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Income Taxes (Components of income Tax (Benefit) Expense) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 30, 2016
Jan. 01, 2016
Jan. 02, 2015
Current tax (benefit) expense      
Federal $ 8,969 $ 2,042 $ 155
State 1,065 463 131
Foreign 252 224 132
Current Income Tax Expense (Benefit), Total 10,286 2,729 418
Deferred tax (benefit) expense      
Federal 789 3,566 200
State 667 529 (238)
Foreign 883 883 1,875
Deferred Income Tax Expense (Benefit), Total 2,339 4,978 1,837
Income tax expense $ 12,625 $ 7,707 $ 2,255