Quarterly report pursuant to Section 13 or 15(d)

INVENTORIES - Schedule of Service Parts Inventories (Details)

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INVENTORIES - Schedule of Service Parts Inventories (Details) - USD ($)
$ in Thousands
Sep. 30, 2017
Mar. 31, 2017
Service parts inventories:    
Finished goods $ 14,802 $ 14,851
Component parts 5,113 4,998
Total service parts inventories $ 19,915 $ 19,849