Quarterly report pursuant to Section 13 or 15(d)

Inventories (Details)

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Inventories (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Mar. 31, 2021
Inventory Disclosure [Abstract]    
Raw materials $ 37,259 $ 33,485
Work in process 4,838 4,071
Finished goods 25,467 28,008
Inventories, gross 67,564 65,564
Valuation reserves (1,946) (1,774)
Inventories, net $ 65,618 $ 63,790