Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Common shares [Member]	Additional paid-in capital [Member]	Accumulated deficit [Member]	Accumulated other comprehensive income [Member]	Total
Balance at Dec. 30, 2023	$ 464,169	$ 28,188	$ (338,050)	$ 2,009	$ 156,316
Balance (in shares) at Dec. 30, 2023	115,953
Employee stock purchase plan	$ 111				111
Employee stock purchase plan (in shares)	21
Stock incentive plan	$ 537	(334)			203
Stock incentive plan (in shares)	111
Withholding taxes on stock-based awards		(86)			(86)
Stock-based compensation		4,645			4,645
Net earnings			2,879		2,879
Dividends on preferred stock			(305)		(305)
Accretion on preferred stock			(128)		(128)
Balance at Mar. 30, 2024	$ 464,817	32,413	(335,604)	2,009	163,635
Balance (in shares) at Mar. 30, 2024	116,085
Balance at Dec. 28, 2024	$ 471,792	30,775	(355,982)	2,009	148,594
Balance (in shares) at Dec. 28, 2024	117,103
Employee stock purchase plan	$ 109				109
Employee stock purchase plan (in shares)	16
Stock incentive plan	$ 862	(603)			259
Stock incentive plan (in shares)	123
Withholding taxes on stock-based awards		(361)			(361)
Stock-based compensation		1,543			1,543
Net earnings			4,811		4,811
Accretion on preferred stock			(140)		(140)
Balance at Mar. 29, 2025	$ 472,763	$ 31,354	$ (351,311)	$ 2,009	$ 154,815
Balance (in shares) at Mar. 29, 2025	117,242