Condensed Consolidated Statements of Changes in Stockholders' Deficit (Unaudited) - USD ($) $ in Thousands	Total	Class A Common Stock	Class B Common Stock	Class A par value	Class B par value	Additional paid-in capital	Total Common Stock	Preferred Stock Shares	Preferred Stock Par Value	Preferred Stock Additional paid-in capital	Total Preferred Stock	Accumulated deficit
Beginning balance (in shares) at Dec. 27, 2020		11,926,264	0					1,183,272
Beginning balance, value at Dec. 27, 2020	$ (41,883)			$ 1	$ 0	$ (42,776)	$ (42,775)		$ 0	$ 21,788	$ 21,788	$ (20,896)
Net loss	(2,432)											(2,432)
Issuance of common stock through exercise of warrants (in shares)		103,000
Issuance of common stock through exercise of warrants	515					426	426			89	89
Share-based compensation	37					37	37
Measurement period adjustment in accordance with ASU 2015-16	(1,203)					(1,203)	(1,203)
Dividends declared on Series B preferred stock	(610)									(610)	(610)
Ending balance (in shares) at Mar. 28, 2021		12,029,264	0					1,183,272
Ending balance, value at Mar. 28, 2021	(45,576)			1	0	(43,516)	(43,515)		0	21,267	21,267	(23,328)
Beginning balance (in shares) at Dec. 26, 2021		15,109,747	1,270,805					3,221,471
Beginning balance, value at Dec. 26, 2021	(21,655)			2	0	(24,839)	(24,837)		0	55,661	55,661	(52,479)
Net loss	(23,755)											(23,755)
Issuance of common stock through exercise of warrants (in shares)		21,850
Issuance of common stock through exercise of warrants	79					61	61			18	18
Share-based compensation (in shares)		0
Share-based compensation	2,112					2,112	2,112
Dividends declared on common stock	(2,128)					(2,128)	(2,128)
Dividends declared on Series B preferred stock	(1,652)									(1,652)	(1,652)
Exercise of Series B preferred stock put option	(4,107)									(4,107)	(4,107)
Ending balance (in shares) at Mar. 27, 2022		15,131,597	1,270,805					3,221,471
Ending balance, value at Mar. 27, 2022	$ (51,106)			$ 2	$ 0	$ (24,794)	$ (24,792)		$ 0	$ 49,920	$ 49,920	$ (76,234)