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Income Taxes (Components of Income Tax Expense (Benefit) from Continuing Operations) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 28, 2018
Dec. 29, 2017
Dec. 30, 2016
Current tax expense      
Federal $ 3,068 $ 3,231 $ 8,969
State 721 445 1,065
Foreign 1,565 669 82
Current Income Tax Expense (Benefit), Total 5,354 4,345 10,116
Deferred tax expense (benefit)      
Federal 220 (2,915) 789
State 365 209 667
Foreign (362) 925 883
Deferred Income Tax Expense (Benefit) 223 (1,781) 2,339
Income tax expense from continuing operations $ 5,577 $ 2,564 $ 12,455