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Segment Information and Geographic Data (Tables) | 9 Months Ended
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Feb. 28, 2022
Schedule of Segment Information | Segment information follows:
|  |  |  |  |  |  |  | Corporate and |  |  |  |
|  | Food |  |  | Animal |  |  | Eliminations |  |  |  |
(in thousands) |  | Safety |  |  | Safety |  |  | (1) |  |  | Total |
As of and for the three months ended February 28, 2022 |  |  |  |  |  |  |  |  |  |  |  |  |
Product revenues to external customers |  | $ | 55,372 |  |  | $ | 46,194 |  |  | $ | — |  |  | $ | 101,566 |
Service revenues to external customers |  |  | 7,384 |  |  |  | 19,294 |  |  |  | — |  |  |  | 26,678 |
Total revenues to external customers |  |  | 62,756 |  |  |  | 65,488 |  |  |  | — |  |  |  | 128,244 |
Operating income (loss) |  |  | 8,191 |  |  |  | 10,783 |  |  |  | (12,597 | ) |  |  | 6,377 |
Total assets |  |  | 302,605 |  |  |  | 298,854 |  |  |  | 379,746 |  |  |  | 981,205 |
As of and for the three months ended February 28, 2021 |  |  |  |  |  |  |  |  |  |  |  |  |
Product revenues to external customers |  | $ | 51,965 |  |  | $ | 40,851 |  |  | $ | — |  |  | $ | 92,816 |
Service revenues to external customers |  |  | 6,459 |  |  |  | 17,434 |  |  |  | — |  |  |  | 23,893 |
Total revenues to external customers |  |  | 58,424 |  |  |  | 58,285 |  |  |  | — |  |  |  | 116,709 |
Operating income (loss) |  |  | 7,911 |  |  |  | 11,657 |  |  |  | (3,794 | ) |  |  | 15,774 |
Total assets |  |  | 287,690 |  |  |  | 239,179 |  |  |  | 353,347 |  |  |  | 880,216 |
| (1) | Includes corporate assets, consisting principally of cash and cash equivalents, marketable securities, current and deferred tax accounts and overhead expenses not allocated to specific business segments. Also includes the elimination of intersegment transactions .
|  |  |  |  |  |  |  | Corporate and |  |  |  |
|  | Food |  |  | Animal |  |  | Eliminations |  |  |  |
(in thousands) |  | Safety |  |  | Safety |  |  | (1) |  |  | Total |
As of and for the nine months ended February 28, 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product revenues to external customers |  | $ | 171,439 |  |  | $ | 140,261 |  |  | $ | — |  |  | $ | 311,700 |
Service revenues to external customers |  |  | 21,171 |  |  |  | 54,195 |  |  |  | — |  |  |  | 75,366 |
Total revenues to external customers |  |  | 192,610 |  |  |  | 194,456 |  |  |  | — |  |  |  | 387,066 |
Operating income (loss) |  |  | 29,216 |  |  |  | 36,246 |  |  |  | (24,871 | ) |  |  | 40,591 |
As of and for the nine months ended February 28, 2021 |  |  |  |  |  |  |  |  |  |  |  |  |
Product revenues to external customers |  | $ | 151,951 |  |  | $ | 121,337 |  |  | $ | — |  |  | $ | 273,288 |
Service revenues to external customers |  |  | 18,192 |  |  |  | 49,554 |  |  |  | — |  |  |  | 67,746 |
Total revenues to external customers |  |  | 170,143 |  |  |  | 170,891 |  |  |  | — |  |  |  | 341,034 |
Operating income (loss) |  |  | 24,834 |  |  |  | 36,068 |  |  |  | (6,988 | ) |  |  | 53,914 |
(1) Includes elimination of intersegment transactions.
Summary of Disaggregated Revenue by Geographic Location | The following table presents the Company’s revenue disaggregated by geographic location:
|  | Three months ended |  |  | Nine months ended |
|  | February 28, |  |  | February 28, |
(in thousands) |  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
Domestic |  | $ | 77,297 |  |  | $ | 70,387 |  |  | $ | 231,454 |  |  | $ | 207,544 |
International |  |  | 50,947 |  |  |  | 46,322 |  |  |  | 155,612 |  |  |  | 133,490 |
Total revenue |  |  | 128,244 |  |  |  | 116,709 |  |  |  | 387,066 |  |  |  | 341,034 |

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