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		19,534	19,534
Expense of stock options and restricted stock units		666	666
Dividends declared		(5,804)	(5,804)
Purchase of stock (in shares)	(423)
Purchase of stock	$ (423)	(8,688)	(9,111)
Exercise of stock options (in shares)	10
Exercise of stock options	$ 10	134	144
Settlement of restricted stock units (in shares)	46
Settlement of restricted stock units	$ 46	(46)
Stock issued to directors as compensation (in shares)	6
Stock issued to directors as compensation	$ 6	129	135
Balances (in shares) at Oct. 02, 2021	13,558
Balances at Oct. 02, 2021	$ 13,558	131,162	144,720
Balances (in shares) at Jul. 10, 2021	13,779
Balances at Jul. 10, 2021	$ 13,779	131,354	145,133
Net income		5,966	5,966
Expense of stock options and restricted stock units		229	229
Dividends declared		(1,917)	(1,917)
Purchase of stock (in shares)	(221)
Purchase of stock	$ (221)	(4,470)	(4,691)
Balances (in shares) at Oct. 02, 2021	13,558
Balances at Oct. 02, 2021	$ 13,558	131,162	144,720
Balances (in shares) at Dec. 25, 2021	13,493
Balances at Dec. 25, 2021	$ 13,493	133,122	146,615
Net income		15,285	15,285
Expense of stock options and restricted stock units		1,453	1,453
Dividends declared		(6,115)	(6,115)
Settlement of restricted stock units (in shares)	93
Settlement of restricted stock units	$ 93	(93)
Stock issued to directors as compensation (in shares)	4
Stock issued to directors as compensation	$ 4	47	51
Balances (in shares) at Oct. 01, 2022	13,590
Balances at Oct. 01, 2022	$ 13,590	143,699	157,289
Balances (in shares) at Jul. 09, 2022	13,590
Balances at Jul. 09, 2022	$ 13,590	142,403	155,993
Net income		2,958	2,958
Expense of stock options and restricted stock units		377	377
Dividends declared		(2,039)	(2,039)
Balances (in shares) at Oct. 01, 2022	13,590
Balances at Oct. 01, 2022	$ 13,590	$ 143,699	$ 157,289