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Summary of Significant Accounting Policies (Details 1) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 28, 2013
Dec. 29, 2012
Reconciliation of the changes in the Company's deferred revenue balance    
Balance, beginning of period $ 1,004 $ 1,014
Additions to deferral 1,383 1,131
Revenue recognized (1,254) (1,141)
Balance, end of period $ 1,133 $ 1,004