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Note 10 - Provision for Taxes - Income Tax Rate Reconciliation (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 25, 2021
Dec. 26, 2020
Dec. 28, 2019
Income tax at statutory rate $ 6,415 $ 6,914 $ 1,876
Increase (decrease) in income tax resulting from      
State tax expense, net of federal effect 724 668 (86)
Federal true-ups (38) (103) (60)
Federal tax credits (251) (114) (93)
Captive insurance earnings (456) (443) 0
Incentive stock options (214) (4) (1)
Other (36) 70 40
Income Tax Expense (Benefit), Total $ 6,144 $ 6,988 $ 1,676