Quarterly report pursuant to Section 13 or 15(d)

Accrued Expenses and Other Liabilities (Details)

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Accrued Expenses and Other Liabilities (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Accrued Expenses and Other Liabilities            
Payroll and related costs $ 3,115   $ 1,429      
Employee benefits 2,565   2,731      
Accrued warranty 3,568 2,859 3,628 3,965 3,506 4,188
Other 2,810   2,541      
Accrued expenses and other liabilities $ 12,058   $ 10,329