Quarterly report pursuant to Section 13 or 15(d)

Accrued Liabilities (Details)

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Accrued Liabilities (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Mar. 31, 2013
Payables and Accruals [Abstract]    
Accrued employee compensation and related expenses $ 6,415 $ 8,047
Interest 53 4,703
Customer prepayment 1,813 2,197
Warranty reserve 731 552
Professional fees 1,261 1,436
Sales tax payable 1,676 175
Other 1,714 1,605
Total accrued current liabilities $ 13,663 $ 18,715