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
Components of inventories    
Raw materials $ 6,464 $ 5,392
Work-in-process 522 189
Finished goods 5,210 10,624
Total inventories $ 12,196 $ 16,205