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Note 12 - Segment Information - Segment Inventory (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Mar. 31, 2023
Total inventories	$ 35,973	$ 34,642
Operating Segments [Member] | Sterilization and Disinfection Control [Member]
Total inventories	7,593	3,492
Operating Segments [Member] | Clinical Genomics [Member]
Total inventories	11,529	13,985
Operating Segments [Member] | Biopharmaceutical Development [Member]
Total inventories	8,183	8,384
Operating Segments [Member] | Calibration Solutions [Member]
Total inventories	$ 8,668	$ 8,781

X

- Definition

Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 852
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481372/852-10-55-10

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483467/210-10-45-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(6))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

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