Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Common shares [Member]	Additional paid-in capital [Member]	Accumulated deficit [Member]	Accumulated other comprehensive loss [Member]	Total
Balance at Jan. 01, 2022	$ 436,463	$ 23,240	$ (147,738)	$ 1,363	$ 313,328
Balance (in shares) at Jan. 01, 2022	107,360
Employee share purchase plan	$ 575				575
Employee share purchase plan (in shares)	88
Stock incentive plan	$ 3,310	(2,257)			1,053
Stock incentive plan (in shares)	462
Withholding taxes on stock-based awards		(1,629)			(1,629)
Stock-based compensation		13,830			13,830
Net loss			(6,433)		(6,433)
Dividends on preferred stock			(2,436)		(2,436)
Accretion on preferred stock			(673)		(673)
Balance at Dec. 31, 2022	$ 440,348	33,184	(157,280)	1,363	317,615
Balance (in shares) at Dec. 31, 2022	107,910
Exchange of Series B preferred stock, net of share issuance costs of $191	$ 13,915				13,915
Exchange of Series B preferred stock, net of share issuance costs of $191 (in shares)	6,089
Employee share purchase plan	$ 583				583
Employee share purchase plan (in shares)	121
Stock incentive plan	$ 9,323	(8,024)			1,299
Stock incentive plan (in shares)	1,833
Withholding taxes on stock-based awards		(9,404)			(9,404)
Stock-based compensation		12,432			12,432
Net loss			(178,789)		(178,789)
Dividends on preferred stock			(1,428)		(1,428)
Accretion on preferred stock			(553)		(553)
Disposition of discontinued operations				646	646
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 share purchase plan	$ 449				449
Employee share purchase plan (in shares)	84
Stock incentive plan	$ 7,174	(5,688)			1,486
Stock incentive plan (in shares)	1,066
Withholding taxes on stock-based awards		(2,915)			(2,915)
Stock-based compensation		11,190			11,190
Net loss			(17,393)		(17,393)
Accretion on preferred stock			(539)		(539)
Balance at Dec. 28, 2024	$ 471,792	$ 30,775	$ (355,982)	$ 2,009	$ 148,594
Balance (in shares) at Dec. 28, 2024	117,103