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Income Taxes (Components of Income Tax Expense from Continuing Operations) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Jan. 01, 2021
Dec. 27, 2019
Current tax expense      
Federal $ 2,043 $ 3,125 $ 5,451
State 663 810 1,032
Foreign 654 374 262
Current Income Tax Expense (Benefit), Total 3,360 4,309 6,745
Deferred tax expense (benefit)      
Federal 765 (769) 425
State 303 (81) 670
Foreign 401 (588) (96)
Deferred Income Tax Expense (Benefit) 1,469 (1,438) 999
Income tax expense from continuing operations $ 4,829 $ 2,871 $ 7,744