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
Dec. 31, 2016
Mar. 31, 2016
Manufacturing inventories:    
Finished goods $ 15,806 $ 22,127
Work in process 801 665
Materials and purchased parts 14,357 17,822
Total manufacturing inventories $ 30,964 $ 40,614