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Note 4 - Supplement Balance Sheet Information - Summary of Inventories (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Mar. 31, 2019
Raw materials	$ 8,144	$ 6,804
Work-in-process	306	428
Finished goods	13,915	2,524
Less: reserve	(3,561)	(2,984)
Inventories, net	$ 18,804	$ 6,772

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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