Quarterly report pursuant to Section 13 or 15(d)

Inventories (Details)

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Inventories (Details) - USD ($)
$ in Thousands
Sep. 30, 2015
Mar. 31, 2015
Inventory Disclosure [Abstract]    
Raw materials $ 15,287 $ 12,299
Work in process 3,649 5,060
Finished goods 27,703 24,765
Inventories, gross 46,639 42,124
Valuation reserves (1,249) (1,116)
Inventories, net $ 45,390 $ 41,008