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
Sep. 27, 2014
Jun. 28, 2014
Dec. 28, 2013
Sep. 28, 2013
Jun. 29, 2013
Dec. 29, 2012
Payables and Accruals [Abstract]            
Compensation and benefits $ 1,241   $ 1,317      
Accrued incentive and rebate checks 412   461      
Accrued rent 732   1,121      
Warranty expense 31 31 34 39 41 47
Accrued payables 256   437      
Current portion of deferred gain on sale-leaseback of building 0   365      
Deferred revenue 268   346      
Other 999   725      
Total $ 3,939   $ 4,806