Quarterly report pursuant to Section 13 or 15(d)

Accrued Expenses (Details)

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Accrued Expenses (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 28, 2014
Mar. 29, 2014
Dec. 28, 2013
Jun. 29, 2013
Mar. 30, 2013
Dec. 29, 2012
Payables and Accruals [Abstract]            
Compensation and benefits $ 988   $ 1,317      
Accrued incentive and rebate checks 439   461      
Accrued rent 799   1,121      
Warranty expense 31 30 34 41 42 47
Accrued payables 263   437      
Current portion of deferred gain on sale-leaseback of building 122   365      
Deferred revenue 319   346      
Other 1,009   725      
Total $ 3,970   $ 4,806