Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit
Beginning balance (in shares) at Dec. 29, 2019		9,779,147
Beginning balance at Dec. 29, 2019	$ 39,460	$ 10	$ 46,011	$ (6,561)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(5,710)			(5,710)
Stock option expense	115		115
Ending balance (in shares) at Dec. 31, 2020		9,779,147
Ending balance at Dec. 31, 2020	33,865	$ 10	46,126	(12,271)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(6,963)			(6,963)
Stock option expense	388		388
Issuance of common stock and warrants (in shares)		1,954,000
Issuance of common stock and warrants	3,837	$ 2	3,835
Ending balance (in shares) at Dec. 31, 2021		11,733,147
Ending balance at Dec. 31, 2021	$ 31,127	$ 12	$ 50,349	$ (19,234)