Quarterly report pursuant to Section 13 or 15(d)

8. Accrued Expenses (Details)

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8. Accrued Expenses (Details) - USD ($)
$ in Thousands
Oct. 01, 2016
Jul. 02, 2016
Jan. 02, 2016
Oct. 03, 2015
Jul. 04, 2015
Jan. 03, 2015
Payables and Accruals [Abstract]            
Sales tax estimates, including interest $ 4,175   $ 4,804      
Compensation and benefits 1,775   1,446      
Accrued incentive and rebate checks 189   293      
Accrued rent 204   235      
Warranty expense 30 $ 33 42 $ 37 $ 33 $ 30
Accrued payables 412   749      
Deferred revenue 230   413      
Other 1,033   952      
Accrued expenses, current $ 8,048   $ 8,934