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Note 14 - Segment Data - Segment Inventory (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Mar. 31, 2022
--- | --- | ---
Inventories, net |  | $ 34,642 | $ 24,606
Operating Segments [Member] |  |  |
Inventories, net |  | 34,642 | 24,606
Operating Segments [Member] | Clinical Genomics [Member] |  |  |
Inventories, net |  | 13,985 | 11,802
Operating Segments [Member] | Sterilization and Disinfection Control [Member] |  |  |
Inventories, net |  | 3,492 | 2,176
Operating Segments [Member] | Biopharmaceutical Development [Member] |  |  |
Inventories, net |  | 8,384 | 4,495
Operating Segments [Member] | Calibration Solutions [Member] |  |  |
Inventories, net |  | 8,781 | 6,133
Corporate, Non-Segment [Member] |  |  |
Inventories, net | [1] | $ 0 | $ 0
[1] | Amortization of intellectual property is included in the calculation of gross margin by segment. Amortization pertaining to other types of intangible assets, such as customer relationships and trademarks, is included in general and administrative on the Consolidated Statements of Income. Within the table above, the depreciation and amortization costs that are included in calculating the gross margin of the noted segment are included; other costs such as amortization that is recorded to general and administrative expense is shown in corporate and other.

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