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Revenue Recognition (Tables) | 6 Months Ended
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Nov. 30, 2020
Disaggregated Revenue | The following table presents the Company’s revenue disaggregated by geographic location:
|  | Three months ended |  |  | Six months ended |
|  | November 30, |  |  | November 30, |
(in thousands) |  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Domestic |  | $ | 69,832 |  |  | $ | 63,317 |  |  | $ | 137,156 |  |  | $ | 126,657 |
International |  |  | 45,168 |  |  |  | 44,486 |  |  |  | 87,169 |  |  |  | 82,570 |
Total revenue |  |  | 115,000 |  |  |  | 107,803 |  |  |  | 224,325 |  |  |  | 209,227 |
Operating Segments [Member] |
Disaggregated Revenue | The following table presents disaggregated revenue by major product and service categories for the three and six month periods ended November 30, 2020 and 2019:
|  | Three Months ended November 30, |  |  | Six Months ended November 30, |
(in thousands) |  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Food Safety |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Natural Toxins, Allergens & Drug Residues |  | $ | 20,001 |  |  | $ | 20,681 |  |  | $ | 39,016 |  |  | $ | 40,796 |
Bacterial & General Sanitation |  |  | 11,235 |  |  |  | 11,615 |  |  |  | 21,166 |  |  |  | 21,931 |
Culture Media & Other |  |  | 13,296 |  |  |  | 12,757 |  |  |  | 24,689 |  |  |  | 24,037 |
Rodenticides, Insecticides & Disinfectants |  |  | 7,978 |  |  |  | 7,447 |  |  |  | 17,586 |  |  |  | 12,896 |
Genomics Services |  |  | 5,024 |  |  |  | 4,354 |  |  |  | 9,262 |  |  |  | 8,216 |
|  | $ | 57,534 |  |  | $ | 56,854 |  |  | $ | 111,719 |  |  | $ | 107,876 |
Animal Safety |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Life Sciences |  | $ | 1,398 |  |  | $ | 1,803 |  |  | $ | 2,723 |  |  | $ | 3,525 |
Veterinary Instruments & Disposables |  |  | 11,974 |  |  |  | 10,486 |  |  |  | 22,349 |  |  |  | 21,822 |
Animal Care & Other |  |  | 9,371 |  |  |  | 7,787 |  |  |  | 17,029 |  |  |  | 14,193 |
Rodenticides, Insecticides & Disinfectants |  |  | 18,471 |  |  |  | 16,186 |  |  |  | 38,385 |  |  |  | 32,904 |
Genomics Services |  |  | 16,252 |  |  |  | 14,687 |  |  |  | 32,120 |  |  |  | 28,907 |
|  | $ | 57,466 |  |  | $ | 50,949 |  |  | $ | 112,606 |  |  | $ | 101,351 |
Total Revenues |  | $ | 115,000 |  |  | $ | 107,803 |  |  | $ | 224,325 |  |  | $ | 209,227 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
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