Quarterly report pursuant to Section 13 or 15(d)

Accrued Liabilities (Details)

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Accrued Liabilities (Details) - USD ($)
$ in Thousands
Sep. 30, 2017
Mar. 31, 2017
Payables and Accruals [Abstract]    
Accrued employee compensation and related expenses $ 7,942 $ 8,364
Customer prepayment 421 168
Warranty reserve 321 300
Professional fees 1,813 1,631
Sales tax payable 1,551 1,573
Other 390 1,106
Total accrued current liabilities $ 12,438 $ 13,142