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
Dec. 31, 2013
Mar. 31, 2013
Payables and Accruals [Abstract]    
Accrued employee compensation and related expenses $ 5,772 $ 8,047
Interest 23 4,703
Customer prepayment 1,723 2,197
Warranty reserve 687 552
Professional fees 1,499 1,436
Sales tax payable 704 175
Other 712 1,605
Total accrued current liabilities $ 11,120 $ 18,715