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Note 14 - Segment Data (Tables) | 12 Months Ended
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Mar. 31, 2025
Notes Tables |
Schedule of Segment Reporting Information, by Segment [Table Text Block] |
|  | Sterilization and Disinfection Control (d) |  |  | Clinical Genomics |  |  | Biopharmaceutical Development |  |  | Calibration Solutions |  |  | Corporate and Other (e) |  |  | Total Company |
Year Ended March 31, 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues (a) |  | $ | 93,418 |  |  | $ | 47,081 |  |  | $ | 48,730 |  |  | $ | 51,749 |  |  | $ | - |  |  | $ | 240,978 |
Less: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation in cost of revenues |  |  | 1,419 |  |  |  | 680 |  |  |  | 224 |  |  |  | 837 |  |  |  | - |  |  |  | 3,160 |
Amortization in cost of revenues |  |  | 503 |  |  |  | 765 |  |  |  | 1,373 |  |  |  | - |  |  |  | - |  |  |  | 2,641 |
Non-cash GKE inventory step-up amortization |  |  | 1,232 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 1,232 |
Other cost of revenues (b) |  |  | 25,604 |  |  |  | 19,966 |  |  |  | 17,220 |  |  |  | 20,275 |  |  |  | 10 |  |  |  | 83,075 |
Total segment cost of revenues |  |  | 28,758 |  |  |  | 21,411 |  |  |  | 18,817 |  |  |  | 21,112 |  |  |  | 10 |  |  |  | 90,108 |
Gross Profit (c) |  | $ | 64,660 |  |  | $ | 25,670 |  |  | $ | 29,913 |  |  | $ | 30,637 |  |  | $ | (10 | ) |  | $ | 150,870 |
Reconciling items: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 134,534 |
Operating income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 16,336 |
Nonoperating expense, net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,375 |
Earnings before income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 5,961 |
Year Ended March 31, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues (a) |  | $ | 75,124 |  |  | $ | 52,588 |  |  | $ | 40,712 |  |  | $ | 47,763 |  |  | $ | - |  |  | $ | 216,187 |
Less: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation in cost of revenues |  |  | 1,204 |  |  |  | 937 |  |  |  | 224 |  |  |  | 666 |  |  |  | - |  |  |  | 3,031 |
Amortization in cost of revenues |  |  | 266 |  |  |  | 4,448 |  |  |  | 1,338 |  |  |  | - |  |  |  | - |  |  |  | 6,052 |
Non-cash GKE inventory step-up amortization |  |  | 1,229 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 1,229 |
Other cost of revenues (b) |  |  | 19,123 |  |  |  | 20,125 |  |  |  | 13,750 |  |  |  | 19,550 |  |  |  | 77 |  |  |  | 72,625 |
Total segment cost of revenues |  |  | 21,822 |  |  |  | 25,510 |  |  |  | 15,312 |  |  |  | 20,216 |  |  |  | 77 |  |  |  | 82,937 |
Gross Profit (c) |  | $ | 53,302 |  |  | $ | 27,078 |  |  | $ | 25,400 |  |  | $ | 27,547 |  |  | $ | (77 | ) |  | $ | 133,250 |
Reconciling items: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 405,325 |
Operating (loss) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (272,075 | )
Nonoperating expense, net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,573 |
(Loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | (275,648 | )
Year Ended March 31, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues (a) |  | $ | 64,609 |  |  | $ | 62,299 |  |  | $ | 47,365 |  |  | $ | 44,807 |  |  | $ | - |  |  | $ | 219,080 |
Less: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation in cost of revenues |  |  | 818 |  |  |  | 1,130 |  |  |  | 314 |  |  |  | 901 |  |  |  | - |  |  |  | 3,163 |
Amortization in cost of revenues |  |  | - |  |  |  | 5,675 |  |  |  | 1,121 |  |  |  | - |  |  |  | - |  |  |  | 6,796 |
Other cost of revenues (b) |  |  | 17,271 |  |  |  | 23,009 |  |  |  | 15,590 |  |  |  | 19,518 |  |  |  | 40 |  |  |  | 75,428 |
Total segment cost of revenues |  |  | 18,089 |  |  |  | 29,814 |  |  |  | 17,025 |  |  |  | 20,419 |  |  |  | 40 |  |  |  | 85,387 |
Gross Profit (c) |  | $ | 46,520 |  |  | $ | 32,485 |  |  | $ | 30,340 |  |  | $ | 24,388 |  |  | $ | (40 | ) |  | $ | 133,693 |
Reconciling items: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 130,373 |
Operating income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,320 |
Nonoperating expense, net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,709 |
(Loss) before income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | (389 | )
Schedule of Segment Reporting Information, by Inventory Segment [Table Text Block] |
|  | March 31, |  |  | March 31, |
|  | 2025 |  |  | 2024 |
Sterilization and Disinfection Control |  | $ | 5,545 |  |  | $ | 7,014 |
Clinical Genomics |  |  | 9,776 |  |  |  | 11,813 |
Biopharmaceutical Development |  |  | 4,934 |  |  |  | 6,304 |
Calibration Solutions |  |  | 5,110 |  |  |  | 7,544 |
Total inventories |  | $ | 25,365 |  |  | $ | 32,675 |
Long-Lived Assets by Geographic Areas [Table Text Block] |
|  | March 31, |  |  | March 31, |
|  | 2025 |  |  | 2024 |
United States |  | $ | 29,200 |  |  | $ | 32,229 |
Sweden |  |  | 11,634 |  |  |  | 1,271 |
Germany |  |  | 6,712 |  |  |  | 7,596 |
Other |  |  | 1,169 |  |  |  | 1,208 |
Total long-lived assets |  | $ | 48,715 |  |  | $ | 42,304 |
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block] |
|  | Year Ended March 31, |
|  | 2025 |  |  | 2024 |  |  | 2023 |
United States |  | $ | 116,615 |  |  | $ | 106,395 |  |  | $ | 117,281 |
China |  |  | 25,312 |  |  |  | 24,933 |  |  |  | 25,797 |
Other |  |  | 99,051 |  |  |  | 84,859 |  |  |  | 76,002 |
Total revenues |  | $ | 240,978 |  |  | $ | 216,187 |  |  | $ | 219,080 |

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