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Income Taxes (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Jan. 03, 2014
Dec. 28, 2012
Dec. 30, 2011
Current tax provision:      
U.S. federal (benefit) $ (121) $ 0 $ 0
State 12 11 13
Foreign 721 1,125 1,012
Total current provision 612 1,136 1,025
Deferred tax provision:      
U.S. federal and state 0 0 0
Foreign provision 104 108 331
Total deferred provision 104 108 331
Provision for income taxes $ 716 $ 1,244 $ 1,356