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Note 7 - Supplemental Balance Sheets Information (Details Textual) - USD ($) $ in Thousands		12 Months Ended
		Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020	Oct. 20, 2021
Depreciation, Total		$ 3,262	$ 2,959	$ 2,234
Agena [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory	[1]				$ 25,480
Agena [Member] | Clinical Genomics [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory		$ 11,802
[1] Includes $7,462 of inventory step-up, which was amortized entirely within fiscal year 2022. Our evaluation of the valuation of inventory was complete as of March 31, 2022.

X

- Definition

The amount of inventory recognized as of the acquisition date.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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