CONSOLIDATED CONDENSED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Cumulative effect of CECL adoption	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Deficit Cumulative effect of CECL adoption	Accumulated Other Comprehensive Income	Class B Common Stock Common Stock
Balance a the beginning at Dec. 25, 2021	$ 66,375		$ 44,378	$ 157,658	$ (138,706)		$ 30	$ 3,015
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Repurchases of Common Stock	(95)		(105)	10
Restricted stock grants issued	0		580	(854)				274
Restricted stock grants forfeited	0		(6)	6
Stock-based compensation expense	154			154
Net loss	(3,357)				(3,357)
Other comprehensive loss	170						170
Balance at the end at Mar. 26, 2022	63,247		44,847	156,974	(142,063)		200	3,289
Balance a the beginning at Dec. 31, 2022	31,514	$ (198)	43,360	158,331	(173,784)	$ (198)	219	3,388
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Repurchases of Common Stock	(44)		(168)	124
Class B converted into common stock	0		25					(25)
Stock-based compensation expense	197			197
Net loss	(1,758)				(1,758)
Other comprehensive loss	(5)						(5)
Balance at the end at Apr. 01, 2023	$ 29,706		$ 43,217	$ 158,652	$ (175,740)		$ 214	$ 3,363