Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands		Total	Common Stock		Treasury		Additional Paid-In Capital	Retained Earnings (Accumulated Deficit)
Common stock, beginning balance (in shares) at Jan. 03, 2023	[1],[2]		6,058,037
Treasury stock, beginning balance, (in shares) at Jan. 03, 2023	[1]				302,984
Beginning balance at Jan. 03, 2023		$ 38,364	$ 61	[2]	$ (35,000)		$ 211,691	$ (138,388)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock plan transactions and other (in shares)	[1],[2]		85,155
Stock plan transactions and other		$ (649)					(649)
Shares repurchased and retired (shares)		(216,494)	(216,494)	[1],[2]
Shares repurchased and retired	[2]	$ (5,004)	$ (2)				(5,002)
Stock-based compensation expense		4,305					4,305
Net loss		(9,856)						(9,856)
Ending balance at Jan. 02, 2024		27,160	$ 59	[2]	$ (35,000)		210,345	(148,244)
Common stock, ending balance (in shares) at Jan. 02, 2024	[1],[2]		5,926,698
Treasury stock, ending balance (in shares) at Jan. 02, 2024	[1]				302,984
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock plan transactions and other (in shares)	[1],[2]		93,537
Stock plan transactions and other		(188)	$ 1	[2]			(189)
Stock-based compensation expense		3,662					3,662
Net loss		(36,213)						(36,213)
Ending balance at Dec. 31, 2024		$ (5,579)	$ 60	[2]	$ (35,000)		213,818	(184,457)
Common stock, ending balance (in shares) at Dec. 31, 2024	[1],[2]		6,020,235
Treasury stock, ending balance (in shares) at Dec. 31, 2024		302,984			302,984	[1]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock plan transactions and other (in shares)	[1],[2]		135,098
Stock plan transactions and other		$ (157)	$ 2	[2]			(159)
Stock-based compensation expense		2,999					2,999
Net loss		(42,568)						(42,568)
Ending balance at Dec. 30, 2025		$ (45,305)	$ 62	[2]	$ (35,000)		$ 216,658	$ (227,025)
Common stock, ending balance (in shares) at Dec. 30, 2025	[1],[2]		6,155,333
Treasury stock, ending balance (in shares) at Dec. 30, 2025		302,984			302,984	[1]

[1] Shares have been retroactively adjusted to reflect the decreased number of shares resulting from a 1-for-8 reverse stock split.

[2] Unless otherwise noted, activity relates to Class A common stock