Consolidated Condensed Statement of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Retained Earnings [Member]	Total
Balances (in shares) at Dec. 26, 2020	13,919
Balances at Dec. 26, 2020	$ 13,919	$ 125,237	$ 139,156
Net income		5,442	5,442
Expense of stock options and restricted stock units		111	111
Exercise of stock options (in shares)	10
Exercise of stock options	$ 10	134	144
Settlement of restricted stock units (in shares)	45
Settlement of restricted stock units	$ 45	(45)	0
Dividends declared		(1,950)	(1,950)
Purchase of stock (in shares)	(49)
Purchase of stock	$ (49)	(954)	(1,003)
Balances (in shares) at Mar. 20, 2021	13,925
Balances at Mar. 20, 2021	$ 13,925	127,975	141,900
Balances (in shares) at Dec. 25, 2021	13,493
Balances at Dec. 25, 2021	$ 13,493	133,122	146,615
Net income		6,654	6,654
Settlement of restricted stock units (in shares)	92
Settlement of restricted stock units	$ 92	(92)	0
Dividends declared		(2,038)	(2,038)
Expense of restricted stock units		388	388
Balances (in shares) at Mar. 19, 2022	13,585
Balances at Mar. 19, 2022	$ 13,585	$ 138,034	$ 151,619