Note 10 - Provision for Taxes - Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Income before taxes:	$ 30,549	$ 32,922	$ 8,934
Current
Federal	4,819	5,479	1,419
State	758	854	129
Current Income Tax Expense (Benefit), Total	5,577	6,333	1,548
Deferred
Federal	408	665	367
State	159	(10)	(239)
Deferred Income Tax Expense (Benefit), Total	567	655	128
Income Tax Expense (Benefit), Total	$ 6,144	$ 6,988	$ 1,676