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Note 3 - Inventories - Summary of Inventories (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Mar. 31, 2015
Raw materials $ 9,282 $ 10,366
Work-in-process 549 530
Finished goods 5,383 1,913
Less: reserve (498) (389)
Total $ 14,716 $ 12,420