7Baggers

Neogen Corporation
(NASDAQ:NEOG) 

NEOG stock logo

Neogen Corporation, together with its subsidiaries, develops, manufactures, and markets various products for food and animal safety worldwide. It operates through two segments, Food Safety and Animal Safety. The Food Safety segment offers diagnostic test kits and related products to detect dangerous...

Founded: 1982
Full Time Employees: 1,764
Sector: Healthcare
Industry: Diagnostics & Research

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    Unit: USD2026-02-28 2025-11-30 2025-08-31 2025-05-31 2025-02-28 2024-11-30 2024-08-31 2024-05-31 2024-02-29 2023-11-30 2023-08-31 2023-05-31 2023-02-28 2022-11-30 2022-08-31 2022-05-31 2022-02-28 2021-11-30 2021-08-31 2021-05-31 2021-02-28 2020-11-30 2020-08-31 2020-05-31 2020-02-29 2019-11-30 2019-08-31 2019-05-31 2019-02-28 2018-11-30 2018-08-31 2018-05-31 2018-02-28 2017-11-30 2017-08-31 2017-05-31 2017-02-28 2016-11-30 2016-08-31 2016-05-31 2016-02-29 2015-11-30 2015-08-31 2015-05-31 2015-02-28 2014-11-30 2014-08-31 2014-05-31 2014-02-28 2013-11-30 2013-08-31 2013-05-31 2013-02-28 2012-11-30 2012-08-31 2012-05-31 2012-02-29 2011-11-30 2011-08-31 2011-05-31 2011-02-28 2010-11-30 2010-08-31 2010-05-31 2010-02-28 2009-11-30 2009-08-31 2009-05-31 2009-02-28 2008-11-30 2008-08-31 2008-05-31 2008-02-29 2007-11-30 2007-08-31 2007-05-31 2007-02-28 2006-11-30 2006-08-31 2006-05-31 2006-02-28 2005-11-30 2005-08-31 2005-05-31 2005-02-28 2004-11-30 2004-08-31 2004-05-31 2004-02-29 2003-11-30 2003-08-31 2003-05-31 
                                                                                                
      revenues
                                                                                                
      product revenues
    186,200,000 199,005,000 184,138,000 200,760,000 196,488,000 207,549,000 192,518,000 211,373,000 202,178,000 203,869,000 204,401,000 214,279,000 190,688,000 203,317,000 106,792,000 112,963,000 101,566,000 106,111,000 104,013,000 68,322,000 92,816,000 92,537,000 87,935,000 61,767,750 77,736,000 87,387,000 81,948,000 62,474,250 77,375,000 89,562,000 82,960,000 91,256,000 78,142,000 85,590,000 80,567,000 55,792,500 73,964,000 76,961,000 72,245,000 75,439,000 64,377,000 68,717,000 65,036,000 68,734,000 59,172,000 60,779,000 59,255,000 60,536,000 54,623,000 53,228,000 51,346,000                                          
      service revenues
    25,000,000 25,686,000 25,051,000 24,699,000 24,492,000 23,709,000 24,446,000 25,421,000 26,634,000 25,760,000 24,586,000 27,531,000 27,567,000 26,716,000 25,557,000 27,130,000 26,678,000 24,406,000 24,292,000 16,936,500 23,893,000 22,463,000 21,390,000 15,506,250 22,133,000 20,416,000 19,476,000 13,631,750 20,325,000 17,536,000 16,666,000 18,031,000 17,750,000 16,227,000 14,689,000 9,894,250 14,421,000 13,756,000 11,400,000 14,640,000 12,348,000 10,893,000 9,824,000 9,877,000 9,237,000 7,676,000 8,344,000 6,726,000 7,373,000 6,371,000 7,202,000                                          
      total revenues
    211,200,000 224,691,000 209,189,000 225,459,000 220,980,000 231,258,000 216,964,000 236,794,000 228,812,000 229,629,000 228,987,000 241,810,000 218,255,000 230,033,000 132,349,000 140,093,000 128,244,000 130,517,000 128,305,000 127,425,000 116,709,000 115,000,000 109,325,000 109,074,000 99,869,000 107,803,000 101,424,000 109,762,000 97,700,000 107,098,000 99,626,000 109,287,000 95,892,000 101,817,000 95,256,000 -262,385,406 88,385,000 90,717,000 83,645,000 90,079,000 76,725,000 79,610,000 74,860,000 78,611,000 68,409,000 68,455,000 67,599,000 67,262,000 61,996,000 59,599,000 58,548,000                                          
      yoy
    -4.43% -2.84% -3.58% -4.79% -3.42% 0.71% -5.25% -2.07% 4.84% -0.18% 73.02% 72.61% 70.19% 76.25% 3.15% 9.94% 9.88% 13.49% 17.36% 16.82% 16.86% 6.68% 7.79% -0.63% 2.22% 0.66% 1.80% 0.43% 1.89% 5.19% 4.59% -141.65% 8.49% 12.24% 13.88% -391.28% 15.20% 13.95% 11.74% 14.59% 12.16% 16.30% 10.74% 16.87% 10.34% 14.86% 15.46%                                              
      qoq
    -6.00% 7.41% -7.22% 2.03% -4.44% 6.59% -8.37% 3.49% -0.36% 0.28% -5.30% 10.79% -5.12% 73.81% -5.53% 9.24% -1.74% 1.72% 0.69% 9.18% 1.49% 5.19% 0.23% 9.22% -7.36% 6.29% -7.60% 12.35% -8.78% 7.50% -8.84% 13.97% -5.82% 6.89% -136.30% -396.87% -2.57% 8.45% -7.14% 17.41% -3.62% 6.35% -4.77% 14.91% -0.07% 1.27% 0.50% 8.49% 4.02% 1.80%                                           
      cost of revenues
                                                                                                
      cost of product revenues
    96,000,000 102,653,000 97,932,000 117,972,000 95,815,000 99,837,000 97,836,000 107,623,000 98,144,000 98,353,000 96,959,000 102,359,000 94,377,000 102,530,000 55,441,000 60,367,000 56,550,000 56,374,000 54,726,000 36,334,000 49,466,000 49,275,000 46,595,000 32,164,500 41,068,000 45,559,000 42,031,000 33,039,250 41,902,000 47,305,000 42,950,000 49,282,000 40,352,000 43,349,000 41,084,000 28,310,250 38,816,000 38,890,000 35,535,000 40,208,000 32,920,000 34,006,000 30,630,000 34,528,000 29,133,000 29,514,000 28,280,000 30,933,000 26,933,000 25,792,000 23,510,000                                          
      cost of service revenues
    16,200,000 15,354,000 16,287,000 14,632,000 14,900,000 18,091,000 14,202,000 15,689,000 13,785,000 14,502,000 15,267,000 16,269,000 15,914,000 14,964,000 14,638,000 14,727,000 14,282,000 13,549,000 13,571,000 9,583,250 13,394,000 12,511,000 12,428,000 8,972,000 13,471,000 11,218,000 11,199,000 7,719,250 11,170,000 9,760,000 9,947,000 10,416,000 10,019,000 9,197,000 8,301,000 6,139,000 8,689,000 8,236,000 7,631,000 8,018,000 8,609,000 7,380,000 6,438,000 6,385,000 5,573,000 4,733,000 5,243,000 4,291,000 4,358,000 4,316,000 4,674,000                                          
      total cost of revenues
    112,200,000 118,007,000 114,219,000 85,170,250 110,715,000 117,928,000 112,038,000 84,252,500 111,929,000 112,855,000 112,226,000 118,628,000 110,291,000 117,494,000 70,079,000 75,094,000 70,832,000 69,923,000 68,297,000 69,734,000 62,860,000 61,786,000 59,023,000 57,345,000 54,539,000 56,777,000 53,230,000 59,232,000 53,072,000 57,065,000 52,897,000 59,698,000 50,371,000 52,546,000 49,385,000 34,449,250 47,505,000 47,126,000 43,166,000 48,226,000 41,529,000 41,386,000 37,068,000 40,913,000 34,706,000 34,247,000 33,523,000 35,224,000 31,291,000 30,108,000 28,184,000                                          
      gross profit
    99,000,000 106,684,000 94,970,000 92,855,000 110,265,000 113,330,000 104,926,000 113,482,000 116,883,000 116,774,000 116,761,000                                                                                  
      yoy
    -10.22% -5.86% -9.49% -18.18% -5.66% -2.95% -10.14%                                                                                      
      qoq
    -7.20% 12.33% 2.28% -15.79% -2.70% 8.01% -7.54% -2.91% 0.09% 0.01%                                                                                   
      gross margin %
    46.88% 47.48% 45.40% 41.18% 49.90% 49.01% 48.36% 47.92% 51.08% 50.85% 50.99% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN%  
      operating expenses
                                                                                                
      sales and marketing
    38,200,000 42,290,000 45,048,000 46,859,000 44,595,000 46,545,000 45,799,000 44,337,000 47,920,000 44,832,000 45,783,000 42,893,000 38,598,000 36,348,000 23,383,000 21,384,000 21,477,000 21,188,000 20,555,000 20,505,000 18,693,000 17,729,000 16,516,000 16,469,000 17,675,000 17,988,000 17,543,000 17,776,000 16,722,000 18,499,000 17,233,000 18,578,000 17,492,000 17,815,000 17,024,000 -45,761,576 15,340,000 15,687,000 14,797,000 15,872,000 13,953,000 14,203,000 13,571,000 14,140,000 12,655,000 12,743,000 12,220,000 12,903,000 11,986,000 11,219,000 10,324,000 10,559,000 10,533,000 9,941,000 9,758,000 9,364,000 8,929,000 8,631,000 8,103,000 7,960,000 7,044,000 7,504,000 7,512,000 7,178,000 6,795,000 6,405,000 5,972,000 22,888,947,000 5,422,000 6,013,000 5,619,000 20,632,919,000 4,947,000 5,456,000 4,678,000 18,449,483,000 4,612,000 4,665,000 4,240,000 4,430,000 3,753,000 3,891,000 3,725,000 3,497,000 3,308,000 3,473,000 3,206,000 3,325,000 3,001,000 2,803,000 2,923,000  
      general and administrative
    60,300,000 65,208,000 60,888,000 52,943,000 55,782,000 57,771,000 51,671,000 50,960,000 52,087,000 51,721,000 45,121,000 49,810,000 46,424,000 77,001,000 27,944,000 21,757,000 24,997,000 22,605,000 13,383,000 12,854,000 15,146,000 12,184,000 11,013,000 11,858,000 10,789,000 10,985,000 10,699,000 10,454,000 10,018,000 10,121,000 10,198,000 9,198,000 9,280,000 10,491,000 9,325,000 -25,059,786 8,548,000 8,284,000 8,262,000 8,108,000 7,538,000 6,791,000 6,753,000 6,604,000 6,522,000 6,094,000 6,013,000 6,314,000 6,320,000 6,280,000 5,536,000 5,706,000 5,132,000 4,895,000 4,482,000 4,178,000 4,660,000 4,173,000 4,012,000 3,859,000 3,677,000 3,714,000 3,862,000 4,015,000 3,391,000 3,191,000 2,890,000 11,475,618,000 2,769,000 3,032,000 2,580,000 10,919,091,000 2,717,000 2,862,000 2,330,000 9,294,484,000 2,379,000 2,333,000 1,804,000 1,939,000 1,545,000 1,450,000 1,240,000 1,772,000 1,169,000 1,529,000 1,151,000 1,599,000 1,368,000 1,268,000 787,000  
      goodwill impairment
       597,931,000  461,390,000                                                                                       
      research and development
    3,800,000 4,563,000 5,125,000 6,307,000 4,473,000 5,108,000 5,199,000 5,145,000 4,853,000 5,756,000 6,722,000 7,054,000 7,258,000 6,846,000 4,881,000 3,831,000 4,561,000 4,332,000 4,325,000 4,077,000 4,236,000 4,056,000 3,878,000 3,458,000 3,823,000 3,781,000 3,688,000 3,570,000 3,249,000 3,167,000 2,819,000 1,954,000 2,836,000 2,967,000 3,098,000 -8,076,615 2,641,000 2,768,000 2,678,000 2,248,000 2,451,000 2,618,000 2,573,000 2,332,000 2,366,000 2,474,000 2,404,000 1,830,000 2,106,000 2,303,000 2,086,000 1,880,000 1,982,000 1,993,000 1,926,000 1,660,000 1,754,000 1,710,000 1,512,000 1,585,000 1,802,000 1,641,000 1,797,000 1,571,000 1,526,000 1,698,000 1,464,000 4,551,564,000 1,265,000 1,219,000 952,000 3,636,185,000 1,018,000 1,055,000 742,000 3,292,350,000 937,000 1,015,000 698,000 649,000 766,000 802,000 771,000 596,000 704,000 711,000 718,000 773,000 792,000 652,000 676,000  
      total operating expenses
    102,300,000 112,061,000 111,061,000 704,040,000 104,850,000 570,814,000 102,669,000 100,442,000 104,860,000 102,309,000 97,626,000 99,757,000 92,280,000 120,195,000 56,208,000 46,972,000 51,035,000 48,125,000 38,263,000 25,862,750 38,075,000 33,969,000 31,407,000 24,242,750 32,287,000 32,754,000 31,930,000 23,006,500 29,989,000 31,787,000 30,250,000 22,582,000 29,608,000 31,273,000 29,447,000 19,751,250 26,529,000 26,739,000 25,737,000                                                      
      operating income
    -3,300,000 -5,377,000 -16,091,000 -611,185,000 5,415,000 -457,484,000 2,257,000 13,040,000 12,023,000 14,465,000 19,135,000 23,425,000 15,684,000 -7,656,000 6,062,000 18,027,000 6,377,000 12,469,000 21,745,000 20,255,000 15,774,000 19,245,000 18,895,000 19,944,000 13,043,000 18,272,000 16,264,000 18,730,000 14,639,000 18,246,000 16,479,000 19,859,000 15,913,000 17,998,000 16,424,000 -45,880,055 14,351,000 16,852,000 14,742,000 15,625,000 11,254,000 14,612,000 14,895,000 14,622,000 12,160,000 12,897,000 13,439,000 10,991,000 10,293,000 9,689,000 12,418,000 10,236,000 9,666,000 10,477,000 10,328,000 8,697,000 7,549,000 8,143,000 9,350,000 8,545,000 8,065,000 9,629,000 9,596,000 6,958,000 5,749,000 7,228,000 6,944,000 20,472,915,000 3,571,000 5,861,000 5,653,000 18,005,674,000 3,981,000 4,798,000 4,547,000 13,493,704,000 3,022,000 3,696,000 3,578,000 3,135,000 2,458,000 3,347,000 3,105,000 2,181,000 1,777,000 2,381,000 2,430,000 1,623,000 1,765,000 2,280,000 1,874,000  
      yoy
    -160.94% -98.82% -812.94% -4787.00% -54.96% -3262.70% -88.20% -44.33% -23.34% -288.94% 215.65% 29.94% 145.95% -161.40% -72.12% -11.00% -59.57% -35.21% 15.08% 1.56% 20.94% 5.33% 16.18% 6.48% -10.90% 0.14% -1.30% -5.69% -8.01% 1.38% 0.33% -143.28% 10.88% 6.80% 11.41% -393.63% 27.52% 15.33% -1.03% 6.86% -7.45% 13.30% 10.83% 33.04% 18.14% 33.11% 8.22% 7.38% 6.49% -7.52% 20.24% 17.70% 28.04% 28.66% 10.46% 1.78% -6.40% -15.43% -2.56% 22.81% 40.29% 33.22% 38.19% -99.97% 60.99% 23.32% 22.84% 13.70% -10.30% 22.16% 24.32% 33.44% 31.73% 29.82% 27.08% 430321.18% 22.95% 10.43% 15.23% 43.74% 38.32% 40.57% 27.78% 34.38% 0.68% 4.43% 29.67%      
      qoq
    -38.63% -66.58% -97.37% -11386.89% -101.18% -20369.56% -82.69% 8.46% -16.88% -24.41% -18.31% 49.36% -304.86% -226.29% -66.37% 182.69% -48.86% -42.66% 7.36% 28.41% -18.04% 1.85% -5.26% 52.91% -28.62% 12.35% -13.17% 27.95% -19.77% 10.72% -17.02% 24.80% -11.58% 9.58% -135.80% -419.70% -14.84% 14.31% -5.65% 38.84% -22.98% -1.90% 1.87% 20.25% -5.71% -4.03% 22.27% 6.78% 6.23% -21.98% 21.32% 5.90% -7.74% 1.44% 18.75% 15.21% -7.29% -12.91% 9.42% 5.95% -16.24% 0.34% 37.91% 21.03% -20.46% 4.09% -99.97% 573210.42% -39.07% 3.68% -99.97% 452190.23% -17.03% 5.52% -99.97% 446415.68% -18.24% 3.30% 14.13% 27.54% -26.56% 7.79% 42.37% 22.73% -25.37% -2.02% 49.72% -8.05% -22.59% 21.66%   
      operating margin %
    -1.56% -2.39% -7.69% -271.08% 2.45% -197.82% 1.04% 5.51% 5.25% 6.30% 8.36% 9.69% 7.19% -3.33% 4.58% 12.87% 4.97% 9.55% 16.95% 15.90% 13.52% 16.73% 17.28% 18.28% 13.06% 16.95% 16.04% 17.06% 14.98% 17.04% 16.54% 18.17% 16.59% 17.68% 17.24% 17.49% 16.24% 18.58% 17.62% 17.35% 14.67% 18.35% 19.90% 18.60% 17.78% 18.84% 19.88% 16.34% 16.60% 16.26% 21.21% 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 income
                 -6,443,000    235,000 -221,000 1,462,000 -91,000 -465,000 193,000 5,614,000 -393,000 -317,000 -122,000 4,058,000 649,000 427,000 -269,000 478,250 844,000 626,000 443,000 -1,096,272 1,105,000 -377,000 369,000 -182,500 265,000 -471,000 -524,000 -147,250 -508,000 -64,000 -16,000 -152,500 -68,000 11,000 -552,000 130,500 401,000 75,000 47,000 71,250 385,000 -32,000 -68,000 -41,000 -17,000 -47,000 -101,000 -250 -2,000 -34,000 33,000 213,000 542,000 171,000 140,000                      
      interest expense
    -13,900,000 -14,848,000 -16,442,000 -17,129,000 -17,737,000 -18,141,000 -18,615,000 -18,621,000 -18,285,000 -18,032,000 -18,456,000 -17,954,000 -17,460,000 -20,545,000                                                              -14,989,000   -11,000 -168,000 -115,000   -8,000 -23,000 -29,000 -24,000 -8,000 -32,000    
      gain on sale of business
      76,390,000                                                                                          
      other
    -3,100,000 -731,000 -967,000 -3,532,000 1,896,000 -1,721,000 -244,000                                                                 28,750 -84,000 206,000 -6,000 -20,250 -31,000 -58,000 8,000 58,000 42,000 46,000 144,000 63,500 25,000 218,000 11,000 34,000 7,000 44,000 85,000  
      total other income
    -17,000,000 -14,987,000 59,899,000        -17,472,000 -15,775,000 -17,944,000 -26,435,000 597,000 882,000 266,000 459,000 -18,000 302,000 203,000 90,000 915,000 887,250 1,207,000 954,000 1,388,000 1,024,250 1,984,000 1,455,000 658,000 808,750 1,368,000 1,055,000 812,000 447,000 1,376,000 -81,000 492,000                                                      
      income before taxes
    -20,300,000 -20,364,000 43,808,000    -15,609,000    1,663,000 7,650,000 -2,260,000 -34,091,000 6,659,000 10,324,500 6,643,000 12,928,000 21,727,000 13,780,500 15,977,000 19,335,000 19,810,000 12,782,000 14,250,000 19,226,000 17,652,000 13,365,250 16,623,000 19,701,000 17,137,000 13,392,500 17,281,000 19,053,000 17,236,000 11,933,250 15,727,000 16,771,000 15,234,000                                                      
      income tax expense
    -3,300,000 -4,440,000 7,470,000 -19,006,000 1,230,000  -3,000,000                                                                                      
      net income
    -17,000,000 -15,924,000 36,338,000 -612,196,000 -10,957,000 -456,282,000 -12,609,000 -5,415,000 -2,022,000 -3,487,000 1,503,000 5,572,000 8,190,000 -41,841,000 5,209,000 14,959,000 5,443,000 10,828,000 17,077,000 15,760,000 13,377,000 15,885,000 15,860,000 16,347,000 12,200,000 16,276,000 14,652,000 15,815,000 13,073,000 16,051,000 15,237,000 17,545,000 16,581,000 17,153,000 11,936,000 -31,439,027 10,377,000 11,171,000 9,934,000 9,819,000 8,289,000 9,142,000 9,289,000 9,433,000 7,409,000 7,826,000 8,909,000 7,553,000 6,553,000 6,228,000 7,697,000 6,977,000 6,610,000 6,755,000 6,700,000 6,028,000 5,244,000 5,237,000 6,004,000 5,961,000 4,943,000 6,110,000 5,824,000 4,634,000 3,881,000 4,610,000 4,395,000 13,863,543,000 2,823,000 3,901,000 3,733,000 12,089,077,000 2,658,000 3,254,000 3,011,000 9,118,178,000 1,990,000 2,426,000 2,406,000 1,956,000 1,632,000 2,213,000 2,140,000 1,445,000 1,214,000 1,672,000 1,584,000 1,071,000 1,183,000 1,543,000 1,302,000  
      yoy
    55.15% -96.51% -388.19% 11205.56% 441.89% 12985.23% -938.92% -197.18% -124.69% -91.67% -71.15% -62.75% 50.47% -486.41% -69.50% -5.08% -59.31% -31.84% 7.67% -3.59% 9.65% -2.40% 8.24% 3.36% -6.68% 1.40% -3.84% -9.86% -21.16% -6.42% 27.66% -155.81% 59.79% 53.55% 20.15% -420.19% 25.19% 22.19% 6.94% 4.09% 11.88% 16.82% 4.27% 24.89% 13.06% 25.66% 15.75% 8.26% -0.86% -7.80% 14.88% 15.74% 26.05% 28.99% 11.59% 1.12% 6.09% -14.29% 3.09% 28.64% 27.36% 32.54% 32.51% -99.97% 37.48% 18.17% 17.73% 14.68% 6.21% 19.88% 23.98% 32.58% 33.57% 34.13% 25.15% 466064.52% 21.94% 9.62% 12.43% 35.36% 34.43% 32.36% 35.10% 34.92% 2.62% 8.36% 21.66%      
      qoq
    6.76% -143.82% -105.94% 5487.26% -97.60% 3518.70% 132.85% 167.80% -42.01% -332.00% -73.03% -31.97% -119.57% -903.24% -65.18% 174.83% -49.73% -36.59% 8.36% 17.81% -15.79% 0.16% -2.98% 33.99% -25.04% 11.08% -7.35% 20.97% -18.55% 5.34% -13.15% 5.81% -3.33% 43.71% -137.97% -402.97% -7.11% 12.45% 1.17% 18.46% -9.33% -1.58% -1.53% 27.32% -5.33% -12.16% 17.95% 15.26% 5.22% -19.09% 10.32% 5.55% -2.15% 0.82% 11.15% 14.95% 0.13% -12.77% 0.72% 20.59% -19.10% 4.91% 25.68% 19.40% -15.81% 4.89% -99.97% 490992.56% -27.63% 4.50% -99.97% 454718.55% -18.32% 8.07% -99.97% 458099.90% -17.97% 0.83% 23.01% 19.85% -26.25% 3.41% 48.10% 19.03% -27.39% 5.56% 47.90% -9.47% -23.33% 18.51%   
      net income margin %
    -8.05% -7.09% 17.37% -271.53% -4.96% -197.30% -5.81% -2.29% -0.88% -1.52% 0.66% 2.30% 3.75% -18.19% 3.94% 10.68% 4.24% 8.30% 13.31% 12.37% 11.46% 13.81% 14.51% 14.99% 12.22% 15.10% 14.45% 14.41% 13.38% 14.99% 15.29% 16.05% 17.29% 16.85% 12.53% 11.98% 11.74% 12.31% 11.88% 10.90% 10.80% 11.48% 12.41% 12.00% 10.83% 11.43% 13.18% 11.23% 10.57% 10.45% 13.15% 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 share
                                                                                                
      basic
    -0.08 -0.07 0.17 -2.82 -0.05 -2.1    -0.02 0.01 0.04 0.04 -0.19 0.05 0.14 0.05 0.1 0.16 0.213 0.25 0.3 0.3 0.205 0.23 0.31 0.28                             0.26 0.22 0.22 0.26 0.25 0.21 0.27 0.26 0.2 0.17 0.21 0.3 0.23 0.19 0.27 0.26 0.21 0.19 0.23 0.21 0.25 0.22 0.26 0.27 0.23 0.2 0.27 0.26 0.18 0.15 0.21 0.2 0.128 0.15 0.2 0.21  
      diluted
    -0.08 -0.07 0.17 -2.82 -0.05 -2.1    -0.02 0.01 0.04 0.04 -0.19 0.05 0.14 0.05 0.1 0.16 0.213 0.25 0.3 0.3 0.205 0.23 0.31 0.28                             0.25 0.22 0.22 0.25 0.25 0.21 0.26 0.25 0.2 0.17 0.2 0.29 0.23 0.19 0.26 0.25 0.21 0.18 0.22 0.21 0.24 0.21 0.26 0.26 0.22 0.19 0.26 0.25 0.17 0.14 0.2 0.19 0.12 0.14 0.19 0.2  
      weighted-average shares outstanding
                       107,120    52,860    52,425        38,374                                                         
      basic
    217.7 217,408,270 217,217,836 216,894,861 217,031,907 216,813,788 216,695,348 216,481,878 216,597,777 216,410,493 216,309,084 188,881 216,218 216,134 107,837 107,684 107,818 107,641 107,490  53,413 53,129 52,992                                                                      
      diluted
    217.7 217,408,270 217,334,926 216,894,861 217,031,907 216,813,788 216,695,348 216,481,878 216,597,777 216,410,493 216,846,106 188,881 216,399 216,134 107,857 108,020 108,133 108,122 108,109  53,695 53,404 53,285                                                                      
      interest income
     592,000 918,000 644,000 699,000 774,000 993,000 1,097,000 1,612,000 1,863,000 1,790,000 1,003,000 640,000 553,000 969,000 526,000 314,000 224,000 203,000 392,750 294,000 555,000 722,000 1,095,250 1,600,000 1,271,000 1,510,000 822,500 1,335,000 1,028,000 927,000 721,000 524,000 429,000 369,000 172,500 271,000 296,000 123,000 84,000 120,000 51,000 68,000 70,000 66,000 47,000 45,000 27,000 28,000 28,000 31,000 30,000 33,000 43,000 38,000 29,000 30,000 26,000 22,000 25,000 13,000 28,000 29,000 14,000 34,000 16,000 18,000 247,805,000 60,000 69,000 65,000 441,643,000 86,000 100,000 170,000 372,781,000 99,000 63,000 57,000 18,000 19,000 27,000 16,000 1,000 2,000 2,000 2,000 11,250 2,000 20,000 23,000  
      other expense
           -1,005,250 -1,172,000 -2,043,000 -806,000 -1,984,500 -1,124,000  -372,000 -8,500 -48,000                                                                            
      total other expense
       -20,017,000 -15,142,000 -19,088,000 -17,866,000 -13,382,250 -17,845,000 -18,212,000                                                                                   
      loss before taxes
       -631,202,000 -9,727,000 -476,572,000  -1,976,500 -5,822,000 -3,747,000                                                                                   
      income tax benefit
         -20,290,000  -975,000 -3,800,000                                                                                    
      net earnings per share
                                                                                                
      basic
          -0.06 -0.005 -0.01                                                                                    
      diluted
          -0.06 -0.005 -0.01                                                                                    
      provision for income taxes
             -260,000 160,000 2,078,000 -10,450,000 7,750,000 1,450,000 3,950,000 1,200,000              1,900,000    5,300,000                                                          
      gross margin
               123,182,000 107,964,000 112,539,000 62,270,000 64,999,000 57,412,000 60,594,000 60,008,000 57,691,000 53,849,000 53,214,000 50,302,000 51,729,000 45,330,000 51,026,000 48,194,000 50,530,000 44,628,000 50,033,000 46,729,000 49,589,000 45,521,000 49,271,000 45,871,000 31,237,500 40,880,000 43,591,000 40,479,000 41,853,000 35,196,000 38,224,000 37,792,000 37,698,000 33,703,000 34,208,000 34,076,000 32,038,000 30,705,000 29,491,000 30,364,000 28,381,000 27,313,000 27,306,000 26,494,000 23,899,000 22,892,000 22,657,000 22,977,000 21,949,000 20,588,000 22,488,000 22,767,000 19,722,000 17,461,000 18,522,000 17,270,000 59,389,044,000 13,027,000 16,125,000 14,804,000 53,193,869,000 12,663,000 14,171,000 12,297,000 44,530,021,000 10,950,000 11,709,000 10,320,000 10,153,000 8,522,000 9,490,000 8,841,000 8,046,000 6,958,000 8,094,000 7,505,000 5,047,250 6,926,000 7,003,000 6,260,000  
      benefit from income taxes
                     2,100,000 4,650,000 4,386,000 2,600,000 3,450,000 3,950,000 4,830,000 2,050,000 2,950,000 3,000,000 3,683,000 3,550,000 3,650,000  2,350,000 700,000 1,900,000  4,062,500 5,350,000 5,600,000 5,300,000        4,800,000                                              
      net (income) loss attributable to non-controlling interest
                                       -40,750 -90,000 -20,000 -53,000       -20,000                                               
      net income attributable to neogen
                               15,815,000 13,073,000 16,051,000 15,237,000 17,545,000 16,586,000 17,100,000 11,914,000 -31,276,207 10,287,000 11,151,000 9,881,000                                                      
      net income attributable to neogen per share
                                                                                                
      basic
                               0.215 0.25 0.31 0.29 0.34 0.32 0.33 0.31 0.208 0.27 0.29 0.26 0.27 0.22 0.24 0.25 0.26 0.2 0.21 0.24 0.2 0.18 0.17 0.33 0.29 0.28 0.29 0.28                                      
      diluted
                               0.213 0.25 0.31 0.29 0.33 0.32 0.33 0.31 0.205 0.27  0.26 0.26 0.22 0.24 0.25 0.25 0.2 0.21 0.24 0.2 0.18 0.17 0.32 0.29 0.27 0.28 0.28                                      
      net (income) attributable to non-controlling interest
                                     -53,000 -22,000                                                          
      net (income)/loss attributable to non-controlling interest
                                   -17,500 5,000                                                            
      net income attributable to neogen per share
                                                                                                
      basic
                               0.215 0.25 0.31 0.29 0.34 0.32 0.33 0.31 0.208 0.27 0.29 0.26 0.27 0.22 0.24 0.25 0.26 0.2 0.21 0.24 0.2 0.18 0.17 0.33 0.29 0.28 0.29 0.28                                      
      dilluted
                                         0.29                                                       
      change in purchase consideration
                                                -84,000 -454,000 241,000     78,000 -40,000 -40,000 -13,000 -26,000 180,000   -169,000 -218,000 -100,000 -300,000                              
      income before income taxes
                                           15,244,000 11,639,000 14,192,000 14,439,000 14,308,000 11,634,000 12,426,000 13,709,000 11,153,000 10,253,000 9,728,000 11,897,000 10,127,000 10,060,000 10,555,000 10,400,000 8,378,000 8,144,000 8,137,000 9,304,000 8,661,000 7,843,000 9,510,000 9,224,000 7,334,000 5,781,000 7,210,000 6,995,000 21,607,868,000 4,173,000 6,101,000 5,858,000 18,484,202,000 3,983,000 5,104,000 4,711,000 13,864,577,000 3,090,000 3,701,000 3,632,000 3,002,000 2,404,000 3,420,000 3,265,000 2,143,000 1,781,000 2,572,000 2,419,000 1,517,000 1,742,000 2,344,000 1,982,000  
      income taxes
                                           3,387,500 3,350,000 5,050,000 5,150,000 3,406,250 4,225,000 4,600,000  2,850,000 3,700,000 3,500,000 4,200,000 2,737,500 3,450,000 3,800,000 3,700,000 2,275,000 2,900,000 2,900,000 3,300,000 2,425,000 2,900,000 3,400,000 3,400,000 1,775,000 1,900,000 2,600,000 2,600,000 1,418,750 1,350,000 2,200,000 2,125,000 6,395,125,000 1,325,000 1,850,000 1,700,000 4,746,399,000 1,100,000 1,275,000 1,226,000 1,046,000 772,000 1,207,000 1,125,000 698,000 567,000 900,000 835,000 510,000 559,000 801,000 680,000  
      net income income attributable to non-controlling interest
                                           -3,000 22,000                                                    
      net income (income) attributable to neogen corporation
                                           6,676,750 8,311,000                                                    
      net income attributable to neogen corporation per share
                                                                                                
      basic
                               0.215 0.25 0.31 0.29 0.34 0.32 0.33 0.31 0.208 0.27 0.29 0.26 0.27 0.22 0.24 0.25 0.26 0.2 0.21 0.24 0.2 0.18 0.17 0.33 0.29 0.28 0.29 0.28                                      
      diluted
                               0.213 0.25 0.31 0.29 0.33 0.32 0.33 0.31 0.205 0.27  0.26 0.26 0.22 0.24 0.25 0.25 0.2 0.21 0.24 0.2 0.18 0.17 0.32 0.29 0.27 0.28 0.28                                      
      net income attributable to non-controlling interest
                                             -69,000                                                   
      net income attributable to neogen corporation
                                             9,073,000 9,323,000 6,035,500 7,454,000 7,806,000 8,883,000 5,155,250 6,575,000 6,207,000 7,839,000 5,039,500 6,652,000 6,793,000 6,714,000                                      
      net income/(income) attributable to non-controlling interest
                                              34,000                                                  
      net income/(income) attributable to non- controlling interest
                                               -250 45,000                                                
      net income/(income) attributable to noncontrolling interest
                                                  -26,000                                              
      net loss attributable to non- controlling interest
                                                   35,750 22,000                                            
      net income (income) attributable to non- controlling interest
                                                     -21,000                                           
      net income (income) attributable to non-controlling interest
                                                      142,000 23,500 42,000 38,000                                       
      net sales
                                                       37,880,500 51,055,000 50,737,000 49,729,000 48,545,000 44,912,000 44,891,000 45,697,000 43,595,000 42,235,000 43,931,000 42,923,000 39,078,000 33,833,000 35,251,000 32,347,000 118,633,169,000 27,840,000 31,187,000 28,805,000 102,342,701,000 25,180,000 27,210,000 22,909,000 86,074,537,000 21,054,000 22,189,000 20,220,000 19,815,000 17,584,000 18,256,000 16,778,000 16,008,000 14,403,000 17,133,000 15,212,000      
      cost of goods sold
                                                       17,602,250 23,742,000 23,431,000 23,235,000 24,646,000 22,020,000 22,234,000 22,720,000 21,646,000 21,647,000 21,443,000 20,156,000 19,356,000 16,372,000 16,729,000 15,077,000 59,244,125,000 14,813,000 15,062,000 14,001,000 49,148,832,000 12,517,000 13,039,000 10,612,000 41,544,516,000 10,104,000 10,480,000 9,900,000 9,662,000 9,062,000 8,766,000 7,937,000 7,962,000 7,445,000 9,039,000 7,707,000 5,001,750 7,791,000 6,243,000 5,973,000  
      net loss attributable to non-controlling interest
                                                          14,000                                      
      operating expenses - sum
                                                                   8,333,000 11,712,000 11,294,000 10,326,000                       4,723,000 4,386,000  
      other income - sum
                                                                   16,500 32,000 -18,000 51,000                       64,000 108,000  
      sales
                                                                                           10,049,000 14,717,000 13,246,000 12,233,000  
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2026-02-28 2025-11-30 2025-08-31 2025-05-31 2025-02-28 2024-11-30 2024-08-31 2024-05-31 2024-02-29 2023-11-30 2023-08-31 2023-05-31 2023-02-28 2022-11-30 2022-08-31 2022-05-31 2022-02-28 2021-11-30 2021-08-31 2021-02-28 2020-11-30 2020-08-31 2020-02-29 2019-11-30 2019-08-31 2019-02-28 2018-11-30 2018-08-31 2018-05-31 2018-02-28 2017-11-30 2017-08-31 2017-05-31 2017-02-28 2016-11-30 2016-08-31 2016-02-29 2015-11-30 2015-08-31 2015-02-28 2014-11-30 2014-08-31 2014-02-28 2013-11-30 2013-08-31 2013-02-28 2012-11-30 2012-08-31 2012-05-31 2012-02-29 2011-11-30 2011-08-31 2011-02-28 2010-11-30 2010-08-31 2010-02-28 2009-11-30 2009-08-31 2009-05-31 2009-02-28 2008-11-30 2008-08-31 2008-02-29 2007-11-30 2007-08-31 2007-02-28 2006-11-30 2006-08-31 2006-05-31 2006-02-28 2005-11-30 2005-08-31 2005-05-31 2005-02-28 2004-11-30 2004-08-31 2004-05-31 2004-02-29 2003-11-30 2003-08-31 2003-05-31 
                                                                                       
        assets
                                                                                       
        current assets
                                                                                       
        cash and cash equivalents
      159,900,000 145,340,000 138,883,000 129,004,000 127,705,000 140,231,000 120,477,000 170,611,000 161,437,000 205,765,000 178,832,000 163,240,000 67,134,000 100,000,000 107,098,000 44,473,000 42,879,000 51,119,000 71,283,000 73,482,000 113,867,000 60,947,000 50,774,000 66,414,000 56,289,000 93,576,000 101,585,000 97,225,000 83,074,000 82,066,000 64,425,000 58,456,000 77,567,000 59,883,000 86,297,000 76,187,000 66,862,000 71,378,000 42,326,000 57,484,000 49,058,000 53,457,000 43,277,000 43,613,000 43,608,000 48,861,000 41,309,000 44,485,000 49,045,000 42,698,000 36,972,000 22,032,000 47,627,000 44,392,000 33,701,000 31,107,000 32,454,000 23,564,000 13,842,000 13,731,000 12,721,000 9,654,000 11,093,000 10,415,000 6,786,000                 
        accounts receivable
      137,100,000 132,000,000 138,459,000 153,384,000 160,068,000 164,086,000 167,639,000 173,005,000 173,592,000 150,498,000 137,669,000 153,253,000 146,393,000 142,711,000 93,112,000 99,674,000    87,241,000                                                 -1,346,000    -545,000    -2,225,000     
        inventories
      161,700,000 162,766,000 193,414,000  205,442,000 198,267,000 198,596,000  182,390,000 160,529,000 140,692,000 133,812,000 143,863,000 136,069,000 129,039,000 122,313,000 113,395,000 107,086,000 102,109,000 99,267,000 92,529,000 97,573,000 89,244,000 86,406,000 87,682,000 84,870,000 79,473,000 78,771,000 76,005,000 77,506,000 73,713,000 73,413,000 73,144,000 75,396,000 71,683,000 69,839,000 65,448,000 61,485,000 56,107,000 55,096,000 53,497,000 55,087,000 51,861,000 47,330,000 43,757,000 41,082,000 38,375,000 35,009,000 34,992,000 36,313,000 36,425,000 34,222,000 31,397,000 31,433,000 30,100,000 31,667,000 30,149,000 30,471,000 31,363,000 32,867,000 31,262,000 29,955,000 25,765,000 23,142,000 22,295,000 18,444,000 18,325,000 17,943,000 -671,000 17,077,000 14,845,000 14,704,000 -1,331,000 12,797,000 12,367,000 12,383,000 -831,000 12,445,000 12,005,000 10,303,000 9,840,000 
        raw materials
      55,600,000 57,631,000 66,831,000  75,047,000 75,376,000 77,217,000                                                              8,033,000    5,529,000         
        work-in-process
      9,300,000 10,679,000 11,636,000  14,305,000 14,096,000 12,593,000                                                              411,000    721,000         
        finished goods
      113,300,000 109,007,000 131,812,000  136,250,000 128,300,000 125,995,000                                                              9,182,000    7,546,000         
        total inventories
      178,200,000 177,317,000 210,279,000                                                                               
        less inventory reserve
      -16,500,000 -14,551,000 -16,865,000  -20,160,000 -19,505,000 -17,209,000                                                                           
        prepaid expenses and other current assets
      63,100,000 57,714,000 53,304,000 53,288,000 58,498,000 67,863,000 53,938,000 56,025,000 78,042,000 83,080,000 66,176,000 53,297,000 81,901,000 88,215,000 38,045,000 23,760,000 24,821,000 22,371,000 18,844,000 15,449,000 15,201,000 13,955,000 17,016,000 14,795,000 15,738,000 11,041,000 11,569,000 12,856,000 9,888,000 9,334,000 15,533,000 11,190,000 7,606,000 7,678,000 7,962,000 8,432,000 5,885,000 6,077,000 6,958,000 5,535,000 4,131,000 4,616,000 5,768,000 5,172,000 4,663,000 4,401,000 4,443,000 4,200,000 3,324,000 3,170,000 5,474,000 4,923,000 3,474,000 3,479,000 4,150,000 3,089,000 3,055,000 2,874,000 2,998,000 3,502,000 2,673,000 2,690,000 2,992,000 2,923,000 2,610,000 3,977,000 3,192,000 2,653,000 -930,000 1,743,000 1,068,000 1,417,000 256,000 1,440,000 1,562,000 1,266,000 -587,000 1,375,000 1,433,000 1,332,000 1,041,000 
        assets held for sale
      68,200,000 76,756,000  50,402,000                                                                              
        total current assets
      590,000,000 574,576,000 524,060,000 576,937,000 551,713,000 570,447,000 540,650,000 589,233,000 602,471,000 624,373,000 583,793,000 585,931,000 555,371,000 643,333,000 607,907,000 626,798,000 609,633,000 611,204,000 609,124,000 555,304,000 578,426,000 556,699,000 514,875,000 500,183,000 473,548,000 422,602,000 414,294,000 396,117,000 375,789,000 352,204,000 339,940,000 310,934,000 292,961,000 276,770,000 288,401,000 268,607,000 254,940,000 250,477,000 235,361,000 217,346,000 205,750,000 201,169,000 175,969,000 178,856,000 177,906,000 160,071,000 152,574,000 152,735,000 143,941,000 136,194,000 130,418,000 124,219,000 112,731,000 108,128,000 95,816,000 89,913,000 91,034,000 81,203,000 71,766,000 73,132,000 69,462,000 65,004,000 58,744,000 56,624,000 50,321,000 46,932,000 45,225,000 41,937,000  34,966,000 33,508,000 32,389,000  27,330,000 27,560,000 26,242,000  25,644,000 24,110,000 28,133,000 27,971,000 
        net property and equipment
      331,900,000 332,362,000 345,893,000  327,838,000 310,552,000 300,971,000  272,282,000 244,300,000 221,090,000 198,749,000 164,888,000 148,170,000 121,021,000 110,584,000 104,699,000 100,863,000 99,515,000 97,981,000 83,774,000 80,593,000 78,394,000 77,150,000 75,154,000 76,453,000 73,910,000 72,886,000 73,069,000  66,874,000 63,285,000 61,748,000 60,975,000 55,533,000 54,739,000 51,901,000 51,865,000 49,294,000 43,543,000 43,106,000 42,700,000 39,838,000 38,233,000 35,813,000 33,414,000 31,264,000 30,666,000 29,933,000 29,502,000 28,888,000 28,238,000 21,209,000 20,739,000 19,759,000 16,948,000 16,718,000 17,265,000 17,058,000 16,748,000 16,772,000 16,756,000 16,547,000 16,501,000 16,569,000 15,589,000 15,235,000 14,620,000  14,027,000 12,300,000 12,026,000  12,216,000 12,138,000 11,328,000  10,375,000 7,596,000 4,767,000 4,640,000 
        other assets
                                                                                       
        right of use assets
      15,700,000 15,096,000 16,994,000 17,152,000 17,314,000 17,201,000 14,311,000 14,785,000 15,301,000 15,015,000 14,505,000 11,933,000 5,062,000 3,707,000 2,834,000 3,184,000 2,762,000 2,171,000 2,407,000 1,269,000 1,540,000 1,756,000                                                            
        goodwill
      1,047,800,000 1,046,042,000 1,065,889,000 1,064,902,000 1,671,705,000 1,672,501,000 2,137,494,000 2,135,632,000 2,136,338,000 2,137,983,000 2,137,602,000 2,137,496,000 2,135,118,000 2,122,397,000 140,067,000 142,704,000 150,029,000 142,613,000 130,012,000 133,029,000 111,687,000 111,675,000 109,761,000 103,610,000 102,883,000 104,077,000 103,309,000 102,595,000 99,558,000 99,478,000 104,290,000 105,073,000 104,759,000 104,080,000 87,581,000 88,215,000 75,978,000 75,147,000 75,292,000 70,119,000 70,402,000 68,190,000 70,728,000 66,538,000 63,576,000 61,726,000 60,037,000 53,078,000 53,052,000 51,704,000 51,634,000 51,609,000 53,345,000 53,320,000 53,295,000 43,534,000 38,061,000 38,047,000 39,717,000 36,880,000 37,718,000 38,364,000 31,559,000 28,869,000 28,792,000 24,448,000 29,105,000 29,085,000  30,591,000 18,782,000 18,599,000  19,232,000 19,228,000 18,617,000      
        amortizable intangible assets
      1,341,800,000 1,359,375,000 1,389,141,000 1,410,485,000    1,511,653,000    1,590,787,000                                                                      
        other non-current assets
      31,800,000 32,502,000 36,179,000 35,229,000 28,529,000 20,228,000 19,996,000 20,426,000 16,356,000 16,000,000 16,049,000 15,220,000 13,844,000 3,905,000 2,155,000 2,156,000 2,018,000 2,018,000 2,018,000                                                               
        total other assets
      2,437,100,000 2,453,015,000 2,508,203,000 2,527,768,000    3,682,496,000    3,769,752,000    255,547,000             169,151,000    173,700,000                77,726,000          53,352,000                      15,425,000 
        total assets
      3,359,000,000 3,359,953,000 3,378,156,000 3,443,836,000 4,036,336,000 4,054,092,000 4,503,173,000 4,548,833,000 4,582,492,000 4,602,415,000 4,561,105,000 4,554,432,000 4,508,764,000 4,563,242,000 977,405,000 992,929,000 981,205,000 967,934,000 932,106,000 880,216,000 845,626,000 821,592,000 773,501,000 750,591,000 721,144,000 672,585,000 660,492,000 640,926,000 618,009,000 595,601,000 581,028,000 547,334,000 528,409,000 507,298,000 487,311,000 468,615,000 432,241,000 425,783,000 409,386,000 378,435,000 365,917,000 357,662,000 330,350,000 319,713,000 308,137,000 281,025,000 269,671,000 260,797,000  240,347,000 234,318,000 227,622,000 209,157,000                             
        liabilities and stockholders’ equity
                                                                                       
        current liabilities
                                                                                       
        current portion of debt
         19,301,000                                                                              
        accounts payable
      75,200,000 63,040,000 76,596,000 79,605,000 72,240,000 79,574,000 61,464,000 83,061,000 89,748,000 112,184,000 90,210,000 76,669,000 60,494,000 79,251,000 27,002,000 34,614,000 23,548,000 34,222,000 22,414,000 23,257,000 20,697,000 22,537,000 18,994,000 19,567,000 18,345,000 18,952,000 20,555,000 20,891,000 20,750,000 19,654,000 17,427,000 16,665,000 16,244,000 17,072,000 17,287,000 17,966,000 15,403,000 20,682,000 14,762,000 10,592,000 11,307,000 13,002,000 11,772,000 11,358,000 11,654,000 9,948,000 8,420,000 9,329,000 10,760,000 7,708,000 9,611,000 9,802,000 7,345,000 9,010,000 7,452,000 6,824,000 7,115,000 5,383,000 3,909,000 6,070,000 5,785,000 6,822,000 5,691,000 4,614,000 4,097,000 3,152,000 3,551,000 3,652,000 90,000 3,137,000 2,649,000 3,503,000 -715,000 2,102,000 3,552,000 2,829,000 -210,000 2,776,000 2,030,000 1,960,000 3,273,000 
        accrued compensation
      23,500,000 20,280,000 20,273,000 14,134,000 18,335,000 16,480,000 15,803,000 19,949,000 20,305,000 15,642,000 14,863,000 25,153,000 17,387,000 15,014,000 8,295,000 11,123,000 9,655,000 9,636,000 6,989,000 7,928,000 8,321,000 5,501,000 5,596,000 5,689,000 4,796,000 5,391,000 5,216,000 5,803,000 6,065,000 5,469,000 5,619,000 5,079,000 5,002,000 4,393,000 4,442,000 4,938,000 4,121,000 4,246,000 3,898,000 3,528,000 3,545,000 4,103,000 3,166,000 4,014,000 3,166,000 2,686,000 1,992,000 2,146,000  2,698,000 2,536,000 2,280,000 2,201,000 1,803,000 2,187,000 2,049,000 2,119,000 2,079,000  1,762,000 1,812,000 1,801,000 1,772,000 1,507,000 1,413,000 1,433,000 1,609,000 1,479,000  1,329,000 1,437,000 1,248,000  1,001,000 1,239,000 1,126,000      
        income tax payable
      9,900,000 8,963,000 9,449,000 5,599,000 12,924,000 11,176,000 11,102,000 10,449,000 11,573,000 10,217,000 5,399,000 6,951,000 1,645,000 9,049,000 3,921,000 2,126,000                                                                  
        accrued interest
      3,500,000 11,018,000 3,556,000 11,078,000 3,438,000 11,091,000 3,554,000 10,985,000 3,438,000 10,985,000 3,438,000 11,149,000 3,438,000 13,974,000                                                                    
        deferred revenue
      3,900,000 3,874,000 5,824,000 5,558,000 5,769,000 5,651,000 5,635,000 4,632,000 5,486,000 4,679,000 3,789,000 4,616,000 6,765,000 5,083,000 5,464,000 5,460,000                                                                  
        other current liabilities
      28,200,000 30,768,000 30,507,000 32,180,000 25,993,000 24,647,000 22,480,000 22,800,000                                                                          
        liabilities held for sale
      6,400,000 9,107,000  6,556,000                                                                              
        total current liabilities
      150,600,000 147,050,000 146,205,000 174,011,000 141,200,000 151,195,000 122,689,000 154,323,000 157,844,000 176,612,000 138,130,000 145,472,000 107,155,000 152,558,000 67,004,000 77,844,000 65,710,000 62,673,000 50,762,000 45,942,000 44,587,000 46,442,000 39,135,000 38,791,000 40,427,000 34,268,000 38,760,000 39,218,000 38,688,000 37,293,000 37,945,000 38,322,000 36,002,000 34,723,000 33,869,000 32,638,000 27,782,000 31,227,000 26,899,000 26,551,000 24,123,000 24,475,000 24,534,000 23,290,000 22,839,000 22,569,000 18,315,000 18,970,000 19,979,000 17,436,000 18,409,000 18,253,000 20,223,000 21,297,000 19,555,000 14,619,000 14,968,000 12,396,000 9,246,000 11,681,000 11,937,000 12,844,000 11,387,000 10,174,000 9,336,000 8,932,000 9,669,000 8,383,000  8,248,000 6,475,000 7,315,000  4,802,000 6,394,000 5,486,000  6,333,000 5,382,000 4,499,000 5,763,000 
        deferred income tax liability
      269,200,000 273,947,000 277,253,000 280,907,000 301,053,000 302,405,000 317,574,000 326,718,000 353,853,000 355,005,000 354,792,000 353,427,000 362,630,000 364,252,000 15,949,000 17,011,000                                                                  
        non-current debt
      793,300,000 792,926,000 792,530,000 874,810,000 890,605,000 889,867,000 889,129,000 888,391,000 887,653,000 886,915,000 886,177,000 885,439,000 884,701,000 923,962,000                                                                    
        other non-current liabilities
      43,500,000 41,542,000 43,519,000 42,854,000 43,131,000 41,555,000 38,589,000 35,259,000 36,968,000 36,316,000 35,831,000 35,877,000 28,723,000 16,207,000 10,654,000 10,700,000 18,755,000 17,956,000 4,154,000 5,315,000 5,253,000 5,298,000 6,152,000 5,292,000 4,910,000 4,190,000 5,514,000 5,848,000 5,043,000   4,842,000 3,602,000                                                 
        total liabilities
      1,256,600,000 1,255,465,000 1,259,507,000 1,372,582,000 1,375,989,000 1,385,022,000 1,367,981,000 1,404,691,000 1,436,318,000 1,454,848,000 1,414,930,000 1,420,215,000 1,383,209,000 1,456,979,000 93,607,000 105,555,000 105,661,000 101,204,000 76,743,000 72,533,000 68,231,000 70,046,000 61,630,000 59,674,000 60,838,000 52,669,000 58,418,000 59,300,000 57,834,000 53,666,000 60,384,000 60,081,000 56,652,000 55,642,000 52,538,000 51,395,000 44,367,000 47,881,000 43,480,000 41,722,000 39,134,000 38,797,000 39,226,000 37,903,000 37,415,000 35,327,000 31,960,000 31,582,000 32,546,000 30,363,000 31,192,000 31,056,000 30,799,000 31,717,000 29,858,000 18,958,000 19,289,000 4,277,000 13,497,000 15,283,000 16,085,000 16,799,000                   6,634,000 
        commitments and contingencies
                                                                                       
        equity
                                                                                       
        preferred stock, 1.00 par value, 100,000 shares authorized, none issued and outstanding
                                                                                       
        common stock
      34,800,000 34,804,000 34,768,000 34,728,000 34,725,000 34,712,000 34,672,000 34,658,000 34,657,000 34,644,000 34,610,000 34,599,000 34,595,000 34,584,000 17,254,000 17,248,000 17,251,000 17,243,000 17,199,000 8,562,000 8,519,000 8,487,000 8,466,000 8,434,000 8,387,000 8,339,000 8,334,000 8,320,000 8,278,000 8,253,000 8,241,000 6,117,000 6,112,000 6,099,000 6,076,000 6,033,000 6,004,000 5,991,000 5,980,000 5,927,000 5,913,000 5,908,000 5,862,000 5,856,000 3,878,000 3,827,000 3,818,000 3,808,000 3,779,000 3,768,000 3,764,000 3,739,000 3,710,000 3,698,000 3,636,000 3,609,000 3,599,000 2,375,000 2,358,000 2,364,000 2,356,000 2,333,000 2,306,000 2,293,000 2,264,000 1,479,000 1,474,000 1,472,000  1,326,000 1,322,000 1,315,000  1,303,000 1,296,000 1,294,000  1,281,000 1,017,000 1,003,000 992,000 
        additional paid-in capital
      2,613,100,000 2,611,303,000 2,607,452,000 2,601,848,000 2,597,540,000 2,592,374,000 2,588,930,000 2,583,885,000 2,579,955,000 2,574,994,000 2,571,517,000 2,567,828,000 2,564,713,000 2,560,898,000 312,750,000 309,984,000 307,780,000 304,959,000 297,687,000 290,118,000 273,495,000 264,184,000 254,537,000 244,226,000 232,156,000 217,274,000 215,615,000 211,522,000 202,572,000 197,246,000 193,711,000 180,131,000 176,779,000 169,667,000 163,626,000 155,681,000 145,287,000 141,371,000 138,234,000 126,795,000 123,639,000 121,914,000 110,497,000 108,239,000 106,238,000 96,290,000 94,277,000 92,676,000 89,592,000 86,107,000 84,794,000 82,934,000 76,736,000 75,584,000 70,838,000 66,682,000 65,476,000 64,460,000 63,162,000 63,307,000 62,245,000 59,951,000 56,114,000 54,973,000 52,914,000 50,848,000 50,164,000 49,755,000  27,591,000 27,380,000 27,089,000  26,647,000 26,263,000 26,164,000  25,524,000 25,385,000 24,954,000 24,830,000 
        accumulated other comprehensive loss
      -12,500,000 -25,609,000 -23,485,000 -28,898,000 -47,690,000 -44,745,000 -31,421,000 -30,021,000 -29,473,000 -25,128,000 -26,496,000 -33,251,000 -33,222,000 -40,498,000 -39,326,000 -27,769,000 -22,439,000 -24,235,000 -16,204,000 -14,841,000 -15,086,000 -15,707,000 -13,507,000 -11,918,000 -14,136,000 -9,129,000 -12,234,000 -12,524,000 -9,746,000 -5,303,000 -6,466,000 -7,000,000 -7,203,000 -7,689,000 -8,130,000 -6,524,000 -5,694,000 -3,449,000      -160,000 -1,042,000 -1,393,000 -749,000 -879,000 -1,227,000 -773,000 -1,070,000 -508,000 -524,000 -817,000 -1,000,000                           
        accumulated deficit
      -533,000,000 -516,010,000 -500,086,000                                                                               
        total stockholders’ equity
      2,102,400,000 2,104,488,000 2,118,649,000 2,071,254,000 2,660,347,000 2,669,070,000 3,135,192,000 3,144,142,000 3,146,174,000 3,147,567,000 3,146,175,000 3,134,217,000 3,125,555,000 3,106,263,000 883,798,000  875,544,000 865,476,000 855,363,000 807,683,000 777,395,000 751,546,000 711,871,000 690,917,000 660,306,000 619,916,000 602,074,000 581,626,000                            146,342,000 141,624,000 134,900,000 128,679,000 124,892,000 120,852,000 116,272,000 105,397,000 101,674,000 96,265,000 88,039,000 85,373,000 83,006,000  61,637,000 59,702,000 57,238,000  53,319,000 51,707,000 49,796,000  46,535,000 44,901,000 42,846,000 41,402,000 
        total liabilities and stockholders’ equity
      3,359,000,000 3,359,953,000 3,378,156,000 3,443,836,000 4,036,336,000 4,054,092,000 4,503,173,000 4,548,833,000 4,582,492,000 4,602,415,000 4,561,105,000 4,554,432,000 4,508,764,000 4,563,242,000 977,405,000 992,929,000 981,205,000 967,934,000 932,106,000 880,216,000 845,626,000 821,592,000 773,501,000 750,591,000 721,144,000                                                         
        marketable securities
              7,010,000 24,501,000 60,424,000 82,329,000 116,080,000 176,338,000 240,613,000 336,578,000 335,560,000 338,130,000 329,597,000 279,865,000 276,898,000 306,539,000 277,149,000 247,191,000 234,727,000 153,104,000 139,385,000 129,189,000 127,736,000 110,089,000 111,410,000 101,534,000 66,068,000 64,699,000 55,809,000 53,039,000 58,296,000 51,640,000 68,629,000 44,664,000 45,247,000 34,640,000 25,533,000 35,479,000 40,767,000 25,705,000 29,529,000 30,019,000 19,600,000 18,637,000 18,634,000 29,325,000              5,400,000 3,650,000 2,150,000   1,008,000 1,002,000  140,000 138,000 31,000   306,000 8,092,000 7,836,000 
        inventory
         190,859,000    189,267,000                                                                          
        property and equipment
         339,131,000    277,104,000                      72,514,000                                                    
        land and improvements
         10,816,000    10,497,000    10,209,000    9,485,000             4,730,000    3,094,000                1,439,000          1,175,000                      279,000 
        building and improvements
         108,721,000    108,298,000    96,794,000    79,513,000             44,008,000    37,917,000                                                 
        machinery and equipment
         180,820,000    176,369,000    152,547,000    114,180,000             74,911,000    64,867,000                27,508,000          17,008,000                      7,117,000 
        furniture and fixtures
         7,963,000    8,260,000    7,080,000    6,307,000             3,568,000    3,333,000                1,410,000          806,000                      540,000 
        construction in progress
         186,242,000    113,968,000    52,237,000    5,974,000             2,654,000    2,290,000                590,000                                 
        total property and equipment
         494,562,000                                                                              
        less accumulated depreciation
         -155,431,000    -140,288,000    -120,118,000    -104,875,000             56,802,000    49,753,000                21,671,000          13,115,000                      6,129,000 
        stockholders’ equity
                                                                                       
        preferred stock, 1.00 par value — shares authorized 100,000; none issued and outstanding
                                                                                       
        retained earnings
         -536,424,000 75,772,000 86,729,000 543,011,000 555,620,000 561,035,000 563,057,000 566,544,000 565,041,000 559,469,000 551,279,000 593,120,000 587,911,000 572,952,000 567,509,000 556,681,000 523,844,000 510,467,000 494,582,000 462,375,000 450,175,000 433,899,000 403,432,000 390,359,000 374,308,000 359,071,000 341,459,000 324,873,000 307,773,000 295,926,000 283,453,000 273,165,000 262,014,000 242,276,000 233,965,000 224,892,000 206,185,000 198,732,000 190,926,000 174,506,000 167,930,000 161,724,000 146,853,000 140,202,000 133,409,000 126,695,000 120,580,000 115,312,000 110,059,000 98,105,000 93,137,000 87,011,000 76,476,000 72,595,000 67,984,000 63,589,000 60,172,000 57,349,000 53,448,000 46,540,000 43,882,000 40,628,000 35,314,000 33,324,000 31,485,000  32,577,000 30,945,000 28,732,000  25,147,000 23,932,000 22,260,000  19,605,000 18,422,000 16,879,000 15,577,000 
        inventories - sum
          225,602,000 217,772,000 215,805,000                                                                           
        intangible assets
          1,439,237,000 1,463,163,000 1,489,751,000  1,539,744,000 1,564,744,000 1,588,066,000                                                                       
        current portion of finance lease
          2,501,000 2,576,000 2,651,000 2,447,000 2,521,000 2,569,000 2,642,000                                                                       
        marketable securities, amortized cost of 325 and 83,549
             325,000                                                                          
        property and equipment - sum
             417,392,000    318,867,000    215,459,000                                 51,604,000                                10,769,000 
        other non-amortizable intangible assets
                 14,316,000 14,252,000 15,216,000 15,182,000 15,397,000 15,451,000 15,359,000 15,496,000 15,441,000 15,378,000 15,366,000 15,425,000 15,495,000 15,397,000 15,658,000 15,423,000 15,391,000 14,938,000 15,011,000 14,667,000 14,346,000 14,323,000 11,699,000 9,370,000 9,170,000 9,170,000 9,020,000 9,020,000 9,020,000 9,682,000 9,682,000 7,935,000 7,280,000 7,007,000 5,360,000 5,275,000 5,275,000 5,270,000 5,166,000 5,166,000 5,166,000 4,314,000 4,089,000 4,089,000 4,139,000 4,139,000 4,139,000 3,730,000 3,680,000 3,435,000 3,435,000 3,181,000 3,181,000 3,181,000 3,181,000 2,076,000 2,077,000  2,076,000 2,076,000 2,076,000  853,000 852,000 675,000      
        other accruals
              24,773,000 20,336,000 17,789,000 20,934,000 17,426,000 30,187,000 22,322,000 24,521,000 32,507,000 18,815,000 16,836,000 14,757,000 15,093,000 13,807,000 13,066,000 12,779,000 13,144,000 9,925,000 11,456,000 10,823,000 11,708,000 11,210,000 12,940,000 10,546,000 13,820,000 11,079,000 10,757,000 7,913,000 5,256,000 6,010,000 5,947,000 7,569,000 8,378,000 5,927,000 8,063,000 7,606,000 5,669,000 6,116,000 5,306,000 5,099,000  4,426,000 4,674,000 4,393,000 5,551,000 5,799,000 5,006,000 2,497,000 2,089,000 1,620,000  1,748,000 1,962,000 1,777,000 1,735,000 2,266,000 2,325,000 2,340,000 2,753,000 2,271,000  2,875,000 1,882,000 1,446,000  1,699,000 1,603,000 1,338,000      
        amortizable intangible and other assets, net of accumulated amortization
                  1,620,229,000                                                                     
        amortizable intangible and other assets, net of accumulated amortization of 78,046 and 55,416
                   1,626,514,000                                                                    
        amortizable intangible and other assets, net of accumulated amortization of 55,201 and 55,416 at august 31, 2022 and may 31, 2022, respectively
                    88,239,000                                                                   
        amortizable intangible assets, net of accumulated amortization of 55,416 and 53,462 at may 31, 2022 and 2021, respectively
                     92,106,000                                                                  
        accruals
                                                                                  -429,000 3,557,000 3,352,000 2,539,000  
        total neogen corporation and subsidiaries stockholders’ equity
                     887,374,000             560,175,000    471,614,000      365,951,000                                           
        accounts receivables
                      92,978,000 92,498,000 87,291,000  79,931,000  80,692,000 85,377,000 79,112,000 80,011,000 82,282,000 78,076,000 79,086,000 73,209,000 74,859,000 66,341,000 68,576,000 67,367,000 64,902,000 59,354,000 56,156,000 57,604,000 59,041,000 52,887,000 52,107,000 51,689,000 48,068,000 45,800,000 43,649,000 38,694,000 37,590,000 37,694,000 35,652,000 34,332,000 31,869,000 32,673,000 29,459,000 28,050,000 27,091,000 23,850,000 25,176,000 24,094,000 23,363,000 21,807,000 21,581,000 21,480,000 18,107,000 19,357,000 17,843,000 15,323,000 15,513,000 14,612,000  13,498,000 12,894,000 11,948,000  11,070,000 11,428,000 10,357,000  9,533,000 7,933,000 7,172,000 7,499,000 
        amortizable intangible and other assets, net of accumulated amortization of 53,838 and 53,462 at february 28, 2022 and may 31, 2021, respectively
                      96,613,000                                                                 
        income taxes
                        4,523,000  476,000 4,597,000 1,479,000 756,000 4,142,000  1,533,000 1,701,000 165,000 960,000 1,959,000 6,032,000 936,000 2,179,000 1,383,000 1,821,000 3,002,000 289,000 2,292,000 4,862,000 893,000 1,443,000 1,533,000 312,000 2,350,000 3,819,000 2,597,000 2,396,000  2,604,000 1,588,000 1,778,000 5,126,000 4,685,000 4,910,000 3,249,000 3,645,000 3,314,000  2,101,000 2,378,000 2,444,000 2,189,000 1,787,000 1,501,000 2,007,000 1,756,000 981,000  907,000 507,000 1,118,000          
        deferred income taxes
                      21,196,000 21,829,000 21,827,000 21,276,000 18,391,000 18,306,000 16,343,000 15,591,000 15,501,000 14,211,000 14,144,000 14,234,000 14,103,000 11,400,000 16,943,000 16,917,000 17,048,000 1,747,000 1,748,000 1,756,000 2,293,000 2,293,000 2,300,000 1,680,000 1,710,000 1,680,000 1,462,000 1,462,000 1,462,000 1,328,000 1,328,000 1,328,000 1,328,000 1,044,000 1,044,000 1,044,000 774,000 774,000 774,000 200,000 200,000 200,000 200,000 1,225,000 1,225,000 1,225,000 787,000 787,000 787,000 1,264,000 1,264,000 1,264,000 485,000 768,000 768,000 768,000 309,000 651,000 651,000 651,000 512,000 694,000 694,000 694,000 694,000 
        amortizable intangible and other assets, net of accumulated amortization of 51,012 and 53,462 at november 30, 2021 and may 31, 2021, respectively
                       93,706,000                                                                
        amortizable intangible and other assets, net of accumulated amortization of 49,086 and 53,462 at august 31, 2021 and may 31, 2021, respectively
                        73,534,000                                                               
        amortizable intangible and other assets, net of accumulated amortization of 50,998 and 44,690 at february 28, 2021 and may 31, 2020, respectively
                         77,192,000                                                              
        amortizable intangible and other assets, net of accumulated amortization of 48,546 and 44,690 at november 30, 2020 and may 31, 2020, respectively
                          54,821,000                                                             
        may 31, 2020, respectively
                           77,685,000                                                            
        amortizable intangible and other assets, net of accumulated amortization of 46,773 and 44,690 at august 31, 2020 and may 31, 2020, respectively
                           55,503,000                                                            
        amortizable intangible and other assets, net of accumulated amortization of 43,397 and 40,835 at february 29, 2020 and may 31, 2019, respectively
                            55,046,000                                                           
        amortizable intangible and other assets, net of accumulated amortization of 41,923 and 40,835 at november 30, 2019 and may 31, 2019, respectively
                             54,153,000                                                          
        amortizable intangible and other assets, net of accumulated amortization of 40,127 and 40,835 at august 31, 2019 and may 31, 2019, respectively
                              54,162,000                                                         
        amortizable customer-based intangibles, net of accumulated amortization of 27,184 and 24,579 at february 28, 2019 and may 31, 2018, respectively
                               30,007,000                                                        
        other non-current assets, net of accumulated amortization of 12,304 and 12,470 at february 28, 2019 and may 31, 2018, respectively
                               23,788,000                                                        
        liabilities and equity
                                                                                       
        total liabilities and equity
                               672,585,000 660,492,000 640,926,000  595,601,000 581,028,000 547,334,000  507,298,000 487,311,000 468,615,000 432,241,000 425,783,000 409,386,000 378,435,000 365,917,000 357,662,000 330,350,000 319,713,000 308,137,000 281,025,000 269,671,000 260,797,000  240,347,000 234,318,000 227,622,000 209,157,000                             
        amortizable customer-based intangibles, net of accumulated amortization of 26,292 and 24,579 at november 30, 2018 and may 31, 2018, respectively
                                30,022,000                                                       
        other non-current assets, net of accumulated amortization of 11,440 and 12,470 at november 30, 2018 and may 31, 2018, respectively
                                23,534,000                                                       
        amortizable customer-based intangibles, net of accumulated amortization of 25,397 and 24,579 at august 31, 2018 and may 31, 2018, respectively
                                 30,436,000                                                      
        other non-current assets, net of accumulated amortization of 10,765 and 12,470 at august 31, 2018 and may 31, 2018, respectively
                                 23,501,000                                                      
        amortizable customer-based intangible assets, net of accumulated amortization of 24,579 and 20,846 at may 31, 2018 and 2017, respectively
                                  31,841,000                                                     
        other non-current assets, net of accumulated amortization of 12,470 and 9,931 at may 31, 2018 and 2017, respectively
                                  22,814,000                                                     
        non-controlling interest
                                   280,000 285,000 232,000 143,000 126,000 36,000 16,000 1,000 24,000 -45,000 -60,000 -15,000                                         
        total equity
                                  560,175,000 541,935,000 520,644,000 487,253,000 471,757,000 451,656,000 434,773,000 417,220,000 387,874,000 377,902,000 365,906,000 336,713,000 326,783,000 318,865,000 291,124,000 281,810,000 270,722,000 245,698,000 237,711,000 229,215,000 219,054,000 209,984,000 203,126,000 196,566,000 178,358,000 171,958,000 160,856,000                           
        customer-based intangibles, net of accumulated amortization of 23,846 and 20,846 at february 28, 2018 and may 31, 2017
                                   33,518,000                                                    
        other non-current assets, net of accumulated amortization of 11,893 and 9,931 at february 28, 2018 and may 31, 2017
                                   22,876,000                                                    
        non-current liabilities
                                   4,973,000 5,496,000                                                   
        total neogen corporation stockholders’ equity
                                   541,655,000 520,359,000 487,021,000  451,530,000 434,737,000 417,204,000 387,873,000 377,878,000  336,773,000    281,865,000 270,798,000 245,577,000 237,548,000 229,014,000  209,682,000 202,800,000 196,224,000 178,027,000 171,602,000 160,485,000                           
        amortizable customer-based intangibles, net of accumulated amortization of 22,808 and 20,846 at november 30, 2017 and may 31, 2017
                                    33,512,000                                                   
        other non-current assets, net of accumulated amortization of 11,089 and 9,931 at november 30, 2017 and may 31, 2017
                                    21,745,000                                                   
        amortizable customer-based intangibles, net of accumulated amortization of 21,931 and 20,846 at august 31, 2017 and may 31, 2017
                                     35,011,000                                                  
        other non-current assets, net of accumulated amortization of 10,167 and 9,931 at august 31, 2017 and may 31, 2017
                                     18,685,000                                                  
        amortizable customer-based intangible assets, net of accumulated amortization of 20,846 and 17,277 at may 31, 2017 and 2016, respectively
                                      35,983,000                                                 
        other non-current assets, net of accumulated amortization of 9,931 and 7,530 at may 31, 2017 and 2016, respectively
                                      18,635,000                                                 
        preferred stock, 1.00 par value - shares authorized 100,000; none issued and outstanding
                                                                                       
        amortizable customer-based intangibles, net of accumulated amortization of 19,782 and 17,277 at february 28, 2017 and may 31, 2016
                                       35,508,000                                                
        other non-current assets, net of accumulated amortization of 9,449 and 7,530 at february 28, 2017 and may 31, 2016
                                       18,266,000                                                
        other long-term liabilities
                                       3,227,000 2,251,000 2,224,000 2,107,000 2,176,000 2,086,000 2,100,000 2,076,000 2,032,000 2,243,000 2,164,000 2,127,000 2,037,000 2,924,000 2,638,000 2,593,000 4,580,000 4,436,000 4,456,000 4,752,000 4,596,000 4,479,000 1,614,000 1,596,000 1,552,000 1,526,000 1,273,000 1,819,000 1,626,000 1,715,000 1,761,000 1,838,000         2,550,000 2,575,000 2,551,000  454,000 458,000 466,000 466,000 
        amortizable customer-based intangibles, net of accumulated amortization of 18,186 and 17,277 at november 30, 2016 and may 31, 2016
                                        27,271,000                                               
        other non-current assets, net of accumulated amortization of 9,768 and 7,530 at november 30, 2016 and may 31, 2016
                                        19,155,000                                               
        amortizable customer-based intangibles, net of accumulated amortization of 17,300 and 17,277 at august 31, 2016 and may 31, 2016
                                         28,877,000                                              
        other non-current assets, net of accumulated amortization of 8,879 and 7,530 at august 31, 2016 and may 31, 2016
                                         19,007,000                                              
        customer based intangibles, net of accumulated amortization of 15,794 and 14,446 at february 29, 2016 and may 31, 2015
                                          23,065,000                                             
        other non-current assets, net of accumulated amortization of 8,187 and 7,191 at february 29, 2016 and may 31, 2015
                                          17,187,000                                             
        customer based intangibles, net of accumulated amortization of 15,069 and 14,446 at november 30, 2015 and may 31, 2015
                                           23,571,000                                            
        other non-current assets, net of accumulated amortization of 7,630 and 7,191 at november 30, 2015 and may 31, 2015
                                           15,703,000                                            
        customer-based intangibles, net of accumulated amortization of 14,385 and 14,446 at august 31 and may 31, 2015
                                            24,875,000                                           
        other non-current assets, net of accumulated amortization of 6,689 and 7,191
                                            15,544,000                                           
        accumulated other comprehensive income
                                            -3,155,000 -2,134,000 -1,486,000 152,000 336,000                -430,000 -951,000 -1,098,000 540,000 437,000 526,000 459,000 398,000 411,000 294,000  143,000 55,000 102,000  222,000 216,000 78,000  125,000 77,000 10,000 3,000 
        customer based intangibles, net of accumulated amortization of 13,036 and 11,915 at february 28, 2015 and may 31, 2014
                                             21,853,000                                          
        other non-current assets, net of accumulated amortization of 6,955 and 5,494 at february 28, 2015 and may 31, 2014
                                             16,554,000                                          
        amortizable customer-based intangibles, net of accumulated amortization of 12,552 and 11,915 at november 30 and may 31, 2014
                                              23,937,000                                         
        other non-current assets, net of accumulated amortization of 6,573 and 5,494 at november 30 and may 31, 2014
                                              13,040,000                                         
        total neogen corporation stockholder’s equity
                                              326,798,000  291,201,000                                       
        amortizable customer-based intangibles, net of accumulated amortization of 12,593 and 11,915 at august 31 and may 31, 2014
                                               24,538,000                                        
        other non-current assets, net of accumulated amortization of 5,467 and 5,494 at august 31 and may 31, 2014
                                               11,383,000                                        
        total neogen corporation and subsidiaries stockholder’s equity
                                               318,900,000                                        
        noncontrolling interest
                                               -35,000 -77,000 -55,000 -76,000 121,000 163,000 201,000 215,000 302,000 326,000 342,000 331,000 356,000 371,000                           
        customer based intangibles, net of accumulated amortization of 10,629 and 9,446
                                                23,610,000                                       
        other non-current assets, net of accumulated amortization of 5,800 and 4,222
                                                12,270,000                                       
        customer based intangibles, net of accumulated amortization of 9,954 and 9,446
                                                 18,143,000                                      
        other non-current assets, net of accumulated amortization of 5,427 and 4,222
                                                 10,663,000                                      
        customer based intangibles, net of accumulated amortization of 9,376 and 9,446
                                                  13,721,000                                     
        other non-current assets, net of accumulated amortization of 5,067 and 4,222
                                                  10,114,000                                     
        customer based intangibles, net of accumulated amortization of 8,434 and 7,111
                                                   12,253,000                                    
        other non-current assets, net of accumulated amortization of 4,335 and 3,578
                                                   8,201,000                                    
        customer based intangibles, net of accumulated amortization of 7,955 and 7,111
                                                    11,982,000                                   
        other non-current assets, net of accumulated amortization of 4,081 and 3,578
                                                    8,539,000                                   
        customer based intangibles, net of accumulated amortization of 7,509 and 7,111
                                                     10,428,000                                  
        other non-current assets, net of accumulated amortization of 3,821 and 3,578
                                                     8,615,000                                  
        buildings and improvements
                                                      20,657,000          11,184,000                      2,833,000 
        amortizable customer based intangibles, net of accumulated amortization of 7,111 and 5,431 at may 31, 2012 and 2011
                                                      10,826,000                                 
        other non-current assets, net of accumulated amortization of 3,578 and 2,789 at may 31, 2012 and 2011
                                                      8,578,000                                 
        compensation and benefits
                                                      2,756,000          2,519,000                      1,201,000 
        federal income taxes
                                                      809,000          667,000                 193,000     342,000 
        other
                                                      5,654,000          2,151,000          51,000    55,000        947,000 
        total neogen corporation and subsidiaries
                                                                                       
        stockholders equity
                                                      218,839,000                                 
        customer based intangibles, net of accumulated amortization of 6,689 and 5,431
                                                       10,748,000                                
        other non-current assets, net of accumulated amortization of 3,385 and 2,789
                                                       7,033,000                                
        customer based intangibles, net of accumulated amortization of 6,241 and 5,431
                                                        11,196,000                               
        other non-current assets, net of accumulated amortization of 3,152 and 2,789
                                                        7,016,000                               
        customer based intangibles, net of accumulated amortization of 5,810 and 5,431
                                                         11,627,000                              
        other non-current assets, net of accumulated amortization of 2,977 and 2,789
                                                         6,763,000                              
        customer based intangibles, net of accumulated amortization of 5,162 and 4,002
                                                          11,862,000                             
        other non-current assets, net of accumulated amortization of 2,524 and 1,822
                                                          5,696,000                             
        customer based intangibles, net of accumulated amortization of 4,779 and 4,002
                                                           12,245,000                            
        other non-current assets, net of accumulated amortization of 2,360 and 1,822
                                                           5,154,000                            
        customer based intangibles, net of accumulated amortization of 4,392 and 4,002
                                                            12,632,000                           
        other non-current assets, net of accumulated amortization of 2,197 and 1,822
                                                            5,123,000                           
        customer based intangibles, net of accumulated amortization of 3,626 and 2,861
                                                             6,031,000                          
        other non-current assets, net of accumulated amortization of 1,806 and 1,663
                                                             4,735,000                          
        other assets - sum
                                                             58,439,000 53,161,000 53,105,000                        
        accumulated other comprehensive income and noncontrolling interest
                                                             -425,000 -46,000                         
        customer based intangibles, net of accumulated amortization of 3,408 and 2,861
                                                              6,264,000                         
        other non-current assets, net of accumulated amortization of 1,674 and 1,663
                                                              4,697,000                         
        customer based intangibles, net of accumulated amortization of 3,080 and 2,861
                                                               6,142,000                        
        other non-current assets, net of accumulated amortization of 1,648 and 1,663
                                                               4,777,000                        
        accumulated other comprehensive income and minority interest
                                                               81,000                        
        customer based intangibles, net of accumulated amortization of 2,861,000 and 1,988,000 at may 31, 2009 and 2008
                                                                6,143,000                       
        other non-current assets, net of accumulated amortization of 1,663,000 and 1,373,000 at may 31, 2009 and 2008
                                                                3,762,000                       
        customer based intangibles, net of accumulated amortization of 2,391 and 1,988
                                                                 5,167,000                      
        other non-current assets, net of accumulated amortization of 1,813 and 1,373
                                                                 4,568,000                      
        customer based intangibles, net of accumulated amortization of 2,291 and 1,988
                                                                  5,353,000                     
        other non-current assets, net of accumulated amortization of 1,559 and 1,373
                                                                  4,197,000                     
        customer based intangibles, net of accumulated amortization of 2,089 and 1,988
                                                                   5,540,000                    
        other non-current assets, net of accumulated amortization of 1,484 and 1,373
                                                                   3,972,000                    
        customer based intangibles, net of accumulated amortization of 1,658 and 1,215
                                                                    5,241,000                   
        other non-current assets, net of accumulated amortization of 1,370 and 1,290
                                                                    4,546,000                   
        customer based intangibles, net of accumulated amortization of 1,485 and 1,215
                                                                     5,414,000                  
        other non-current assets, net of accumulated amortization of 1,284 and 1,290
                                                                     4,339,000                  
        customer based intangibles, net of accumulated amortization of 1,389 and 1,215
                                                                      6,018,000                 
        other non-current assets, net of accumulated amortization of 1,128 and 1,290
                                                                      3,953,000                 
        cash
                                                                       2,524,000 3,281,000 3,315,000  1,880,000 2,925,000 2,550,000  1,232,000 1,414,000 1,554,000  1,597,000 1,739,000 540,000 1,061,000 
        other non-current assets, net of accumulated amortization of 2,180,000 and 1,527,000
                                                                       9,841,000                
        long term debt
                                                                           12,800,000            
        deferred income taxes and other long-term liabilities
                                                                       3,020,000 3,045,000 2,892,000  3,006,000 3,081,000 3,146,000          
        other non-current assets, net of accumulated amortization of 2,128,000 and 1,527,000
                                                                        6,446,000               
        other non-current assets, net of accumulated amortization of 1,630,000 and 1,527,000
                                                                         6,562,000              
        cash flows from operating activities
                                                                                       
        net income
                                                                          7,941,000    5,916,000    5,099,000     
        adjustments to reconcile net income to net cash from operating activities:
                                                                                       
        depreciation and amortization
                                                                          2,417,000    1,703,000    1,402,000     
        income tax benefit of stock plan transactions
                                                                          703,000    219,000    250,000     
        changes in operating assets and liabilities, net of business acquisitions:
                                                                                       
        accruals and other changes
                                                                          3,573,000             
        net cash from operating activities
                                                                          12,313,000    6,722,000    2,981,000     
        cash flows used in investing activities
                                                                                       
        proceeds from sales of marketable securities
                                                                          6,533,000    831,000    39,019,000     
        purchases of marketable securities
                                                                          -6,683,000    -500,000    -31,514,000     
        purchases of property, equipment and other noncurrent assets
                                                                          -2,692,000    -2,688,000    -5,043,000     
        business and product line acquisitions, net of cash acquired
                                                                          -20,658,000    -874,000         
        net cash from investing activities
                                                                          -23,500,000    -3,231,000    -7,572,000     
        cash flows from (used in) financing activities
                                                                                       
        net proceeds from issuance of common stock
                                                                          1,098,000    1,023,000    995,000     
        repurchase of common stock
                                                                          -29,000    -257,000         
        proceeds from long-term debt
                                                                          14,640,000             
        payments on long-term debt
                                                                          -4,685,000             
        increase in other long-term liabilities
                                                                              250,000         
        net cash from financing activities
                                                                          11,024,000    -2,884,000    4,895,000     
        net increase in cash
                                                                          -163,000    607,000    304,000     
        cash, at beginning of year
                                                                          1,972,000    1,365,000    1,061,000     
        cash, at end of year
                                                                          1,809,000    1,972,000    1,365,000     
        supplemental cash flow information
                                                                                       
        income taxes paid, net of refunds
                                                                          1,863,000    1,150,000    2,200,000     
        interest paid
                                                                          283,000    83,000    53,000     
        other non-current assets, net of accumulated amortization of 1,381 and 1,123
                                                                           4,031,000            
        other non-current assets, net of accumulated amortization of 1,047 and 1,123
                                                                            2,592,000           
        other non-current assets, net of accumulated amortization of 1,186 and 1,123
                                                                             2,609,000          
        adjustments to reconcile net income to net cash from operating activities
                                                                                       
        accruals and changes
                                                                              855,000         
        cash flows from investing activities
                                                                                       
        cash flows from financing activities
                                                                                       
        proceeds from (payments on) long-term debt
                                                                              -3,900,000         
        other non-current assets, net of accumulated amortization of 1,076 and 864
                                                                               3,290,000        
        long-term debt
                                                                               2,250,000 2,457,000 2,400,000  4,600,000    
        other non-current assets, net of accumulated amortization of 1,002 and 864
                                                                                3,355,000       
        other non-current assets, net of accumulated amortization of 935 and 864
                                                                                 3,371,000      
        business acquisitions, net of cash acquired
                                                                                  -10,034,000     
        proceeds from (payments on) long-term borrowings
                                                                                  3,900,000     
        1.
                                                                                       
        goodwill and other non-amortizable intangible assets
                                                                                   20,812,000   13,665,000 
        other non-current assets, net of accumulated amortization of 767 and 860
                                                                                   1,496,000    
        goodwill and other non amortizable intangible assets
                                                                                    19,787,000 13,665,000  
        other non-current assets, net of accumulated amortization of 721 and 860
                                                                                    2,753,000   
        bank line of credit
                                                                                    3,100,000   
        other non-current assets, net of accumulated amortization of 676 and 860
                                                                                     1,651,000  
        other non-current assets, net of accumulated amortization of 860,000 and 691,000
                                                                                      1,760,000 
        preferred stock, 1.00 par value—shares authorized 100,000; none issued and outstanding
                                                                                       
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2026-02-28 2025-11-30 2025-08-31 2025-05-31 2025-02-28 2024-11-30 2024-08-31 2024-05-31 2024-02-29 2023-11-30 2023-08-31 2023-05-31 2023-02-28 2022-11-30 2022-08-31 2022-05-31 2022-02-28 2021-11-30 2021-08-31 2021-05-31 2021-02-28 2020-11-30 2020-08-31 2020-05-31 2020-02-29 2019-11-30 2019-08-31 2019-05-31 2019-02-28 2018-11-30 2018-08-31 2018-05-31 2018-02-28 2017-11-30 2017-08-31 2017-05-31 2017-02-28 2016-11-30 2016-08-31 2016-05-31 2016-02-29 2015-11-30 2015-08-31 2015-05-31 2015-02-28 2014-11-30 2014-08-31 2014-05-31 2014-02-28 2013-11-30 2013-08-31 2013-05-31 2013-02-28 2012-11-30 2012-08-31 2012-05-31 2012-02-29 2011-11-30 2011-08-31 2011-05-31 2011-02-28 2010-11-30 2010-08-31 2010-05-31 2010-02-28 2009-11-30 2009-08-31 2009-05-31 2009-02-28 2008-11-30 2008-08-31 2008-05-31 2008-02-29 2007-11-30 2007-08-31 2007-05-31 2007-02-28 2006-11-30 2006-08-31 2006-05-31 2006-02-28 2005-11-30 2005-08-31 2005-05-31 2005-02-28 2004-11-30 2004-08-31 2004-05-31 2004-02-29 2003-11-30 2003-08-31 
                                                                                                   
          cash flows from operating activities
                                                                                                   
          net income
        -17,014,000 -15,924,000 36,338,000    -12,609,000    1,503,000 5,572,000 8,190,000 -41,841,000 5,209,000 14,959,000 5,443,000 10,828,000 17,077,000 15,760,000 13,377,000 15,885,000 15,860,000 16,347,000 12,200,000 16,276,000 14,652,000 15,815,000 13,073,000 16,051,000 15,237,000  16,581,000 17,153,000 11,936,000 12,490,000 10,378,000 11,171,000 9,934,000 9,819,000 8,288,000 9,142,000 9,289,000 9,433,000 7,408,000 7,826,000 8,909,000 7,553,000 6,554,000 6,227,000 7,697,000 6,977,000 6,609,000 6,755,000 6,700,000 6,028,000 5,244,000 5,237,000 6,004,000   6,111,000 5,824,000 4,634,000 3,881,000 4,611,000 4,395,000 13,863,543,000 2,823,000 3,901,000 3,733,000 12,089,077,000 2,658,000 3,254,000 3,011,000 9,118,178,000 1,990,000 2,426,000 2,406,000 1,956,000 1,632,000 2,213,000 2,140,000 1,445,000 1,215,000 1,672,000 1,584,000 1,071,000 1,183,000 1,543,000 1,302,000 
          adjustments to reconcile net income to net cash from operating activities:
                                                                                                   
          depreciation and amortization
        28,918,000 28,927,000 29,055,000 30,261,000 29,373,000 30,049,000 29,800,000 28,864,000 29,650,000 29,469,000 28,734,000 28,439,000 27,471,000 26,738,000 5,729,000 5,861,000 6,322,000 5,829,000 5,682,000 5,934,000 5,584,000 4,803,000 4,720,000 4,854,000 4,557,000 4,550,000 4,435,000 4,596,000 4,431,000 4,326,000 4,271,000  4,414,000 4,275,000 3,993,000 4,000,000 3,653,000 3,562,000 3,476,000 3,711,000 3,149,000 2,976,000 2,704,000 2,797,000 2,682,000 2,655,000 2,515,000 2,539,000 2,471,000 2,141,000 2,029,000 2,308,000 1,812,000 1,665,000 1,626,000 1,684,000 1,578,000 1,532,000 1,379,000 1,388,000 1,357,000 1,325,000 1,259,000 1,288,000 1,120,000 1,015,000 1,012,000 3,887,108,000 942,000 1,002,000 948,000 3,513,417,000 944,000 821,000 818,000 2,837,954,000 488,000 781,000 777,000   485,000 468,000 347,000 459,000 463,000 434,000 495,000 289,000 316,000 302,000 
          deferred income taxes
        -4,270,000 -5,400,000 -5,830,000 -24,670,000 -9,189,000 -14,805,000 -9,119,000 -27,521,000 -1,080,000 180,000 998,000 -13,931,000 -3,316,000 -544,000 -1,439,000                                                         450,122,000 -76,000 -46,000 812,798,000               
          share-based compensation
        1,100,000 4,338,000 4,962,000 4,330,000 4,160,000 4,819,000 3,982,000 3,939,000 3,679,000 3,512,000 2,638,000 2,866,000 2,812,000 2,632,000 1,867,000 2,109,000 1,607,000 1,748,000 1,690,000 1,664,000 1,581,000 1,511,000 1,681,000 1,673,000 1,640,000 1,612,000 1,543,000 1,406,000 1,306,000 1,400,000 1,431,000  1,026,000 1,265,000 1,401,000 1,329,000                                                        
          loss on disposal of property and equipment
        234,000 267,000 699,000 -124,000 -65,000 87,000 77,000 311,000 8,000                                                                                   
          amortization of debt issuance costs
        479,000 482,000 539,000 639,000 860,000 860,000 860,000 860,000 861,000 860,000 860,000                                                                                 
          goodwill and other asset impairment
            2,114,000                                                                                       
          loss on refinancing and extinguishment of debt
        7,000 393,000                                                                                         
          gain on sale of business
        -10,000 -76,390,000                                                                                         
          other
        227,000 -45,000 -382,000 -2,549,000 -29,000 -261,000                                                    -114,000        71,000   332,000 -329,000 252,949,000 -89,000 67,000 73,000                 
          change in operating assets and liabilities:
                                                                                                   
          accounts receivable
        5,252,000 -6,259,000 17,607,000 2,505,000 3,801,000 536,000 4,796,000 -3,965,000 -19,769,000 -12,609,000 16,242,000 -6,344,000 -3,083,000 -49,271,000 4,819,000 -6,915,000 617,000 -5,536,000 4,036,000 -3,614,000 -5,643,000 -1,688,000 8,350,000 -6,722,000 6,324,000 -5,873,000 3,390,000 -3,127,000 2,717,000 -4,370,000 755,000  1,846,000 -8,086,000 2,227,000 -881,000 4,069,000 -5,837,000 7,684,000 -9,514,000 998,000 1,305,000 1,209,000 -6,368,000 -793,000 -246,000 155,000 -3,813,000 -1,788,000 -932,000 -4,069,000 -67,000 -1,310,000 493,000 -1,790,000 -1,509,000 -2,460,000 804,000 -4,039,000 557,000 -1,245,000 -898,000 683,000 -2,238,000 1,873,000 -1,175,000 -700,000 -4,071,962,000 -92,000 -1,029,000 -1,917,000 -3,866,408,000 1,250,000 -1,514,000 -2,328,000 -1,795,793,000 190,000 -901,000 -1,496,000 364,000 715,000 -946,000 -1,479,000 601,000 358,000 -1,071,000 -433,000 -313,000 -1,600,000 -639,000 327,000 
          inventories
        4,795,000 18,663,000 -1,958,000 9,007,000 -7,726,000 -7,459,000 -9,939,000 -7,286,000 -22,734,000 -19,625,000 -6,304,000 10,611,000 -7,134,000 14,808,000 -8,330,000 -9,116,000 -5,027,000 -5,066,000 -1,863,000 -878,000 -735,000 5,382,000 -1,319,000 -7,773,000 -2,135,000 2,029,000 -2,132,000 -1,692,000 -4,958,000 -847,000 -2,940,000  -3,641,000 58,000 -276,000 2,490,000 -1,497,000 -2,053,000 -5,910,000 3,343,000 -3,986,000 -5,474,000 -3,310,000 3,490,000 -1,105,000 1,867,000 -3,933,000 531,000 -342,000 -511,000 -3,207,000 2,769,000 -2,775,000 -2,111,000 35,000 1,270,000 48,000 -2,203,000 -2,208,000 -817,000 170,000 -1,225,000 1,438,000 -121,000 -988,000 263,000 910,000 -3,692,280,000 -1,618,000 -2,166,000 -1,936,000 -6,359,670,000 -2,154,000 -847,000 -1,329,000 -1,489,182,000 -119,000 -382,000 -317,000 676,000 -298,000 -141,000 -908,000 -999,000 -430,000 107,000 -9,000 321,000 -440,000 -249,000 -463,000 
          prepaid expenses and other current assets
        -5,568,000 -5,671,000 1,239,000 4,918,000 10,253,000 -14,942,000 -1,733,000  4,726,000 -16,971,000 -12,925,000  5,937,000 -23,151,000 -14,682,000  -115,000 -2,680,000 -1,029,000  172,000 -1,035,000 -1,045,000  -1,796,000 606,000 -1,929,000  562,000 1,211,000 -3,236,000  600,000 -4,326,000 -3,590,000  289,000 386,000 42,000 -2,137,000 159,000 867,000 -2,725,000 1,308,000 -1,412,000 525,000 2,843,000 -1,691,000 -859,000 -8,000 -96,000 -204,000 36,000 -201,000 -1,136,000 -67,000 2,290,000 -550,000 -176,000 168,000 39,000 667,000 -375,000 927,000 -472,000 -192,000 127,000 -48,360,000 -851,000 -85,000 296,000 -121,839,000 -69,000 -313,000 221,000 -551,327,000 -785,000 -539,000 -349,000   349,000 -43,000 66,000 122,000 -296,000 364,000 -309,000 59,000 -46,000 -291,000 
          accounts payable and accrued liabilities
        15,641,000 -9,310,000 14,169,000 -6,387,000 3,819,000 18,047,000 -15,881,000  -13,564,000 29,970,000 4,980,000                                                                                 
          interest expense accrual
        -7,540,000 7,461,000 -7,521,000 7,640,000 -7,653,000 7,537,000 -7,431,000 7,547,000 -7,547,000 7,547,000 -7,711,000 614,000 -10,536,000                                                                               
          change in other non-current assets and non-current liabilities
        452,000 1,915,000 -2,067,000  602,000 3,088,000 -456,000                                                                                     
          net cash from operating activities
        22,703,000 19,444,000 10,853,000 16,542,000 19,363,000 40,253,000 -17,914,000         20,390,000 6,591,000 17,847,000 23,210,000 21,969,000 11,596,000 22,390,000 25,134,000 25,628,000 19,778,000 16,753,000 23,719,000 20,877,000 10,382,000 16,501,000 16,082,000  19,169,000 8,736,000 18,671,000 15,086,000 15,639,000 9,273,000 20,276,000 7,319,000 7,151,000 14,261,000 6,600,000 10,321,000 10,104,000 12,942,000 10,425,000 4,506,000 6,433,000 5,221,000 5,508,000 6,842,000 8,385,000 6,890,000 4,444,000 9,042,000 7,061,000 4,827,000 1,347,000 4,882,000 4,402,000 8,013,000 11,546,000 6,377,000 5,114,000 7,367,000 9,130,000 10,978,629,000 1,254,000 2,282,000 2,835,000 7,866,694,000 4,047,000 2,539,000 -280,000 10,154,096,000 1,305,000 2,942,000 -343,000 5,596,000 3,839,000 1,120,000 1,758,000 3,037,000 132,000 1,783,000 1,770,000 2,056,000 490,000 522,000 -87,000 
          capital expenditures
        -11,669,000 -24,002,000 -32,869,000 -17,157,000 -38,433,000         -6,656,000 -3,940,000 -1,295,000 -8,301,000 -6,844,000 -4,248,000 -3,516,000 -6,337,000 -6,469,000 -5,157,000 -4,802,000 -1,918,000  -5,888,000 -5,994,000 -4,415,000 -6,764,000 -2,792,000 -3,446,000 -3,330,000 -2,821,000 -2,156,000 -2,511,000 -2,856,000 -2,450,000 -2,041,000 -3,432,000 -1,447,000 -1,923,000 -1,923,000 -2,070,000 -6,827,000 -1,930,000 -1,849,000 -1,574,000 -922,000 -561,000 -961,000 -362,000 -923,000 -578,000 -803,000 -468,000 -564,000 -866,000 -1,002,000 -903,000 -469,000 -788,000 -291,000 -471,000 -1,098,000 -772,000 -2,841,000 -620,000 -313,000 
          free cash flows
        22,703,000 7,775,000 -13,149,000 16,542,000 -13,506,000 23,096,000 -56,347,000         20,390,000 -65,000 13,907,000 21,915,000 21,969,000 3,295,000 15,546,000 20,886,000 25,628,000 16,262,000 10,416,000 17,250,000 20,877,000 5,225,000 11,699,000 14,164,000  13,281,000 2,742,000 14,256,000 15,086,000 8,875,000 6,481,000 16,830,000 7,319,000 3,821,000 14,261,000 3,779,000 10,321,000 7,948,000 12,942,000 7,914,000 4,506,000 3,577,000 2,771,000 3,467,000 6,842,000 4,953,000 5,443,000 2,521,000 9,042,000 5,138,000 2,757,000 -5,480,000 4,882,000 2,472,000 6,164,000 9,972,000 6,377,000 4,192,000 6,806,000 8,169,000 10,978,629,000 892,000 1,359,000 2,257,000 7,866,694,000 3,244,000 2,071,000 -844,000 10,154,096,000 439,000 1,940,000 -1,246,000 5,596,000 3,370,000 332,000 1,467,000 3,037,000 -339,000 685,000 998,000 2,056,000 -2,351,000 -98,000 -400,000 
          cash flows from investing activities
                                                                                                   
          purchases of property, equipment and intangible assets
                                                                                                   
          proceeds from the maturities of marketable securities
           325,000 6,685,000 17,491,000 35,923,000 21,905,000        112,636,000                                                                         
          proceeds from sale of business, net of cash divested
        -24,000 121,724,000                                                                                         
          proceeds from the sale of property and equipment and other
        97,000 3,000 207,000 422,000 4,446,000 46,000 -8,000 29,000 41,000                                                                                 
          net cash from investing activities
        -11,556,000 -11,669,000 97,725,000 -15,929,000 -32,447,000 -17,157,000 -33,662,000            -25,407,000         -75,515,000   -7,574,000  -4,567,000 -16,338,000 -39,881,000 -2,947,000 -49,244,000 -5,999,000 -3,946,000      -3,613,000 -17,315,000 -1,330,000 -14,484,000 -10,095,000 -9,230,000 -17,483,000 -11,727,000 -3,008,000 -10,875,000 -12,342,000 -5,754,000 -1,926,000 8,619,000 -16,724,000 -22,682,000 -1,930,000 -1,849,000 -1,574,000 -16,834,000 -7,377,000 -561,000 -961,000 -13,960,465,000 -362,000 -923,000 -8,250,000 -12,606,018,000 -4,272,000 -545,000 -7,165,000 -4,695,979,000 -2,448,000 -2,670,000 -2,903,000 -3,406,000 -17,824,000 -977,000 -1,293,000 -207,000 -473,000 -2,079,000 -472,000 -1,600,000 -2,535,000 -2,868,000 -569,000 
          cash flows from financing activities
                                                                                                   
          issuance of shares related to equity compensation and employee stock purchase plan
        822,000                                                                                           
          tax payments related to share-based awards
        -53,000 -424,000 -223,000 -21,000 -40,000                                                                                       
          repayment of finance lease
        -25,000 -75,000                                                                                         
          repayment of outstanding debt
        -100,000,000                                                                                         
          net cash from financing activities
        744,000 -451,000 -99,393,000 -2,113,000 945,000 -1,409,000 979,000    1,062,000    905,000 -1,029,000 1,223,000 5,571,000 1,048,000 10,743,000 10,143,000 7,563,000 5,095,000 1,490,000 8,702,000 10,505,000 8,708,000 3,282,000 349,000 1,276,000 8,992,000  2,521,000 14,439,000 1,956,000 5,555,000 6,694,000 8,040,000 4,781,000 4,274,000 1,980,000   4,552,000 2,101,000 582,000 3,798,000 7,380,000 3,140,000 3,641,000 5,447,000 6,098,000 2,397,000 760,000 3,236,000 3,170,000 685,000 1,453,000 1,568,000 5,821,000 763,000 4,527,000 923,000 2,156,000 916,000 2,084,000 1,553,000 2,554,375,000 118,000 1,708,000 799,000 5,587,655,000 903,000 1,635,000 807,000 6,006,168,000 386,000 -306,000 4,752,000 -2,261,000 12,940,000 232,000 113,000 -2,090,000 159,000 156,000 -1,109,000 -688,000 1,903,000 3,545,000 135,000 
          effects of foreign exchange rate on cash
        2,673,000 -867,000 694,000 2,799,000 -387,000 -1,933,000 463,000                                                                                     
          net increase in cash and cash equivalents
        14,564,000 6,457,000 9,879,000   19,754,000 -50,134,000 9,174,000 -44,328,000 26,933,000 15,592,000 96,106,000 -32,866,000 -7,098,000 62,625,000 1,594,000 -8,240,000 -20,164,000 -4,319,000 2,120,000 -40,385,000 52,920,000 -5,322,000 15,495,000 -15,640,000 10,125,000 14,601,000 -51,888,000 -8,009,000 4,360,000 14,151,000  17,641,000 5,969,000 -19,111,000 17,684,000 -26,414,000 10,110,000 20,930,000 -11,605,000 -4,516,000 29,052,000 -23,735,000 8,577,000   12,782,000                                             
          cash and cash equivalents, beginning of year
        -4,000 129,004,000 170,611,000                                                                                     
          cash and cash equivalents, end of year
        14,560,000 6,457,000 138,883,000 1,299,000 -12,526,000 19,754,000 120,477,000                                                                                     
          supplemental cash flow information
                                                                                                   
          property and equipment obtained for noncash consideration
                                                                                                  
          right of use assets obtained in exchange for new operating lease liabilities
        2,184,000    1,174,000                                                                                       
          purchases of property, equipment and other non-current intangible assets
         -11,669,000 -24,002,000  -32,869,000 -17,157,000 -38,433,000  -32,121,000 -24,416,000 -30,630,000  -15,151,000 -12,106,000 -12,996,000  -6,656,000 -3,940,000 -1,295,000  -8,301,000 -6,844,000 -4,248,000      -5,157,000 -4,802,000 -1,918,000  -5,888,000 -5,994,000 -4,415,000  -6,764,000 -2,792,000 -3,446,000                                                     
          exercise of stock options and issuance of employee stock purchase plan shares
          905,000 1,060,000 105,000 1,077,000 13,000 1,302,000 79,000 1,062,000 252,000 23,000 15,000 905,000  1,223,000    10,143,000 7,563,000 5,095,000  8,702,000 10,505,000 8,708,000  3,484,000 1,276,000 8,992,000                                                             
          net loss
           -612,196,000 -10,957,000    -2,022,000                                                                                   
          adjustments to reconcile net loss to net cash from operating activities:
                                                                                                   
          impairment of discontinued product lines
                   809,000                                                                                
          loss on sale of minority interest
               -29,000                                                                                    
          goodwill and other long-lived asset impairment
                                                                                                   
          right of use asset amortization
                                                                                                   
          changes in operating assets and liabilities, net of business acquisitions:
                                                                                                   
          changes in other non-current assets and non-current liabilities
                                                                                                   
          purchase of property, equipment and other non-current intangible assets
                                                                                                   
          purchase of marketable securities
                                                                                                   
          business acquisitions, net of cash acquired
                      -1,331,000 -581,000 -11,300,000   1,229,000 -49,650,000 -2,350,000 -3,463,000    -1,485,000 -700,000 -4,203,000    -2,000 -33,590,000      -13,126,000                                                 
          proceeds from issuance of long-term debt
                                                                                                   
          repayment of long-term debt
                                                                                                   
          proceeds from issuance of revolving credit facility
                                                                                                   
          debt issuance costs paid
                                                                                                   
          repayment of finance lease and other
           -73,000 -75,000                                                                                       
          supplementary cash flow information
                                                                                                   
          cash paid for interest
                                                                                                   
          income taxes paid, net of refunds
                                                                                                   
          change in operating assets and liabilities, net of business acquisitions:
                                                                                                   
          cash flows used for investing activities
                                                                                                   
          net decrease in cash and cash equivalents
                                                                                                   
          repayment of long-term debt and finance lease
              -98,000                                                                                     
          prepaid expenses and other assets
                                                                                                   
          accounts payable, accruals and changes
                                                                                                   
          repayment of debt
                   -40,000,000                                                                               
          payment of contingent consideration
                                                                                                   
          debt issuance costs paid and other
               -94,000 -55,000                                                                                   
          cash flows from (for) operating activities
                                                                                                   
          change in other assets and liabilities
                -2,340,000 -3,886,000 -6,006,000                                                                                 
          net cash from (for) operating activities
                -30,206,000 15,714,000 23,009,000                                                                                 
          cash flows (for) from investing activities
                                                                                                   
          purchases of marketable securities
                    -12,523,000  -83,856,000 -93,838,000 -136,748,000  -296,170,000 -140,206,000 -168,318,000  -130,474,000 -117,096,000 -103,432,000  -124,707,000 -116,939,000 -74,549,000  -86,405,000 -88,975,000 -79,968,000  -47,325,000 -39,176,000 -28,616,000 -28,363,000 -39,346,000 -34,742,000 -49,174,000 -29,682,000 -24,494,000 -30,003,000 -21,765,000 -24,499,000 -14,967,000 -21,063,000 -31,162,000 -26,616,000 -12,078,000 -15,235,000 -28,847,000 -17,350,000 -16,082,000 -13,042,000 -25,157,000                  -14,255,000 -14,000,000 -2,000,000 -150,000 -508,000 -4,023,000 -2,002,000     28,000 -28,000 -13,145,000 -18,369,000 
          business acquisitions, net of working capital adjustments and cash acquired
                   -1,516,000 -25,659,000                                                                               
          net cash (for) from investing activities
                  -8,684,000                                                                                 
          cash flows from (for) financing activities
                                                                                                   
          net cash from (for) financing activities
                1,247,000                                                                                   
          effect of foreign exchange rates on cash
                -731,000 -7,000 205,000  4,657,000 -2,113,000 -5,775,000  -668,000    -1,206,000 171,000 181,000                                                                     
          cash and cash equivalents, beginning of period
                163,240,000  44,473,000  75,602,000  66,269,000  41,688,000  83,074,000                                                             
          cash and cash equivalents, end of period
                -44,328,000 26,933,000 178,832,000  -32,866,000 -7,098,000 107,098,000  -8,240,000 -20,164,000 71,283,000  -40,385,000 52,920,000 60,947,000  -15,640,000 10,125,000 56,289,000  -8,009,000 4,360,000 97,225,000                                                             
          loss on sale of minority interest and investment
                                                                                                   
          gain on disposal of property and equipment
                                                                                                   
          cash flows from (for) investing activities
                                                                                                   
          proceeds from the sale of property and equipment
                   144,000 76,000                                                                               
          net cash from (for) investing activities
                   6,876,000   81,638,000                                                                             
          cash flows (for) from financing activities
                                                                                                   
          net cash (for) from financing activities
                   252,000 -39,977,000                                                                               
          cash flows (for) from operating activities
                                                                                                   
          adjustments to reconcile net income to net cash (for) from operating activities:
                                                                                                   
          disposal of property and equipment
                    -16,000                                                                               
          financing fee amortization
                    861,000                                                                               
          accounts payable, accruals and other changes
                    -38,492,000 37,386,000 -7,316,000  -2,256,000 12,724,000 -2,383,000  -2,740,000 -2,468,000 -3,113,000  -1,012,000 -2,447,000 3,760,000  -6,749,000 -1,270,000 564,000  -1,657,000 -1,603,000 2,980,000  -1,256,000 2,574,000 4,262,000                                                     
          net cash (for) from operating activities
                    -17,069,000 -18,726,000 -14,143,000                                                                             
          proceeds from the sale of marketable securities
                    60,257,000 64,275,000 108,488,000  86,426,000    293,203,000 169,846,000 139,184,000  100,740,000 105,168,000 94,540,000  110,988,000 106,743,000 73,096,000  87,726,000 79,099,000 44,502,000  38,435,000 36,406,000 28,116,000 34,120,000 32,690,000 51,731,000 28,648,000 26,243,000 25,077,000 19,396,000 22,946,000 14,211,000 24,913,000 26,351,000 25,732,000 16,984,000 15,902,000 15,725,000 18,428,000 16,387,000 16,079,000 23,734,000 16,070,000                                 
          financing fees paid
                                                                                                  
          accounts payable
                                                                                               287,000 746,000 70,000 -1,313,000 
          accruals and other changes
                                                                                                   
          cash flows for investing activities
                                                                                                   
          net cash for investing activities
                       -17,099,000 -15,386,000    -60,918,000 22,796,000 -35,732,000 -12,208,000 -42,951,000 -18,265,000 -15,361,000              -13,047,000 11,567,000 -36,473,000                                                 
          exercise of stock options and other
                          1,048,000                                                                         
          effects of foreign exchange rates on cash
                          -3,170,000                                                                         
          adjustments to reconcile net income to net cash provided from operating activities:
                                                                                                   
          repurchase of common stock
                                                                                                  
          proceeds from the sales of marketable securities
                                                                                                   
          purchase of non-controlling minority interest
                                                                                                   
          effect of foreign exchange rate on cash
                                                                                                   
          purchases of property, equipment and other assets
                                -3,516,000 -6,337,000 -6,469,000                                                                 
          effect of exchange rates on cash
                                -1,169,000 1,132,000 -2,465,000      518,000                                                           
          excess income tax benefit from exercise of stock options
                                                                                                   
          cash flows used in investing activities
                                                                                                   
          excess income tax benefit from the exercise of stock options
                                           7,593,000 -1,195,000 -1,748,000 -728,000 -255,000 -247,000 -563,000 -1,880,000 -803,000 -540,000 -267,000 -865,000 -809,000 -1,841,000 -522,000 -1,585,000 -1,245,000 -368,000 -471,000 -1,029,000 -397,000 -68,000 -808,000 -556,000 -2,531,000 -139,000 -167,000 -155,000 -1,530,000 225,000 254,000 342,000 -682,428,000 83,000 226,000 119,000 -747,493,000 166,000 253,000 74,000 -460,236,000 -21,000 -4,000 261,000             
          effect of exchange rate on cash
                                   -532,000 1,621,000 2,281,000 -3,349,000    143,000 -10,000 497,000 -1,204,000 -181,000 -2,000 -600,000   -99,000 -166,000 -608,000 -111,000 -3,000 185,000 373,000 104,000 -42,000 -222,000 49,000 102,000 -111,000 -94,000 41,000 -3,000                                 
          net from investing activities
                                                                                                   
          neogen europe
                                                                                                   
          neogen do brasil
                                                                                                   
          neogen latinoamerica
                                                                                                   
          neogen china
                                                                                                   
          neogen india
                                                                                                   
          exercise of stock options
                                        2,521,000 14,439,000 1,956,000 5,304,000 5,499,000 6,292,000 4,053,000 4,019,000 1,733,000 2,318,000 4,293,000    2,933,000                                             
          cash and cash equivalents at beginning of period
                                        77,567,000  55,257,000  66,061,000  40,675,000  50,032,000  49,045,000  35,844,000  22,806,000  13,842,000    14,270,000  13,424,000                 
          cash and cash equivalents at end of period
                                        17,641,000 5,969,000 58,456,000  -26,414,000 10,110,000 76,187,000  -4,516,000 29,052,000 42,326,000  8,426,000 -4,399,000 53,457,000  -336,000 5,000 43,608,000  7,552,000 -3,176,000 44,485,000  5,726,000 14,940,000 22,032,000  3,235,000 10,691,000 33,701,000  -1,347,000 8,890,000 23,564,000  1,010,000 3,067,000 9,654,000  678,000 3,629,000 6,786,000                 
          share based compensation
                                             1,218,000 1,516,000 1,461,000 1,462,000 1,248,000 1,297,000 1,263,000 1,228,000 1,052,000 907,000 997,000 994,000 906,000 789,000 866,000 792,000 724,000 682,000 698,000 685,000 472,000 600,000 413,000 584,000 565,000 675,000 644,000 543,000 525,000 525,000 1,965,457,000 492,000 577,000 474,000 1,890,570,000 460,000 562,000 408,000 1,292,066,000 338,000 326,000 270,000             
          business acquisitions, net of cash required
                                                -3,061,000                                                   
          cash and cash equivalents at beginning of year
                                                                                                   
          cash and cash equivalents at end of year
                                                                                                   
          cash flows from operating activities:
                                                                                                   
          accounts payable, accruals and other
                                                -2,672,000 4,760,000 16,000  2,636,000 -470,000 -106,000  1,244,000 -2,080,000 3,950,000  3,589,000 36,000 -644,000  -256,000                                   
          cash flows for investing activities:
                                                                                                   
          purchases of property and equipment and other noncurrent assets
                                                -3,330,000      -2,511,000                                             
          cash flows from financing activities:
                                                                                                   
          increase in other long-term liabilities
                                                        58,000 54,000 56,000 -68,000 3,000 197,000 -287,000 104,000                                   
          purchases of property, equipment and other noncurrent assets
                                                  -2,821,000                                                 
          net cash from by financing activities
                                                  6,173,000                                                 
          effect of exchange rate on cash and cash equivalents
                                                  -35,000                                                 
          decrease in other long-term liabilities
                                                                                                   
          cash flows from investing activities:
                                                                                                   
          purchases of property and equipment and other assets
                                                    -2,156,000    -2,856,000 -2,450,000 -2,041,000  -3,432,000 -1,447,000 -1,923,000  -1,923,000 -2,070,000 -6,827,000  -1,930,000 -1,849,000 -1,574,000  -922,000 -561,000 -961,000  -362,000 -923,000 -578,000  -803,000 -468,000 -564,000  -866,000 -1,002,000 -903,000  -469,000 -788,000 -291,000  -471,000 -1,098,000 -772,000  -2,841,000 -620,000 -313,000 
          payments for businesses
                                                    -2,040,000                                               
          net proceeds from issuance of common stock
                                                    1,561,000    1,241,000 3,065,000 3,806,000  2,026,000 92,000 2,494,000  513,000 1,413,000 1,098,000  580,000 4,243,000 628,000  673,000 1,715,000 1,256,000  578,000 1,292,000 698,000  783,000 1,459,000 755,000 12,979,454,000 351,000 -275,000 14,470,000 288,000 215,000 298,000 297,000 140,000 391,000 101,000 391,000 12,000 403,000 445,000 135,000 
          increase in cash
                                                                5,726,000 14,940,000 -13,812,000  3,235,000 10,691,000 10,895,000  -1,347,000 8,890,000 9,722,000      678,000 3,629,000 -6,638,000  -757,000 -34,000 1,506,000   375,000 578,000  -182,000 -140,000 189,000  -142,000   
          decrease in cash
                                                        -337,000 5,000 -6,424,000  7,552,000 -3,176,000 -4,560,000              1,010,000 3,067,000 -4,616,000                    -521,000 
          payments for business
                                                            -3,400,000                                       
          acquisition of business
                                                          -10,012,000                                         
          exercise of options
                                                                                                   
          supplement cash flow information
                                                                                                   
          payments for business acquisitions
                                                                -3,000 -810,000          -7,672,000          -18,363,000           
          accounts payable and accruals
                                                                  457,000  -1,307,000 1,635,000 2,197,000  -618,000 2,645,000 3,132,000  -356,000 -24,000 1,685,000  1,213,000 838,000 -1,034,000  -737,000 1,025,000 -1,373,000  1,569,000 -840,000 1,580,000  -1,592,000 908,000 -170,000     
          increases in other long-term liabilities
                                                                  -86,000  44,000                               
          increases (decreases) in other long-term liabilities
                                                                      140,000                             
          income tax benefit from stock plan transactions
                                                                        -225,000 -254,000 -342,000  -83,000 -226,000 -119,000  -166,000 -253,000 -74,000  21,000 4,000 -261,000             
          reductions of other long-term liabilities
                                                                          -45,000    -18,000  -46,000 -77,000 -22,000  -25,000 -27,000 -24,000  -75,000 -66,000 -184,000         
          cash flows from (used in) financing activities
                                                                                                   
          payments on long-term debt
                                                                                             55,000 -1,500,000     
          net increase in cash
                                                                                                   
          (increase) reductions of other long-term liabilities
                                                                                                   
          cash and cash equivalents
                                                                                                   
          at beginning of period
                                                                                                   
          business and product line acquisitions, net of cash acquired
                                                                                                   
          proceeds from long-term debt
                                                                                                   
          interest paid
                                                                                                   
          changes in operating assets and liabilities:
                                                                                                   
          payments on line of credit
                                                                                     -9,955,000             
          payments for business acquisition
                                                                                 -77,000 -6,601,000                 
          sales of marketable securities
                                                                                    12,505,000    1,516,000 4,017,000 1,000,000  -2,000 -107,000 300,000  334,000 20,931,000 18,113,000 
          borrowings (payments) on line of credit
                                                                                                   
          cash at beginning of period
                                                                                    1,809,000  1,972,000  1,365,000  1,061,000 
          cash at end of period
                                                                                    -757,000 -34,000 3,315,000  -1,045,000 375,000 2,550,000  -182,000 -140,000 1,554,000  -142,000 1,199,000 540,000 
          raw materials
                                                                                    -28,000 -907,000 8,494,000   -96,000 5,205,000 -375,000 -971,000       
          work-in-process
                                                                                    663,000 334,000 411,000   493,000 321,000 -106,000       
          finished goods
                                                                                    -516,000 955,000 9,038,000   237,000 9,006,000 1,053,000 1,507,000       
          income tax benefit of stock plan transactions
                                                                                                   
          proceeds from sales of marketable securities
                                                                                                   
          cash, at beginning of year
                                                                                                   
          cash, at end of year
                                                                                                   
          adjustments to reconcile net income to net cash from operating activities
                                                                                                   
          accruals and changes
                                                                                                   
          proceeds from (payments on) long-term debt
                                                                                                   
          cash flows used in investing activities:
                                                                                                   
          business acquisitions
                                                                                                  
          cash flows from (used in) financing activities:
                                                                                                   
          proceeds from (payments on) long-term debt and other liabilities
                                                                                                   
          operating activities:
                                                                                                   
          accruals
                                                                                               -258,000 253,000 -473,000 49,000 
          proceeds from (payments on) long-term borrowings
                                                                                                   
          1.
                                                                                                   
          changes in operating assets and liabilities, net of acquisitions:
                                                                                                   
          acquisitions
                                                                                                  
          proceeds from borrowing on line of credit
                                                                                                1,500,000   
          net payments for repurchase of common stock
                                                                                                   
          payments on long-term borrowings