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Note 11 - Segment Information (Tables) | 3 Months Ended
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Jun. 30, 2025
Notes Tables |
Schedule of Segment Reporting Information, by Segment [Table Text Block] |
Three months ended June 30, 2025 |  | Sterilization and Disinfection Control |  |  | Biopharmaceutical Development |  |  | Calibration Solutions |  |  | Clinical Genomics |  |  | Total |
Revenues (a): |  | $ | 25,410 |  |  | $ | 11,486 |  |  | $ | 12,350 |  |  | $ | 10,297 |  |  | $ | 59,543 |
Less |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation in cost of revenues |  |  | 450 |  |  |  | 89 |  |  |  | 105 |  |  |  | 166 |  |  |  | 810 |
Amortization in cost of revenues |  |  | 139 |  |  |  | 372 |  |  |  | - |  |  |  | 191 |  |  |  | 702 |
Other cost of revenues (b) |  |  | 6,655 |  |  |  | 4,719 |  |  |  | 5,203 |  |  |  | 4,515 |  |  |  | 21,092 |
Total segment cost of revenues |  |  | 7,244 |  |  |  | 5,180 |  |  |  | 5,308 |  |  |  | 4,872 |  |  |  | 22,604 |
Gross Profit (c) |  | $ | 18,166 |  |  | $ | 6,306 |  |  | $ | 7,042 |  |  | $ | 5,425 |  |  | $ | 36,939 |
Reconciling items: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 33,875 |
Operating income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,064 |
Nonoperating (income), net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (3,948 | )
Earnings before income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 7,012 |
Three months ended June 30, 2024 |  | Sterilization and Disinfection Control |  |  | Biopharmaceutical Development |  |  | Calibration Solutions |  |  | Clinical Genomics |  |  | Total |
Revenues (a): |  | $ | 22,957 |  |  | $ | 12,008 |  |  | $ | 11,801 |  |  | $ | 11,404 |  |  | $ | 58,170 |
Less |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation in cost of revenues |  |  | 419 |  |  |  | 46 |  |  |  | 185 |  |  |  | 212 |  |  |  | 862 |
Amortization in cost of revenues |  |  | 111 |  |  |  | 345 |  |  |  | - |  |  |  | 191 |  |  |  | 647 |
Non-cash GKE inventory step-up amortization |  |  | 778 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 778 |
Other cost of revenues (b) |  |  | 6,091 |  |  |  | 3,658 |  |  |  | 4,374 |  |  |  | 4,511 |  |  |  | 18,634 |
Total segment cost of revenues |  |  | 7,399 |  |  |  | 4,049 |  |  |  | 4,559 |  |  |  | 4,914 |  |  |  | 20,921 |
Gross Profit (c) |  | $ | 15,558 |  |  | $ | 7,959 |  |  | $ | 7,242 |  |  | $ | 6,490 |  |  | $ | 37,249 |
Reconciling items: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 31,669 |
Operating income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,580 |
Nonoperating expense, net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,675 |
Earnings before income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 3,905 |
Schedule of Segment Reporting Information, by Inventory Segment [Table Text Block] |
|  | June 30, |  |  | March 31, |
|  | 2025 |  |  | 2025 |
Sterilization and Disinfection Control |  | $ | 6,269 |  |  | $ | 5,545 |
Biopharmaceutical Development |  |  | 5,944 |  |  |  | 4,934 |
Calibration Solutions |  |  | 5,887 |  |  |  | 5,110 |
Clinical Genomics |  |  | 10,006 |  |  |  | 9,776 |
Total inventories |  | $ | 28,106 |  |  | $ | 25,365 |

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