CONSOLIDATED STATEMENTS OF STOCKHOLDER'S EQUITY - USD ($) $ in Thousands	Total	Common Stock	Common Stock Common Class B	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)
Balance a the beginning at Dec. 28, 2019	$ 73,211	$ 45,075	$ 2,510	$ 157,547	$ (131,113)	$ (808)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Repurchases of Common Stock	(921)	(1,668)		747
Restricted stock grants issued	0	265	131	(396)
Stock-based compensation expense	431			431
Net income (loss)	(9,208)				(9,208)
Other comprehensive income (loss)	278					278
Balance at the end at Dec. 26, 2020	63,791	43,672	2,641	158,329	(140,321)	(530)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Repurchases of Common Stock	(69)	(61)		(8)
Restricted stock grants issued	0	789	374	(1,163)
Restricted stock grants forfeited	(4)	(22)		18
Stock-based compensation expense	481			481
Net income (loss)	1,616				1,616
Other comprehensive income (loss)	560					560
Balance at the end at Dec. 25, 2021	$ 66,375	$ 44,378	$ 3,015	$ 157,657	$ (138,705)	$ 30