Quarterly report pursuant to Section 13 or 15(d)

INVENTORIES - Schedule of Manufacturing Inventories (Details)

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INVENTORIES - Schedule of Manufacturing Inventories (Details) - USD ($)
$ in Thousands
Sep. 30, 2015
Mar. 31, 2015
Manufacturing inventories:    
Finished goods $ 20,246 $ 28,022
Work in process 105 58
Materials and purchased parts 17,641 22,194
Total manufacturing inventories $ 37,992 $ 50,274