Quarterly report pursuant to Section 13 or 15(d)

Accrued Liabilities (Details)

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Accrued Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Mar. 31, 2019
Payables and Accruals [Abstract]    
Accrued employee compensation and related expenses $ 8,509 $ 18,109
Accrued interest 835 1,172
Customer prepayment 588 783
Warranty reserve 500 365
Professional fees 2,470 2,326
Sales tax payable 4,722 2,185
Other 3,763 2,908
Total accrued current liabilities $ 21,387 $ 27,848