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
Jun. 30, 2017
Mar. 31, 2017
Manufacturing inventories:    
Finished goods $ 14,924 $ 15,070
Work in process 869 606
Materials and purchased parts 12,028 11,985
Total manufacturing inventories $ 27,821 $ 27,661