04% 5.81% 20.72% -0.72% 99485.57% -99.89% 9.39% -2.01% -6.75% 8.49% 5.40% 2.74% -7.79% 3.98% 22.97% -4.61% -11.76% 6.82%  
      operating expenses:
                                                                         
      selling
    2,714,000 2,772,000 2,534,000 2,348,000 2,317,000 2,727,000 2,331,000 2,306,000 2,629,000 2,517,000 2,179,000 2,081,000 1,874,000 1,926,000 1,860,000 1,888,000 1,703,000 2,070,000 2,239,000 2,092,000 2,098,000 2,384,000 2,172,000 2,105,000 2,045,000 2,018,000 1,948,000 1,691,000 1,864,000 1,748,000 1,740,000 1,471,000 1,664,000 1,735,000 1,518,000 1,322,000 1,682,000 1,520,000 1,160,500 1,440,000 1,616,000 1,585,000 1,622,000 1,530,000 1,481,000 1,486,000 1,301,000 1,465,000 1,442,000 1,269,000 1,220,000 1,341,000 1,495,000 1,292,000 1,312,000 1,346 1,418,000 1,283,000 1,357,000 1,516,000 1,493,000 1,491,000 1,432,000 1,646,000 1,699,000 1,535,000 1,494,000 1,672,000 1,651,000 
      general and administrative
    11,279,000 4,787,000 5,534,000 5,453,000 5,951,000 6,254,000 5,718,000 4,493,000 5,622,000 5,100,000 5,834,000 4,838,000 4,753,000 4,172,000 4,264,000 4,039,000 4,628,000 4,400,000 3,828,000 3,990,000 4,304,000 4,187,000 3,747,000 3,933,000 4,309,000 4,229,000 4,040,000 4,086,000 4,287,000 4,017,000 3,877,000 3,613,000 3,880,000 3,949,000 3,886,000 3,926,000 4,313,000 3,958,000 3,116,250 4,151,000 4,386,000 3,928,000 3,660,000 3,651,000 3,706,000 3,021,000 3,164,000 3,397,000 3,471,000 3,019,000 3,294,000 3,949,000 3,385,000 3,216,000 2,901,000 2,829 2,954,000 3,554,000 2,635,000 2,718,000 2,717,000 2,693,000 2,398,000 2,505,000 2,740,000 2,159,000 2,595,000 2,471,000 2,616,000 
      research and development
    1,320,000 1,650,000 1,585,000 1,869,000 1,607,000 1,630,000 1,320,000 1,251,000 1,553,000 1,377,000 1,525,000 1,393,000 1,445,000 1,310,000 1,480,000 1,388,000 1,092,000 1,684,000 1,360,000 1,359,000 1,224,000 1,095,000 1,368,000 1,204,000 1,603,000 1,338,000 1,743,000 1,149,000 1,368,000 1,539,000 1,998,000 1,564,000 1,597,000 1,416,000 1,554,000 1,563,000 1,669,000 1,560,000 886,250 1,221,000 1,150,000 1,175,000 1,059,000 1,147,000 952,000 1,197,000 753,000 844,000 973,000 785,000 778,000 728,000 576,000 619,000 760,000 675 615,000 863,000 661,000 760,000 770,000 728,000 630,000 823,000 787,000 754,000 619,000 750,000 656,000 
      operating income
    534,000 3,142,000 6,664,000 4,066,000 7,379,000 4,470,000 8,805,000 9,603,000 11,029,000 10,250,000 7,838,000 9,478,000 9,795,000 8,931,000 6,325,000 7,583,000 10,046,000 11,714,000 8,075,000 10,450,000 10,966,000 11,037,000 8,318,000 10,757,000 11,266,000 11,366,000 8,293,000 11,479,000 10,175,000 11,327,000 7,611,000 10,976,000 10,074,000 10,465,000 8,330,000 11,573,000 11,120,000 11,486,000 8,634,000 11,226,000 10,257,000 10,700,000 8,336,000 10,713,000 9,495,000 7,039,000 9,677,000 8,967,000 7,943,000 7,631,000 10,004,000 10,437,000 10,096,000 7,756,000 8,003,000 8,180 7,038,000 5,293,000 6,566,000 7,037,000 6,109,000 5,609,000 5,780,000 6,131,000 5,454,000 4,237,000 5,795,000 5,426,000 4,737,000 
      yoy
    -92.76% -29.71% -24.32% -57.66% -33.09% -56.39% 12.34% 1.32% 12.60% 14.77% 23.92% 24.99% -2.50% -23.76% -21.67% -27.44% -8.39% 6.13% -2.92% -2.85% -2.66% -2.89% 0.30% -6.29% 10.72% 0.34% 8.96% 4.58% 1.00% 8.24% -8.63% -5.16% -9.41% -8.89% -3.52% 3.09% 8.41% 7.35% 3.57% 4.79% 8.03% 52.01% -13.86% 19.47% 19.54% -7.76% -3.27% -14.08% -21.33% -1.61% 25.00% 127491.69% 43.45% 46.53% 21.89% -99.88% 15.21% -5.63% 13.60% 14.78% 12.01% 32.38% -0.26% 12.99% 15.14%     
      qoq
    -83.00% -52.85% 63.90% -44.90% 65.08% -49.23% -8.31% -12.93% 7.60% 30.77% -17.30% -3.24% 9.67% 41.20% -16.59% -24.52% -14.24% 45.07% -22.73% -4.71% -0.64% 32.69% -22.67% -4.52% -0.88% 37.06% -27.76% 12.82% -10.17% 48.82% -30.66% 8.95% -3.74% 25.63% -28.02% 4.07% -3.19% 33.03% -23.09% 9.45% -4.14% 28.36% -22.19% 12.83% 34.89% -27.26% 7.92% 12.89% 4.09% -23.72% -4.15% 3.38% 30.17% -3.09% 97736.19% -99.88% 32.97% -19.39% -6.69% 15.19% 8.91% -2.96% -5.73% 12.41% 28.72% -26.89% 6.80% 14.55%  
      interest and dividend income
    388,000 156,000 119,000 320,000 127,000 240,000 349,000 210,000 292,000 137,000 163,000 281,000 183,000 217,000 283,000 303,000 367,000 462,000 591,000 733,000 388,000 582,000 510,000 439,000 411,000 330,000 201,500 287,000                                          
      other investment income/
    -542,000 -109,000 -351,250 -782,000 98,000 -721,000 54,000 764,000 -308,000 -240,000    62,000    -997,000    211,000    -789,000                                            
      other income
    23,000 14,000   29,000 10,000  7,000 60,000 25,000    66,000         22,000 20,000      1,000 1,000 1,000 36,000 -345,000     3,250 12,000  1,000       2,000 9,000 1,000  2,000  2,000   1,000      1,000      
      interest expense
      -25,000 -97,000 -27,000                                                         -9,000 -1,000    -33,000 -77,000 -141,000 
      income before benefit from income taxes
    403,000 3,203,000 7,263,000 3,507,000 7,606,000 3,999,000 8,788,000 10,584,000 11,073,000 10,172,000 8,626,000 9,586,000 10,941,000 9,276,000 7,958,000 8,564,000 10,767,000 11,179,000 8,553,000 11,077,000 11,708,000 11,830,000 8,623,000 11,237,000 11,269,000 10,907,000 8,552,000 11,766,000 10,545,000 11,476,000 7,745,000 11,083,000 10,195,000 10,243,000 6,054,000 11,704,000 11,448,000 11,663,000 8,275,000 11,478,000 10,621,000 11,001,000 8,652,000 11,023,000 9,841,000 7,426,000 10,088,000 9,326,000 8,235,000 7,942,000 10,330,000 10,779,000 10,424,000 8,076,000 8,320,000 8,393 7,199,000 5,481,000 6,728,000 7,164,000 6,211,000 4,382,250 5,858,000 6,181,000 5,490,000 3,934,250 5,772,000 5,359,000 4,605,000 
      benefit from income taxes
    -1,000 -411,000 -839,000 -568,000 -1,043,000 -514,000 -466,000 -1,745,000 -1,725,000 -1,673,000 -499,000 -1,309,000 -2,017,000 -1,550,000 -588,000 -1,321,000 -2,162,000 -2,281,000 -489,000 -1,482,000 -2,044,000 -2,392,000 -874,000 -2,016,000 -2,472,000 -2,420,000 94,000 -3,795,000 -519,000 -1,526,000 -2,174,000 -3,469,000 -2,745,000 -3,298,000 -4,000 -3,905,000 -3,974,000 -4,061,000 -2,833,000 -3,793,000 -3,739,000 -3,800,000 -2,883,000 -3,350,000 -3,335,000 -2,532,000 -2,829,000 -3,227,000 -2,858,000 -2,554,000 -3,556,000 -3,760,000 -3,566,000 -2,652,000 -2,920,000 -2,962 -2,502,000 -1,889,000 -2,268,000 -2,507,000 -2,077,000 -1,850,000 -1,866,000 -2,046,000 -1,834,000 -1,122,000 -1,662,000 -1,741,000 -1,469,000 
      net income
    402,000 2,792,000 6,424,000 2,939,000 6,563,000 3,485,000 8,322,000 8,839,000 9,348,000 8,499,000 8,127,000 8,277,000 8,924,000 7,726,000 7,370,000 7,243,000 8,605,000 8,898,000 8,064,000 9,595,000 9,664,000 9,438,000 7,749,000 9,221,000 8,797,000 8,487,000 8,646,000 7,971,000 10,026,000 9,950,000 5,571,000 7,614,000 7,450,000 6,945,000 6,050,000 7,799,000 7,474,000 7,602,000 6,040,000 7,685,000 6,882,000 7,201,000 5,769,000 7,673,000 6,506,000 4,894,000 7,259,000 6,099,000 5,377,000 5,388,000 6,774,000 7,019,000 6,858,000 5,424,000 5,400,000 5,431 4,697,000 3,592,000 4,460,000 4,657,000 4,134,000 3,884,000 3,992,000 4,135,000 3,656,000 3,142,000 4,110,000 3,618,000 3,136,000 
      yoy
    -93.87% -19.89% -22.81% -66.75% -29.79% -59.00% 2.40% 6.79% 4.75% 10.01% 10.27% 14.28% 3.71% -13.17% -8.61% -24.51% -10.96% -5.72% 4.07% 4.06% 9.86% 11.21% -10.37% 15.68% -12.26% -14.70% 55.20% 4.69% 34.58% 43.27% -7.92% -2.37% -0.32% -8.64% 0.17% 1.48% 8.60% 5.57% 4.70% 0.16% 5.78% 47.14% -20.53% 25.81% 21.00% -9.17% 7.16% -13.11% -21.60% -0.66% 25.44% 129139.55% 46.01% 51.00% 21.08% -99.88% 13.62% -7.52% 11.72% 12.62% 13.07% 23.62% -2.87% 14.29% 16.58%     
      qoq
    -85.60% -56.54% 118.58% -55.22% 88.32% -58.12% -5.85% -5.45% 9.99% 4.58% -1.81% -7.25% 15.51% 4.83% 1.75% -15.83% -3.29% 10.34% -15.96% -0.71% 2.39% 21.80% -15.96% 4.82% 3.65% -1.84% 8.47% -20.50% 0.76% 78.60% -26.83% 2.20% 7.27% 14.79% -22.43% 4.35% -1.68% 25.86% -21.41% 11.67% -4.43% 24.82% -24.81% 17.94% 32.94% -32.58% 19.02% 13.43% -0.20% -20.46% -3.49% 2.35% 26.44% 0.44% 99329.20% -99.88% 30.76% -19.46% -4.23% 12.65% 6.44% -2.71% -3.46% 13.10% 16.36% -23.55% 13.60% 15.37%  
      net income per basic share
    230 1,590 3,640 1,670 3,730 1,980 4,700 4,950 5,210 4,730 4,510 4,590 4,890 4,230 4,030 3,960 4,690 4,800 4,340 5,170 5,210 5,090 4,190 4,980 4,750 4,580 4,660 4,300 5,440 5,420 3,050 4,170 4,090 3,810 3,330 4,250 4,040 4,050 2,770 3,940 3,510 3,630 2,890 3,820 3,230                         
      weighted-average basic shares outstanding
    1,761,000 1,760,000 1,761,000 1,760,000 1,760,000 1,762,000 1,787,000 1,786,000 1,794,000 1,799,000 1,814,000 1,803,000 1,826,000 1,826,000 1,836,000 1,829,000 1,835,000 1,853,000 1,855,000 1,855,000 1,854,000 1,853,000 1,853,000 1,853,000 1,852,000 1,852,000 1,846,000 1,852,000 1,844,000 1,835,000 1,824,000 1,825,000 1,822,000 1,823,000 1,846,000 1,836,000 1,850,000 1,875,000  1,949,000 1,960,000 1,982,000 2,010,000 2,007,000 2,015,000 2,016,000 2,014,000 2,016,000 2,015,000 2,019,000 2,023,000 2,019,000 2,016,000 2,018,000 2,017,000 2,022 2,018,000 1,979,000 1,980,000 1,980,000 1,974,000 1,952,000 1,958,000 1,956,000 1,937,000 1,887,000 1,895,000 1,883,000 1,872,000 
      net income per diluted share
    230 1,590 3,650 1,670 3,730 1,980 4,700 4,940 5,200 4,710 4,500 4,580 4,880 4,220 4,020 3,950 4,680 4,790 4,330 5,150 5,180 5,070 4,170 4,960 4,740 4,570 4,650 4,290 5,400 5,360 2,990 4,100 4,020 3,760 3,280 4,190 3,990 4,010 -10,975.92 3,910 3,480 3,610 2,870 3,810 3,220                         
      weighted-average diluted shares outstanding
    1,763,000 1,761,000 1,761,000 1,761,000 1,761,000 1,763,000 1,790,000 1,788,000 1,798,000 1,803,000 1,818,000 1,806,000 1,828,000 1,832,000 1,841,000 1,834,000 1,839,000 1,859,000 1,863,000 1,862,000 1,864,000 1,862,000 1,858,000 1,858,000 1,857,000 1,856,000 1,857,000 1,857,000 1,858,000 1,855,000 1,857,000 1,858,000 1,853,000 1,849,000 1,870,000 1,860,000 1,872,000 1,895,000  1,966,000 1,977,000 1,997,000 2,017,000 2,016,000 2,019,000 2,027,000 2,022,000 2,019,000 2,026,000 2,031,000 2,033,000 2,030,000 2,030,000 2,030,000 2,029,000 2,033 2,030,000 2,015,000 2,028,000 2,021,000 2,003,000 2,004,000 2,005,000 2,005,000 2,003,000 1,985,000 1,988,000 1,978,000 1,975,000 
      dividends per common share
    2,200 2,200 2,200 2,200 2,150 2,150 2,150 2,150 1,950 1,950 1,950 1,950 1,750 1,750 1,750 1,750 1,550 1,550 1,550 1,550 1,350 1,350 1,350 1,350 1,200 1,200 1,200 1,200 1,050 1,050 1,050 1,050 900 900 900 900 750 750 507.5 750 640 640 640 640 560 10,560 560 490 490 490 490 420 420 3,420 420 0.36 6,360 360 360 300 300 300 300 240 240 240 240 200 200 
      other investment income
              625,000 -173,000 963,000  1,350,000 678,000 354,000  -113,000 -106,000 354,000  -227,000 21,000 -408,000                                             
      total operating expense
                  7,604,000 7,315,000                                                      
      total non operating income expenses
                  291,500 981,000                                                      
      interest income
                                370,000 148,000 133,000 106,000 85,000 123,000 135,000 131,000 328,000 177,000 226,000 240,000 364,000 300,000 308,000 310,000 346,000 387,000 411,000 359,000 290,000 302,000 325,000 342,000 326,000 320,000 315,000 213 161,000 187,000 162,000 127,000 102,000 134,000 79,000 49,000 36,000 27,000 10,000 10,000 9,000 
      other comprehensive income, net of tax:
                                                                         
      none
                                                                         
      comprehensive income
                                                 4,683,750 7,259,000 6,099,000 5,377,000                     
      income per basic share
                                                 2,325 3,600 3,030 2,670 2,555 3,350 3,480 3,400 1,922.5 2,680 2.69 2,330 1,675 2,250 2,350 2,090 1,510 2,040 2,110 1,890    1,680 
      income per diluted share
                                                 2,310 3,590 3,020 2,650 2,542.5 3,330 3,460 3,380 1,912.5 2,660 2.67 2,310 1,642.5 2,200 2,300 2,060 1,470 1,990 2,060 1,830    1,590 
      other income:
                                                                         
      dispute resolution
                                                                      -1,398,000   
      income from continuing operations
                                                                     3,142,000 4,110,000 3,618,000  
      gain on disposal of discontinued operations, net of income taxes
                                                                         
      income per basic share:
                                                                         
      gain on disposal of discontinued operations
                                                                         
      income per diluted share:
                                                                         
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2024-06-30 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 2017-09-30 2017-06-30 2017-03-31 2016-09-30 2016-06-30 2016-03-31 2015-09-30 2015-06-30 2015-03-31 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 2011-09-30 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 
                                                                       
        assets
                                                                       
        current assets:
                                                                       
        cash and cash equivalents
      11,462,000 7,135,000 3,565,000 658,000 309,000 4,563,000 4,731,000 27,125,000 16,437,000 24,886,000 32,264,000 23,656,000 17,070,000 29,427,000 22,450,000 23,996,000 24,099,000 44,080,000 45,048,000 63,673,000 49,602,000 44,043,000 58,753,000 50,031,000 36,063,000 20,181,000 20,995,000 20,223,000 17,529,000 23,747,000 30,817,000 27,947,000 23,405,000 19,580,000 15,871,000 26,921,000 23,521,000 17,196,000 28,559,000 30,724,000 20,269,000 16,012,000 7,999,000 22,341,000 8,395,000 18,943,000 18,687,000 9,744,000 7,960,000 10,670,000 9,851,000 4,786,000 16,709,000 20,694,000 14,313,000 13,942,000 16,731,000 12,056,000 13,845,000 7,803,000 5,270,000 3,531,000 1,045,000 285,000 307,000 
        short-term investments
      6,124,000 2,760,000 2,691,000 3,839,000 5,132,000 13,013,000 21,152,000 20,296,000 34,146,000 35,374,000 29,059,000 29,590,000 30,478,000 18,393,000 19,258,000 18,779,000 6,574,000 18,568,000 23,766,000 21,339,000 25,595,000 24,779,000 9,684,000 15,465,000 24,176,000 34,795,000 38,959,000 27,073,000 29,019,000 15,049,000 6,000 39,000 114,000 44,000 3,189,000 18,178,000 18,146,000 25,417,000 18,351,000 8,448,000 12,574,000 4,415,000 8,182,000 16,354,000 17,377,000 20,164,000 20,508,000 19,166,000 16,582,000 10,715,000 6,672,000 3,844,000 1,224,000 4,230,000 4,860,000 7,790,000 4,657,000 4,692,000        
        accounts receivable
      26,555,000 25,116,000 23,029,000 23,290,000 23,693,000 19,424,000 23,951,000 22,038,000 27,539,000 24,158,000 21,023,000 25,221,000 22,682,000 20,235,000 16,445,000 17,747,000 22,441,000 22,813,000 18,886,000 18,770,000 20,368,000 21,240,000 17,014,000 20,766,000 18,269,000 20,604,000 19,585,000 19,690,000 20,679,000 20,124,000 18,833,000 21,717,000 19,604,000 21,248,000 21,407,000 18,399,000 16,407,000 18,642,000 14,164,000 16,183,000 17,126,000 17,384,000 13,054,000 14,579,000 14,921,000 12,383,000 13,655,000 14,835,000 14,885,000  13,007,000 11,804,000 12,889,000 11,026,000 11,663,000 11,810,000 13,249,000 10,875,000 11,719,000 12,116,000 12,270,000 9,601,000 10,422,000 11,568,000 11,077,000 
        inventories
      67,641,000 75,000,000 82,307,000 82,946,000 80,252,000 75,093,000 65,793,000 59,624,000 54,281,000 51,414,000 50,778,000 47,307,000 47,725,000 49,519,000 50,298,000 48,622,000 45,805,000 41,252,000 42,093,000 38,314,000 34,590,000 32,801,000 33,572,000 32,172,000 32,503,000 29,907,000 29,924,000 29,965,000 30,354,000 30,056,000 31,167,000 30,468,000 29,202,000 27,453,000 26,747,000 28,408,000 27,208,000 26,326,000 26,266,000 26,488,000 25,183,000 24,047,000 23,779,000 24,512,000 24,899,000 25,644,000 23,422,000 21,088,000 18,765,000 17,400,000 18,442,000 18,168,000 18,149,000 18,675,000 18,866,000 18,786,000 19,459,000 20,169,000 21,373,000 20,231,000 17,977,000 17,387,000 17,727,000 16,975,000 17,208,000 
        prepaid expenses and other current assets
      7,480,000 2,503,000 3,173,000 5,010,000 6,623,000 2,496,000 3,770,000 3,598,000 5,171,000 2,901,000 3,447,000 7,992,000 7,873,000 2,385,000 3,868,000 4,013,000 3,226,000 1,367,000 2,545,000 2,661,000 2,931,000 1,803,000 3,242,000 2,599,000 2,919,000 2,064,000 3,001,000 6,022,000 2,003,000 2,180,000 3,815,000 1,372,000 2,788,000 2,954,000 1,400,000 1,974,000 2,488,000 1,008,000 1,603,000 1,592,000 2,300,000 909,000 3,110,000       1,050,000    981,000    719,000    1,483,000    
        long-term investments
      5,624,000 8,853,000 8,165,000 9,474,000 10,186,000 8,697,000 8,669,000 11,133,000 15,794,000 17,566,000 19,423,000 24,898,000 32,441,000 40,672,000 46,207,000 45,381,000 56,871,000 33,718,000 31,772,000 16,830,000 23,051,000 27,466,000 21,048,000 21,166,000 22,208,000 23,953,000 10,112,000 10,046,000 9,463,000 9,838,000 10,617,000 11,092,000 12,145,000 11,974,000 13,529,000 10,000,000 10,000,000 12,375,000 10,069,000 20,104,000 20,124,000 28,365,000 28,433,000 23,501,000 27,665,000 15,347,000 13,529,000 18,742,000 21,693,000 20,291,000 24,448,000 28,365,000 11,418,000 11,477,000 11,537,000 4,420,000          
        property, plant and equipment
      286,224,000 289,054,000 286,445,000 284,079,000 281,359,000 275,575,000 270,642,000 258,970,000 249,648,000 239,786,000 233,217,000 229,719,000 225,384,000 221,342,000 218,912,000 213,203,000 207,814,000 204,280,000 200,990,000 196,250,000 191,045,000 184,631,000 181,582,000 177,598,000 174,322,000 170,313,000 167,148,000 165,571,000 162,543,000 159,301,000 155,772,000 153,660,000 147,728,000 146,511,000 144,641,000 138,426,000 136,024,000 133,753,000 130,504,000 127,851,000 125,922,000 125,587,000 124,180,000 121,825,000 120,127,000 117,649,000 111,270,000 108,810,000 105,446,000 103,789,000 102,133,000 101,488,000 100,590,000 99,862,000 98,768,000 97,289,000 95,328,000 94,364,000 93,681,000 92,819,000 91,749,000 89,736,000 87,868,000 85,654,000 83,477,000 
        less accumulated depreciation and amortization
      163,319,000 164,446,000  157,313,000 153,652,000    140,842,000 137,626,000  132,650,000 129,372,000 126,451,000  122,150,000 119,947,000 118,834,000  113,989,000 111,324,000 108,691,000  105,151,000 104,750,000 102,828,000 100,630,000 99,015,000 96,942,000 93,618,000 91,483,000 89,548,000 85,486,000 83,637,000 81,567,000 77,980,000 76,107,000 74,173,000 72,176,000 70,163,000 68,135,000 66,872,000 64,912,000 62,918,000 61,658,000 60,235,000 57,146,000 55,676,000 54,380,000 53,125,000 51,753,000 50,290,000 48,528,000 46,721,000 44,875,000 43,779,000 42,307,000 40,994,000 39,572,000 38,187,000 36,797,000 35,686,000 34,298,000 32,970,000 31,784,000 
        other assets and deferred charges:
                                                                       
        patents and licenses
      1,015,000 1,043,000  1,100,000 1,128,000 1,157,000  1,213,000                                                          
        goodwill
      9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 9,730,000 
        other
      1,818,000 1,879,000 1,746,000 1,996,000 2,065,000 1,889,000 1,977,000 2,084,000 2,171,000 2,177,000 2,266,000 2,139,000 2,266,000 2,200,000 2,278,000 2,261,000 2,257,000 1,946,000 2,046,000 1,604,000 1,564,000 1,587,000 1,621,000 1,679,000 1,624,000 1,786,000 1,494,000 1,529,000 1,543,000 1,571,000 1,067,000 999,000 877,000 928,000 999,000 882,000 864,000 810,000 812,000 812,000 869,000 905,000 795,000 814,000 799,000 851,000 766,000 779,000 741,000 737,000 790,000 839,000 730,000 679,000 1,097,000 1,211,000 1,273,000 1,283,000 607,000 607,000 607,000 913,000 738,000 1,138,000 1,138,000 
        total assets
      260,354,000 258,627,000 260,825,000 264,809,000 266,825,000 261,429,000 264,712,000 271,954,000 275,317,000 271,638,000 267,264,000 268,934,000 267,638,000 268,843,000 266,890,000 263,032,000 260,350,000 260,430,000 262,031,000 256,751,000 248,751,000 241,018,000 231,216,000 227,743,000 218,782,000 212,253,000 202,126,000 192,671,000 187,789,000 180,563,000 172,989,000 170,187,000 162,936,000 159,677,000 158,990,000 178,920,000 172,330,000 175,200,000 172,066,000 173,108,000 167,341,000 161,901,000 155,810,000       134,652,000    132,749,000    115,353,000    99,313,000    
        liabilities and stockholders’ equity
                                                                       
        current liabilities:
                                                                       
        accounts payable and accrued liabilities
      16,314,000 11,112,000  13,915,000 15,555,000 16,113,000  15,085,000 17,861,000 13,542,000  13,914,000 11,999,000 9,925,000  11,694,000 11,373,000 10,325,000  9,878,000 10,143,000 9,917,000  11,116,000 9,738,000 8,208,000 10,382,000 8,111,000 9,436,000 9,252,000 7,576,000 8,500,000 9,374,000 8,388,000 6,199,000 9,891,000 9,694,000 7,523,000  9,268,000 9,627,000 6,887,000  8,665,000 8,010,000 6,995,000 10,553,000 9,938,000 7,289,000  7,932,000 6,369,000 5,072,000  6,478,000 6,151,000 5,720,000  6,898,000 6,473,000 7,581,000  7,290,000 6,326,000 6,381,000 
        accrued income and other taxes
      1,223,000 1,140,000  1,351,000 873,000 1,058,000  2,794,000 1,412,000 2,644,000  902,000 670,000 852,000  1,005,000 4,070,000 2,636,000 419,000 1,503,000 799,000 1,096,000 619,000 871,000 593,000 2,975,000 2,312,000 1,272,000 688,000 1,734,000 660,000 2,538,000 1,294,000 340,000 911,000 890,000 300,000 4,113,000 853,000 1,636,000 735,000 1,880,000 465,000 970,000 466,000 1,534,000 1,301,000 807,000 3,555,000 552,000 1,387,000 2,112,000 1,697,000 557,000 645,000 690,000 1,953,000 731,000 996,000 1,862,000 28,000 882,000 1,172,000 521,000 1,111,000 
        other non-current liabilities
      3,944,000 4,452,000  4,861,000 5,646,000 5,617,000  7,800,000 9,589,000 9,222,000  14,839,000 14,248,000 13,315,000  12,215,000 11,380,000 12,472,000  13,065,000 12,549,000 11,922,000  10,599,000 10,394,000 10,102,000 10,981,000 10,965,000 9,969,000 10,556,000 11,167,000 10,597,000 13,057,000 12,775,000 12,577,000 11,797,000 12,466,000 12,934,000  12,968,000 13,331,000 13,453,000  13,712,000 13,666,000 13,321,000 11,901,000 11,736,000 10,502,000  9,303,000 9,149,000 9,301,000  9,038,000 8,816,000 8,475,000  7,596,000 7,150,000 7,017,000  6,433,000 7,965,000 7,580,000 
        stockholders’ equity:
                                                                       
        common stock
      342,000 342,000  342,000 342,000 342,000  342,000 342,000 342,000  342,000 342,000 342,000  342,000 342,000 342,000 342,000 342,000 342,000 342,000 342,000 342,000 342,000 342,000 342,000 342,000 342,000 342,000 342,000 342,000 342,000 342,000  342,000 342,000 342,000 342,000 342,000 342,000 342,000 342,000           342,000    342,000    342,000    
        additional paid-in capital
      67,911,000 67,472,000  67,165,000 66,946,000 66,382,000  66,244,000           52,043,000    50,391,000                31,592,000    29,998,000       24,331,000    20,356,000    19,130,000    14,140,000    
        retained earnings
      377,176,000 380,665,000  379,213,000 380,152,000 377,380,000  373,163,000 368,165,000 362,313,000  352,717,000 347,954,000 342,221,000  333,523,000 329,494,000 323,733,000 317,745,000 312,563,000 305,846,000 298,690,000 291,761,000 286,520,000 279,807,000 273,240,000 261,777,000 256,035,000 247,958,000 236,300,000 230,611,000 224,810,000 215,118,000 208,977,000 202,894,000 192,129,000 185,915,000 180,290,000 174,362,000 169,883,000 163,502,000 158,130,000 152,630,000 169,228,000 163,104,000 158,002,000 149,227,000 143,453,000 137,292,000 131,286,000 132,793,000 128,244,000 123,539,000 131,769,000 128,894,000 125,151,000 121,091,000 117,554,000 114,263,000 110,865,000 107,205,000 91,708,000 101,339,000 97,690,000 94,451,000 
        treasury shares,1,660 at june 30, 2024 and 1,660 at december 31, 2023, at cost
      -206,556,000                                                                 
        total stockholders’ equity
      238,873,000 241,923,000  240,182,000 240,916,000 238,641,000  246,275,000 246,455,000 246,230,000  239,279,000 240,721,000 244,751,000  238,118,000 233,527,000 234,997,000 237,870,000 232,305,000 225,260,000 218,083,000 210,767,000 205,157,000 198,057,000 190,968,000 178,451,000 172,323,000 167,696,000 159,021,000 153,586,000 148,552,000 139,211,000 138,174,000 139,303,000 156,342,000 149,870,000 150,630,000 148,994,000 149,236,000 143,648,000 139,681,000 134,828,000 150,513,000 144,004,000 141,204,000 133,825,000 129,277,000 122,770,000 116,617,000 117,826,000 114,501,000 109,632,000 116,731,000 113,132,000 109,224,000 105,002,000 100,842,000 97,420,000 93,756,000 89,839,000 70,895,000 82,069,000 77,916,000 74,064,000 
        total liabilities and stockholders’ equity
      260,354,000 258,627,000  264,809,000 266,825,000 261,429,000  271,954,000 275,317,000 271,638,000  268,934,000 267,638,000 268,843,000  263,032,000 260,350,000 260,430,000 262,031,000 256,751,000 248,751,000 241,018,000 231,216,000 227,743,000 218,782,000 212,253,000 202,126,000 192,671,000 187,789,000 180,563,000 172,989,000 170,187,000 162,936,000 159,677,000 158,990,000 178,920,000 172,330,000 175,200,000 172,066,000 173,108,000 167,341,000 161,901,000 155,810,000       134,652,000    132,749,000    115,353,000    95,772,000    
        treasury shares,1,660 at march 31, 2024 and 1,660 at december 31, 2023, at cost
       -206,556,000                                                                
        total current assets
        114,765,000    119,397,000    136,571,000    112,319,000 113,157,000   132,338,000    122,265,000                90,319,000    56,747,000       51,981,000    56,202,000    49,107,000    32,609,000    
        less: accumulated depreciation
        161,098,000    146,888,000    135,245,000    123,977,000    116,384,000    106,689,000                                           
        patents and licenses, net of accumulated amortization of 12,768 and12,655 in 2023 and 2022, respectively
        1,072,000                                                               
        37
                                                                       
        table of contents
                                                                       
        line of credit
         4,500,000 3,835,000                                                      3,000,000   11,399,000  4,700,000 6,502,000 
        treasury shares,1,660 at september 30, 2023 and 1,659 at december 31, 2022, at cost
         -206,538,000                                                              
        treasury shares,1,660 at june 30, 2023 and 1,659 at december 31, 2022, at cost
          -206,524,000                                                             
        less: accumulated depreciation and amortization
           150,208,000  143,857,000                                                          
        treasury shares, 1,660 at march 31, 2023 and 1,659 at december 31, 2022, at cost
           -205,463,000                                                            
        patents and licenses, net of accumulated amortization of 12,655 and 12,538 in 2022 and 2021, respectively
            1,185,000                                                           
        treasury shares, 1,640 at september 30, 2022 and 1,619 at december 31, 2021, at cost
             -193,474,000                                                          
        patents
              1,242,000 1,272,000  1,332,000 1,361,000 1,391,000  1,450,000 1,480,000 1,510,000  1,569,000 1,599,000 1,629,000  1,688,000 1,718,000 1,748,000 1,808,000 1,837,000 1,868,000 2,005,000 2,068,000 2,131,000 2,256,000 2,319,000 2,471,000 2,606,000 2,673,000 2,740,000  716,000 756,000 796,000  877,000 918,000 958,000 1,067,000 1,135,000 1,181,000  1,317,000 1,385,000 1,452,000  1,644,000 1,717,000 1,790,000  1,783,000 1,853,000 1,932,000  2,030,000 2,108,000 2,186,000 
        paid-in capital
              66,167,000 61,560,000  60,764,000 60,470,000 59,760,000  53,581,000 53,020,000 52,422,000  51,660,000 51,332,000 50,772,000  50,022,000 49,635,000 49,044,000 48,360,000 48,017,000 42,029,000 37,197,000 36,945,000 36,447,000 35,542,000 35,129,000 34,356,000 33,554,000 32,853,000 31,967,000  31,203,000 30,822,000 30,358,000  28,531,000 28,146,000 27,194,000 25,155,000 24,805,000 24,478,000  23,442,000 23,286,000 23,122,000  20,166,000 19,975,000 19,824,000  18,968,000 18,674,000 18,445,000  15,367,000 15,098,000 14,477,000 
        treasury shares, 1,632 at june 30, 2022 and 1,619 at december 31, 2021, at cost
              -188,219,000                                                         
        treasury shares,1,625 at march 31, 2022 and 1,619 at december 31, 2021, at cost
               -177,985,000                                                        
        patents and licenses, net of accumulated amortization of 12,538 and 12,419 in 2021 and 2020, respectively
                1,302,000                                                       
        35
                                                                       
        treasury shares,1,619 at september 30, 2021 and 1,594 at december 31, 2020, at cost
                 -174,544,000                                                      
        treasury shares,1,609 at june 30, 2021 and 1,594 at december 31, 2020, at cost
                  -168,045,000                                                     
        treasury shares,1,592 at march 31, 2021 and 1,594 at december 31, 2020, at cost
                   -157,572,000                                                    
        assets:
                                                                       
        total eqiupment
                    94,935,000                                                   
        patents and licenses, net of accumulated amortization of 12,419 and 12,301 in 2020 and 2019, respectively
                    1,421,000                                                   
        total non- current assets
                    13,429,000                                                   
        property, plant and equipment net
                     91,053,000                                                  
        total other assets
                     13,441,000                                                  
        total current liabilities
                     12,699,000   11,274,000    10,220,000                9,364,000    7,208,000       7,752,000    6,682,000    6,213,000    6,923,000    
        treasury shares,1,591 at september 30, 2020 and 1,565 at december 31, 2019, at cost
                     -149,328,000                                                  
        treasury shares,1,591 at june 30, 2020 and 1,565 at december 31, 2019, at cost
                      -149,329,000                                                 
        treasury shares,1,580 at march 31, 2020 and 1,565 at december 31, 2019, at cost
                       -141,500,000                                                
        patents and licenses, net of accumulated amortization of 12,301 and 12,181 in 2019 and 2018, respectively
                        1,539,000                                               
        liabilities and stockholders’ equity:
                        2,019,000    2,018,000                2,013,000    2,012,000       2,010,000    2,009,000    2,008,000    2,006,000    
        accounts payable
                        5,707,000    5,082,000                4,088,000    3,843,000       2,550,000    2,529,000    2,438,000    3,387,000    
        accrued liabilities
                        5,148,000    4,519,000                4,423,000    2,900,000       4,650,000    3,596,000    3,044,000    2,654,000    
        other liabilities and deferred credits:
                                                                       
        deferred income taxes
                        8,496,000    6,687,000       580,000 580,000 580,000 573,000 573,000 573,000 1,376,000 1,376,000 1,376,000 1,376,000 623,000 623,000 623,000 623,000 755,000 755,000 755,000 625,000 625,000 625,000 625,000 596,000 596,000 596,000 596,000 596,000 596,000 596,000 596,000    607,000    
        total liabilities
                        24,161,000    20,449,000                23,072,000    20,982,000       18,035,000    16,018,000    14,511,000    24,877,000    
        commitments and contingencies
                                                                       
        accumulated other comprehensive loss
                                        -131,000                    -533,000 -533,000 -533,000 -533,000 -486,000 -486,000 -486,000 -892,000 -665,000 -892,000 -892,000 
        treasury shares, 1,565 shares in 2019 and 1,567 shares in 2018, at cost
                        -132,260,000                                               
        treasury shares, at september 30, 2019 and 1,567 at december 31, 2018, at cost
                         -132,260,000                                              
        treasury shares,1,565 at june 30, 2019 and 1,567 at december 31, 2018, at cost
                          -132,260,000                                             
        treasury shares,1,567 at march 31, 2019 and 1,567 at december 31, 2018, at cost
                           -131,721,000                                            
        patents and licenses, net of accumulated amortization of 12,181 and 12,062 in 2018 and 2017, respectively
                            1,659,000                                           
        treasury shares, 1,567 shares in 2018 and 1,568 shares in 2017, at cost
                            -131,727,000                                           
        treasury shares,1,567 at september 30, 2018 and 1,568 at december 31, 2017, at cost
                             -131,727,000                                          
        treasury shares,1,567 at june 30, 2018 and 1,568 at december 31, 2017, at cost
                              -131,727,000                                         
        treasury shares,1,584 at march 31, 2018 and 1,584 at december 31, 2017, at cost
                               -131,658,000                                        
        accumulated other comprehensive income
                                -365,000 -408,000 -787,000 -544,000 -38,000 215,000                                  
        treasury shares,1,584 at september 30, 2017 and 1,596 at december 31, 2016, at cost
                                -131,663,000                                       
        treasury shares,1,584 at june 30, 2017 and 1,596 at december 31, 2016, at cost
                                 -131,663,000                                      
        treasury shares,1,583 at march 31, 2017 and 1,596 at december 31, 2016, at cost
                                  -121,846,000                                     
        treasury shares,1,596 at september 30, 2016 and 1,596 at december 31, 2015, at cost
                                   -114,274,000                                    
        treasury shares,1,596 at june 30, 2016 and 1,582 at december 31, 2015, at cost
                                    -114,274,000                                   
        treasury shares,1,600 at march 31, 2016 and 1,596 at december 31, 2015, at cost
                                     -113,262,000                                  
        accumulated other comprehensive income/
                                      197,000 88,000                                
        treasury shares,1,595 at september 30, 2015 and 1,507 at december 31, 2014, at cost
                                      -111,988,000                                 
        treasury shares,1,582 at june 30, 2015 and 1,507 at december 31, 2014, at cost
                                       -106,362,000                                
        10,000 shares, issued 3,420 shares
                                        342,000           342,000 342,000 342,000 342,000 342,000   342,000    342,000         
        treasury shares,1,557 at march 31, 2015 and 1,507
                                                                       
        at december 31, 2014, at cost
                                        -98,158,000                               
        treasury shares,1,473 at september 30, 2014 and 1,435 at december 31, 2013, at cost
                                         -69,683,000                              
        treasury shares,1,471 at june 30, 2014 and 1,435 at december 31, 2013, at cost
                                          -69,240,000                             
        treasury shares, 1,450 at march 31, 2014 and 1,435 at december 31, 2013, at cost
                                           -61,969,000                            
        patents and licenses, net of accumulated amortization of 11,032 and 10,853 in 2013 and 2012, respectively
                                            2,808,000                           
        treasury shares, 1,428 shares in 2013 and 1,399 shares in 2012, at cost
                                            -57,302,000                           
        treasury shares,1,417 at september 30, 2013 and 1,399 at december 31, 2012, at cost
                                             -52,192,000                          
        treasury shares, 1,412 at june 30, 2013 and 1,399 at december 31, 2012, at cost
                                              -51,000                         
        treasury shares,1,404 at march 31, 2013 and 1,399 at december 31, 2012, at cost
                                               -49,149,000                        
        patents and licenses, net of accumulated amortization of 10,853 and 10,691 in 2012 and 2011, respectively
                                                837,000                       
        treasury shares, 1,399 shares in 2012 and 1,404 shares in 2011, at cost
                                                -48,142,000                       
        prepaid expenses
                                                 1,490,000 2,218,000 865,000 1,467,000 2,780,000 888,000  1,215,000 1,416,000 743,000  1,094,000 1,369,000 644,000  1,057,000 1,167,000 771,000  1,029,000 1,227,000 530,000 
        common shares, par value 0.10 per share; authorized 10,000 shares, issued 3,420 shares
                                                 342,000 342,000      342,000 342,000   342,000 342,000   342,000 342,000 342,000  342,000 342,000 342,000 
        treasury shares,1,406 at september 30, 2012 and 1,404 at december 31, 2011, at cost
                                                 -47,588,000                      
        treasury shares,1,406 at june 30, 2012 and 1,404 at december 31, 2011, at cost
                                                  -47,588,000                     
        common shares, par value 0.10 per share; authorized
                                                                       
        treasury shares,1,410 at march 31, 2012 and 1,404
                                                                       
        at december 31, 2011, at cost
                                                   -44,334,000                    
        treasury shares,1,404 at september 30, 2011 and 1,404
                                                                       
        at december 31, 2010, at cost
                                                    -40,899,000 -39,323,000 -39,342,000                 
        treasury shares,1,396 at june 30, 2011 and 1,404
                                                                       
        treasury shares,1,404 at march 31, 2011 and 1,404
                                                                       
        of 36 and 61 in 2010 and 2009, respectively
                                                       11,521,000                
        patents and licenses, net of accumulated amortization of 10,419 and
                                                                       
        10,147 in 2010 and 2009, respectively
                                                       1,249,000                
        treasury shares, 1,404 shares in 2010 and 1,440 shares
                                                                       
        in 2009, at cost
                                                       -39,342,000                
        treasury shares,1,408 at september 30, 2010 and 1,440 at december 31, 2009, at cost
                                                        -38,751,000               
        treasury shares,1,398 at june 30, 2010 and 1,440 at december 31, 2009, at cost
                                                         -37,371,000              
        treasury shares,1,399 at march 31, 2010 and 1,440
                                                                       
        at december 31, 2009, at cost
                                                          -37,371,000             
        patents and licenses, net of accumulated amortization of 10,147 and 9,805 in 2009 and 2008, respectively
                                                           1,520,000            
        treasury shares, 1,440 shares in 2009 and 1,452 shares in 2008, at cost
                                                           -35,736,000            
        treasury shares, 1,440 at september 30, 2009 and 1,452 at december 31, 2008, at cost
                                                            -35,737,000           
        treasury shares,1,441 at june 30, 2009 and 1,452 at december 31, 2008, at cost
                                                             -35,711,000          
        treasury shares,1,441 at march 31, 2009 and 1,452
                                                                       
        at december 31, 2008, at cost
                                                              -35,722,000         
        patents and licenses, net of accumulated amortization of 9,805 and 9,507 in 2008 and 2007, respectively
                                                               1,863,000        
        treasury shares, 1,452 shares in 2008 and 1,509 shares in 2007, at cost
                                                               -35,651,000        
        treasury shares,1,453 at september 30, 2008 and 1,509 at december 31, 2007, at cost
                                                                -35,667,000       
        treasury shares,1,453 at june 30, 2008 and 1,509 at december 31, 2007, at cost
                                                                 -35,639,000      
        treasury shares,1,459 at march 31, 2008 and 1,509 at december 31, 2007, at cost
                                                                  -35,667,000     
        patents and licenses, net of accumulated amortization of 9,507 and 9,195 in 2007 and 2006, respectively
                                                                   2,011,000    
        7,007
                                                                   6,555,000    
        treasury shares, 1,509 shares in 2007 and 1,546 shares in 2006, at cost
                                                                   -34,403,000    
        treasury shares,1,518 at september 30, 2007 and 1,546 at december 31, 2006, at cost
                                                                    -34,314,000   
        treasury shares,1,520 at june 30, 2007 and 1,546 at december 31, 2006, at cost
                                                                     -34,322,000  
        treasury shares,1,537 at march 31, 2007 and 1,546 at december 31, 2006, at cost
                                                                      -34,314,000 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2024-06-30 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 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 2009-06-30 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 
                                                                          
          cash flows from operating activities:
                                                                          
          net income
        402,000 2,792,000 6,424,000 2,939,000 6,563,000 3,485,000 8,322,000 8,839,000 9,348,000 8,499,000 8,127,000 8,277,000 8,925,000 7,726,000 7,370,000 7,243,000 8,604,000 8,898,000 8,064,000 9,595,000 9,664,000 9,438,000 7,749,000 9,221,000 8,798,000 8,487,000 8,646,000 7,971,000 10,026,000 9,950,000 5,571,000 7,614,000 7,451,000 6,945,000 28,902,125 -15,052,125 7,473,000 7,602,000 6,040,000 7,686,000 6,881,000 7,201,000 5,769,000 7,673,000 4,894,000 7,259,000 6,099,000 5,377,000 5,388,000 6,773,000 7,019,000 6,858,000  5,399,000 5,432,000 4,697,000 4,657,000 4,134,000 3,884,000 3,992,000 4,135,000 3,656,000 3,142,000 4,109,000 3,619,000 3,136,000 
          adjustments to reconcile net income to net cash from operating activities:
                                                                          
          depreciation and amortization
        4,016,000 3,943,000 4,008,000 3,826,000 3,755,000 3,509,000 3,473,000 3,473,000 3,446,000 3,420,000 3,358,000 3,317,000 3,117,000 3,093,000 3,135,000 2,943,000 2,811,000 2,763,000 2,892,000 2,752,000 2,663,000 2,546,000 2,421,000 2,247,000 2,272,000 2,183,000 2,219,000 2,235,000 2,124,000 2,099,000 2,298,000 2,213,000 2,230,000 2,212,000 8,816,337 -4,496,337 2,333,000 2,170,000 2,027,000 2,238,000 2,193,000 2,265,000 2,204,000 2,117,000 2,047,000 2,001,000 1,844,000 1,718,000 1,683,000 1,698,000 1,591,000 1,572,000  1,573,000 1,946,000 1,938,000 1,624,000 1,597,000 1,665,000 1,634,000 1,557,000 1,497,000 1,470,000 1,427,000 1,332,000 1,305,000 
          deferred income taxes
        -425,000 -135,000 414,000 -682,000   -803,000 -1,856,000 195,000 -730,000 -5,299,000 521,000 906,000 186,000 967,000 812,000 1,003,000 -500,000 -113,000 514,000 781,000 627,000 -642,000 252,000 -97,000 -138,000 -2,376,000 -7,000 792,000 217,000 -131,000 -341,000 393,000 -168,000 -1,431,066 -523,934 112,000 412,000 1,465,000 -447,000 -470,000 -546,000 -315,000 -159,000 365,000 782,000 338,000 -23,000 859,000 330,000 1,204,000 191,000  253,000 -158,000 -39,000 316,000 153,000 374,000 480,000 108,000 134,000 201,000 600,000 266,000 67,000 
          stock-based compensation
        487,000 235,000 212,000 280,000 632,000 407,000 207,000 202,000 791,000 530,000 546,000 428,000 841,000 497,000 191,000 549,000 613,000 378,000 376,000 326,000 600,000 380,000 362,000 380,000 601,000 316,000 362,000 337,000 628,000 275,000 243,000 242,000 590,000 491,000 1,839,546 -1,052,546 649,000 405,000 373,000 707,000 762,000 367,000 371,000 373,000 376,000 377,000 443,000 286,000 289,000 297,000 319,000 142,000  141,000 155,000 168,000 166,000 165,000 155,000 155,000 214,000 113,000 99,000 138,000 76,000 55,000 
          net change in unrealized gains and losses on investments
        391,000 109,000 -505,000 782,000 -98,000 721,000 378,000 -764,000 308,000 167,000 -619,000 171,000 -963,000 -61,000 -1,349,000 -677,000 -354,000 1,287,000 122,000 107,000 -217,000 -147,000 256,000 -54,000 408,000 789,000                                         
          net change in accrued interest, premiums, and discounts on investments
        -28,000 -5,000 -20,000 13,000   -100,000 17,000 125,000 77,000   208,000 61,000 87,000 91,000 -143,000 77,000 -648,000 194,000                   98,000   3,000   261,000 188,000                     
          changes in operating assets and liabilities:
                                                                          
          accounts receivable
        -1,439,000 -2,087,000 261,000 403,000 -4,269,000 4,527,000 -1,913,000 5,501,000 -3,381,000 -3,135,000 4,197,000 -2,539,000 -2,447,000 -3,790,000 1,302,000 4,694,000 373,000 -3,931,000 -116,000 1,598,000 872,000 -4,226,000 3,752,000 -2,497,000 2,335,000 -3,528,000 2,507,000 105,000 989,000 -3,513,000 2,958,000 -1,291,000 2,884,000 -5,097,000 373,642 4,283,358 159,000 -4,445,000 1,437,000 -1,992,000 2,235,000 -4,478,000 2,019,000 943,000 1,525,000 342,000 -2,538,000 -1,160,000 2,432,000 1,180,000    -1,203,000 1,085,000 -1,863,000 1,439,000 -2,374,000 844,000 397,000 153,000 -2,668,000 821,000 1,174,000 -490,000 -536,000 
          inventories
        7,359,000 7,307,000 639,000 -2,694,000   -6,169,000 -5,343,000 -2,867,000 -636,000 -3,471,000 418,000 1,794,000 779,000 -1,676,000 -2,817,000 -4,553,000 841,000 -3,779,000 -3,724,000 -1,789,000 771,000 -1,400,000 331,000 -2,596,000 -553,000 570,000 41,000 389,000 -1,339,000 1,041,000 1,111,000 -699,000 -697,000 -1,747,820 -570,180 -706,000 1,275,000 386,000 -1,200,000 -883,000 -59,000 222,000 -1,305,000 733,000 387,000 745,000 -1,062,000 -1,160,000 -2,334,000    -274,000 -19,000 526,000 673,000 710,000 1,204,000 -1,142,000 -2,254,000 -590,000 341,000 -752,000 233,000 -93,000 
          prepaid expenses
        -4,652,000 345,000  1,692,000 -4,121,000 979,000  1,626,000 -2,205,000 4,000  -119,000 -5,489,000 1,483,000  -787,000 -1,859,000 1,178,000  270,000 -1,128,000 1,439,000  320,000 -855,000 1,135,000  3,021,000 -4,019,000 1,178,000  1,635,000 -2,443,000 1,562,000  -1,764,068 -1,554,000 3,320,000  514,000 -1,479,000 594,000  708,000  728,000 -1,353,000 1,448,000  1,313,000 -1,892,000 162,000  201,000 -673,000 238,000 -725,000 75,000  111,000 -473,000 789,000  198,000 -697,000 1,000,000 
          other non-current assets
        -264,000 192,000 289,000 -9,000 -182,000 382,000 34,000 33,000 -57,000 630,000 -127,000 126,000 -66,000 78,000 -17,000 -4,000 -312,000 58,000 -442,000 -40,000 23,000 34,000 58,000 -55,000 162,000 -252,000 -40,000 34,000 15,000 66,000 -40,000 -503,000 -68,000 -62,000 -102,788 262,788 -97,000 -166,000 48,000 -18,000 -54,000 2,000 56,000 19,000 -15,000 51,000 -132,000 -34,000 34,000 -38,000 56,000  48,000 -109,000 -50,000 62,000 10,000 -442,000 40,000 -146,000 -43,000 15,000 1,040,000 56,000 -91,000 
          accounts payable and accrued liabilities
        5,135,000 -1,504,000 -1,456,000 -1,507,000 2,470,000 167,000 -844,000 -2,568,000 1,847,000 318,000 -982,000 1,780,000 1,952,000 -3,406,000 1,256,000 321,000 1,048,000 -530,000 977,000 -265,000 226,000 316,000 -1,515,000 1,378,000 1,530,000 -668,000 -1,506,000 2,271,000 -1,325,000 773,000 -589,000 1,676,000 -924,000 -487,000 -491,895 1,090,895 2,189,000 -3,280,000 -412,000 197,000 2,171,000 -988,000 -757,000 -359,000 -1,922,000 655,000 1,015,000 -2,213,000 -1,345,000 615,000 2,649,000 89,000  1,563,000 1,297,000 -1,053,000 431,000 238,000         
          accrued income and other taxes
        83,000 1,034,000 -1,245,000 478,000 -185,000 984,000 -2,719,000 1,382,000 -1,232,000 2,373,000 -631,000 232,000 -182,000 416,000 -569,000 -3,065,000 1,434,000 2,217,000 -1,084,000 704,000 -297,000 477,000 -252,000 278,000 -2,382,000 2,229,000 -1,566,000 1,040,000 584,000 278,000 -1,324,000 1,074,000 -1,878,000 2,209,000 -128,837 117,837 -571,000 454,000 -433,000 590,000 -3,813,000 3,260,000 -784,000 902,000 -505,000 504,000 -1,068,000 699,000 -466,000 494,000 -2,748,000 3,003,000  -725,000 415,000 1,140,000 -1,263,000 1,222,000 -265,000 -866,000 1,833,000 -486,000 -657,000 650,000 -589,000 1,161,000 
          other non-current liabilities
        -84,000 -728,000 40,000 -103,000   74,000 68,000 172,000 330,000 81,000 70,000 28,000 317,000 -370,000 23,000 -2,095,000 95,000 -65,000 2,000 -154,000 1,066,000 272,000 -47,000 389,000 470,000 1,291,000 39,000 2,000 313,000 -120,000 53,255 -64,255 -31,000 96,000 -319,000 -222,000 2,000 -228,000 302,000 -204,000 -171,000 -736,000 7,000 6,000 448,000 -165,000 30,000 28,000  -99,000 6,000 4,000 25,000 24,000 364,000 -35,000 26,000 -124,000 285,000 -1,732,000   
          cash flows from operating activities
        10,981,000 11,498,000 10,858,000 5,418,000 -598,000 4,328,000  10,610,000 6,490,000 11,847,000  12,797,000                                                       
          cash flows from investing activities:
                                                                          
          property, plant and equipment additions
        -2,285,000 -3,175,000 -2,562,000 -3,055,000   -8,415,000 -10,074,000 -7,670,000 -7,577,000 -4,232,000 -4,344,000 -4,208,000 -3,044,000 -6,987,000 -6,099,000 -5,226,000 -3,574,000 -5,207,000 -5,262,000 -6,414,000 -3,563,000 -4,836,000 -5,073,000 -4,329,000 -3,269,000 -2,087,000 -2,168,000 -3,049,000 -2,373,000 -1,803,000 -3,544,000 -2,345,000 -2,947,000 -9,316,877 4,651,877 -1,997,000 -2,661,000 -4,030,000 -2,699,000 -2,463,000 -3,479,000 -2,790,000 -1,978,000 -2,369,000 -2,398,000 -2,858,000 -2,722,000 -3,861,000 -2,619,000    -686,000 -1,015,000 -791,000 -2,040,000 -1,175,000 -856,000 -1,041,000 -1,158,000 -2,357,000 -1,872,000 -2,263,000 -2,280,000 -1,478,000 
          purchase of investments
        -1,962,000 -3,608,000 -4,000   -10,132,000 -3,222,000 -12,313,000 -10,009,000 -5,048,000 -2,000,000 -8,718,000 -7,392,000 -5,743,000 -9,581,000 -18,052,000 -12,392,000 -29,182,000 -8,696,000 -17,625,000 -28,218,000 -1,471,000 -114,000 -1,366,000 -25,521,000 -22,481,000 -24,801,000 -2,000,000 -19,911,000 -9,001,000 -14,999,000 -5,123,000 -1,676,000     -13,740,000 -10,000,000 -9,375,000   -5,021,000 -12,536,000 -9,009,000 -5,000,000    161,000             
          proceeds from sale of investments
        99,000 228,000 1,511,000 41,000 79,000 52,000 5,000 32,000 126,000 82,000 628,000 -1,000 101,000 65,000 3,000 567,000 329,000                                               
          proceeds from maturities of investments
        1,366,000 2,519,000 1,471,000 1,173,000 7,929,000 11,574,000 11,458,000 22,448,000 14,752,000 5,226,000 10,798,000 10,145,000 5,518,000 13,728,000 5,700,000 9,449,000 6,823,000 13,951,000 12,339,000 18,871,000 21,454,000 6,667,000 6,985,000 9,878,000 13,344,000 10,691,000 26,000,000 13,000,000 4,000,000 15,000,000   13,386,600 -13,386,600 5,000,000 8,400,000 16,600,000   4,000,000 8,000,000 5,000,000 2,750,000 4,000,000 8,000,000 3,890,000 2,400,000  1,000,000 3,000,000           
          cash flows from investing activities
        -2,782,000 -4,036,000 420,000 -1,845,000    9,184,000 -5,105,000 -12,278,000  3,800,000                                                       
          cash flows from financing activities:
                                                                          
          purchase of treasury stock
          -17,000   -11,356,000 -5,090,000 -5,893,000 -3,447,000 -6,500,000   -1,794,000 -7,792,000 -9,245,000             -1,276,000 -30,667,302 25,041,302 -8,087,000 -16,985,000 -11,491,000 -457,000 -6,941,000 -4,667,000 -5,110,000 -1,174,000 -588,000 -2,730,000 -2,026,000                  
          shares tendered for employees’ withholding taxes on stock-based compensation
        -20,000       -585,000                 -153,846 154,846   1,000                           
          dividends paid
        -3,872,000 -3,872,000 -3,871,000 -3,872,000   -3,796,000 -3,837,000 -3,487,000 -3,500,000 -3,511,000 -3,511,000 -3,186,000 -3,199,000 -3,193,000 -3,201,000 -2,838,000 -2,868,000 -2,875,000 -2,875,000 -2,504,000 -2,501,000 -2,501,000 -2,501,000 -2,224,000 -2,222,000 -2,223,000 -2,222,000 -1,944,000 -1,929,000 -1,915,000 -1,916,000 -1,642,000 -1,638,000 -6,064,572 2,777,572 -1,379,000 -1,403,000 -1,457,000 -1,462,000 -1,248,000 -1,265,000 -1,280,000 -1,284,000 -21,356,000 -1,128,000 -991,000 -985,000 -988,000 -991,000    -845,000 -728,000 -12,856,000 -594,000 -594,000 -591,000 -590,000 -471,000 -471,000 -457,000 -457,000 -379,000 -377,000 
          proceeds from draw on line of credit
          1,979,000 9,088,000                                                               
          repayment of draw on line of credit
          -6,479,000 -8,423,000                                                               
          cash flows from financing activities
        -3,872,000 -3,892,000 -8,371,000 -3,224,000    -9,106,000 -9,834,000 -6,947,000  -10,011,000                                                       
          net change in cash and cash equivalents
        4,327,000 3,570,000 2,907,000 349,000   -22,394,000 10,688,000 -8,449,000 -7,378,000 8,608,000 6,586,000 -12,357,000 6,977,000 -1,546,000 -103,000 -19,981,000 -968,000 -18,625,000 14,071,000 5,559,000 -14,710,000 8,722,000 13,968,000 15,882,000 -9,955,000 9,141,000 772,000 2,694,000 -2,493,000  -7,070,000 2,870,000 -399,000 7,568,370 1,197,630 3,709,000 -4,904,000 -6,146,000 3,400,000 6,325,000 -11,363,000 -2,165,000 10,455,000 -14,342,000 13,946,000 -10,548,000 -5,647,000 5,903,000 8,943,000    5,065,000 -11,923,000 -3,985,000 -2,789,000 4,675,000 -1,789,000 6,042,000 2,533,000 1,739,000 2,486,000 760,000 -22,000 -26,000 
          cash and cash equivalents at beginning of period
        3,565,000  4,731,000  32,264,000  22,450,000  45,048,000  58,753,000  30,136,000  20,022,000  28,346,000  -20,754,225 20,775,000  28,559,000   24,590,000  10,670,000  20,694,000 12,056,000  3,531,000  333,000 
          cash and cash equivalents at end of period
        4,327,000 7,135,000  349,000 -4,254,000 4,563,000  10,688,000 -8,449,000 24,886,000  6,586,000 -12,357,000 29,427,000  -103,000 -19,981,000 44,080,000  14,071,000 5,559,000 44,043,000  13,968,000 15,882,000 20,181,000  772,000 2,694,000 17,529,000  -7,070,000 2,870,000 27,947,000  -19,556,595 3,709,000 15,871,000  3,400,000 6,325,000 17,196,000  10,455,000  13,946,000 -10,548,000 18,943,000  8,943,000 1,784,000 7,960,000  5,065,000 -11,923,000 16,709,000 -2,789,000 16,731,000  6,042,000 2,533,000 5,270,000  760,000 -22,000 307,000 
          cash paid for:
                                                                          
          income taxes
        2,223,000 11,000  513,000 2,707,000 146,000  1,834,000 2,200,000 1,752,000  445,000 5,016,000 79,000  4,319,000 145,000 54,000  526,000 2,048,000 56,000  -3,565,000 5,568,000 24,000  116,000 2,266,000 29,000  1,708,000 5,756,000 104,000 12,891,722 -5,129,722 5,051,000 87,000 4,082,000 3,708,000 8,761,000 924,000 109,000 2,604,000 3,886,000 1,874,000 4,179,000 418,000 2,884,000 2,144,000 6,623,000 270,000  3,708,000 2,938,000 89,000 3,606,000 498,000 1,165,000 2,355,000 197,000 64,000 1,138,000 1,129,000 1,980,000 -760,000 
          adjustments to reconcile net income to net cashprovided by operating activities:
                                                                          
          other
                  -2,000 -1,000 25,000 -1,000     -1,000 -20,000   51,000       16,983 -16,983   -1,000 30,000 4,000               37,000   
          prepaid expenses and other current assets
                                                                          
          cash and cash equivalents, beginning of year
                                                                          
          cash and cash equivalents, end of year
                                                                          
          income taxes, net of refunds
                                                                          
          non-cash financing activities:
                                                                          
          non-cash effect of stock option exercises
              -1,000   6,012,000             5,702,000 4,535,000                                     
          non-cash financing activities: non-cash effect of stock option exercises
                                                                          
          adjustments to reconcile net income tonet cash from operating activities:
                                                                          
          non-cash financing activities:non-cash effect of stock option exercises
                                                                          
          shares tendered for employees’ withholding taxes onstock-based compensation
                                                                          
          net change in accrued interest, premiums, and discounts
                                                                          
          on investments
                             184,000  44,000 -21,000 -104,000  -85,000 -54,000 -28,000  -43,000 33,000 5,000  -105,967 204,000 -98,000                             
          other operating activities
                     11,527,000                                                     
          adjustments to reconcile net income to net cash from operating activities
                                                                          
          net cash from used in operating activities
                                                                          
          net cash from used in investing activities
                                                                          
          net cash from used in financing activities
                                                                          
          adjustments to reconcile net income to net cash provided by operating activities:
                                                                          
          shares tendered for employees’ withholding taxes on stock-based compensation
                                  -4,460,000 -3,275,000                                    
          impairment of investment
                                         345,000                                 
          tax benefit related to stock-based compensation
                                          155,850 -149,850   8,000 -3,000   9,000 483,000 511,000 418,000                   
          bond impairment
                                                                         
          non-cash financing activities
                                                                          
          net change in cash and cash equivalent
                                                                          
          purchase of patents
                                                                          
          adjustments to reconcile net income to
                                                                          
          net cash from operating activities:
                                                                          
          exercise of stock options
                                                             343,000 445,000 18,000 28,000 497,000 109,000 89,000 248,000 204,000 
          issuance of treasury stock
                                                                         
          raw materials
                                                                          
          work in process
                                                                          
          finished goods
                                                                          
          total inventories
                                                                          
          weighted-average basic shares outstanding
                                                                          
          add: effect of dilutive securities
                                                                          
          weighted-average diluted shares outstanding
                                                                          
          earnings per share:
                                                                          
          basic
                                                                          
          diluted
                                                                          
          short-term investments:
                                                                          
          corporate bonds
                                                                          
          long-term investments
                                                                          
          ●
                                                                          
          fluid delivery
                                                                          
          cardiovascular
                                                                          
          ophthalmology
                                                                          
          total
                                                                          
          item 3.
                                                                          
          period
                                                                          
          7/1/2013 through 7/31/2013
                                                                          
          8/1/2013 through 8/31/2013
                                                                          
          9/1/2013 through 9/30/2013
                                                                          
          exhibit
                                                                          
          number
                                                                          
          3.1
                                                                          
          3.2
                                                                          
          10.1
                                                                          
          31.1
                                                                          
          31.2
                                                                          
          32.1
                                                                          
          32.2
                                                                          
          101.ins
                                                                          
          101.sch
                                                                          
          101.cal
                                                                          
          101.def
                                                                          
          101.lab
                                                                          
          101.pre
                                                                          
          atrion corporation
                                                                          
          date: october 29, 2013
                                                                          
          shares tendered for employees’ taxes on stock-based compensation
                                                     -685,000 -380,000     -501,000 -70,000        
          net change in accrued interest, premiums, and discounts on
                                                                          
          investments
                                                       113,000          35,000         
          pension charge
                                                                      82,000    
          net change in accrued interest on investments
                                                         -41,000    -71,000 -195,000 65,000           
          tax benefit related to stock options
                                                         60,000    36,000 11,000 1,049,000 -7,000 80,000 3,000 151,000 88,000 1,393,000 303,000 46,000 288,000 168,000 
          shares tendered for employees’ taxes on stock-based
                                                                          
          compensation
                                                                          
          adjustments to reconcile net income to net cash
                                                                          
          provided by operating activities:
                                                                          
          line of credit advances
                                                                     5,600,000 7,722,000 6,104,000 
          line of credit repayments
                                                                      -10,300,000 -9,524,000 -11,001,000 
          interest
                                                                      3,000 51,000 100,000 158,000 
          purchases of investments
                                                                          
          gain on disposal of discontinued operations
                                                                          
          net cash from continuing operations
                                                                     3,547,000 4,403,000 8,045,000   
          net cash from discontinued operations
                                                                          
          property, plant and equipment sales
                                                                          
          accounts payable and current liabilities
                                                                   424,000 -1,107,000 1,232,000  965,000 -56,000 350,000 
          shares tendered for employees’ taxes on stock option exercises
                                                                          
          taxes paid on cashless exercise of stock options
                                                                     -870,000