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Note 14 - Segment Data - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Mar. 31, 2023
Revenue from Contract with Customer, Excluding Assessed Tax | [1] | $ 240,978 |  | $ 216,187 |  | $ 219,080 |
Depreciation in cost of revenues |  | 3,160 |  | 3,031 |  | 3,163 |
Amortization in cost of revenues |  | 2,641 |  | 6,052 |  | 6,796 |
Non-cash GKE inventory step-up amortization |  | 1,232 |  | 1,229 |  | 0 |
Other cost of revenues (b) | [2] | 83,075 |  | 72,625 |  | 75,428 |
Total segment cost of revenues |  | 90,108 |  | 82,937 |  | 85,387 |
Gross Profit (c) | [3] | 150,870 |  | 133,250 |  | 133,693 |
Operating expense |  | 134,534 |  | 405,325 |  | 130,373 |
Operating income |  | 16,336 |  | (272,075) |  | 3,320 |
Nonoperating expense, net |  | 10,375 |  | 3,573 |  | 3,709 |
Earnings before income taxes |  | 5,961 |  | (275,648) |  | (389) |
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | [1],[4] | 0 |  | 0 |  | 0 |
Depreciation in cost of revenues | [4] | 0 |  | 0 |  | 0 |
Amortization in cost of revenues | [4] | 0 |  | 0 |  | 0 |
Non-cash GKE inventory step-up amortization | [4] | 0 |  | 0 |  |  |
Other cost of revenues (b) | [2],[4] | 10 |  | 77 |  | 40 |
Total segment cost of revenues | [4] | 10 |  | 77 |  | 40 |
Gross Profit (c) | [3],[4] | (10) |  | (77) |  | (40) |
Sterilization and Disinfection Control [Member] | Operating Segments [Member] |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | [1],[5] | 93,418 | [6] | 75,124 | [7] | 64,609 |
Depreciation in cost of revenues | [5] | 1,419 |  | 1,204 |  | 818 |
Amortization in cost of revenues | [5] | 503 |  | 266 |  | 0 |
Non-cash GKE inventory step-up amortization | [5] | 1,232 |  | 1,229 |  |  |
Other cost of revenues (b) | [2],[5] | 25,604 |  | 19,123 |  | 17,271 |
Total segment cost of revenues | [5] | 28,758 |  | 21,822 |  | 18,089 |
Gross Profit (c) | [3],[5] | 64,660 |  | 53,302 |  | 46,520 |
Clinical Genomics [Member] | Operating Segments [Member] |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | [1] | 47,081 |  | 52,588 |  | 62,299 | [8]
Depreciation in cost of revenues |  | 680 |  | 937 |  | 1,130 |
Amortization in cost of revenues |  | 765 |  | 4,448 |  | 5,675 |
Non-cash GKE inventory step-up amortization |  | 0 |  | 0 |  |  |
Other cost of revenues (b) | [2] | 19,966 |  | 20,125 |  | 23,009 |
Total segment cost of revenues |  | 21,411 |  | 25,510 |  | 29,814 |
Gross Profit (c) | [3] | 25,670 |  | 27,078 |  | 32,485 |
Biopharmaceutical Development [Member] | Operating Segments [Member] |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | [1] | 48,730 |  | 40,712 |  | 47,365 |
Depreciation in cost of revenues |  | 224 |  | 224 |  | 314 |
Amortization in cost of revenues |  | 1,373 |  | 1,338 |  | 1,121 |
Non-cash GKE inventory step-up amortization |  | 0 |  | 0 |  |  |
Other cost of revenues (b) | [2] | 17,220 |  | 13,750 |  | 15,590 |
Total segment cost of revenues |  | 18,817 |  | 15,312 |  | 17,025 |
Gross Profit (c) | [3] | 29,913 |  | 25,400 |  | 30,340 |
Calibration Solutions [Member] | Operating Segments [Member] |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | [1] | 51,749 |  | 47,763 |  | 44,807 |
Depreciation in cost of revenues |  | 837 |  | 666 |  | 901 |
Amortization in cost of revenues |  | 0 |  | 0 |  | 0 |
Non-cash GKE inventory step-up amortization |  | 0 |  | 0 |  |  |
Other cost of revenues (b) | [2] | 20,275 |  | 19,550 |  | 19,518 |
Total segment cost of revenues |  | 21,112 |  | 20,216 |  | 20,419 |
Gross Profit (c) | [3] | $ 30,637 |  | $ 27,547 |  | $ 24,388 |
[1] | Intersegment revenues are not significant and are eliminated to arrive at consolidated totals. Revenues as presented are consistent with GAAP measurement principles and our CODM's review of segment information.
[2] | Other segment cost of revenues for each reportable segment includes product costs, personnel costs (including stock based compensation), and other manufacturing and overhead costs necessary to produce and sell our products and services, excluding depreciation, amortization, and non-cash inventory step-up amortization expenses.
[3] | Gross profit as presented is consistent with GAAP measurement principles and our CODM's review of segment information.
[4] | Unallocated corporate expenses and other business activities are reported within Corporate and Other. Certain depreciation expense classified reflected in Corporate and Other in fiscal years 2024 and 2023 has been recast to conform to current year presentation.
[5] | Includes GKE results beginning upon acquisition in fiscal year 2024.
[6] | Revenues of $24,815 from GKE are included in the Sterilization and Disinfection Control division during the year ended March 31, 2025.
[7] | Revenues of $9,289 from GKE are included in the Sterilization and Disinfection Control division during the year ended March 31, 2024 and represent sales made beginning from the acquisition date.
[8] | Revenues in the Clinical Genomics division represent transactions subsequent to the acquisition of Agena Bioscience, Inc. on October 20, 2021.

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