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 income [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
Share issuance costs					0
Employee stock purchase plan	$ 279				279
Employee stock purchase plan (in shares)	53
Stock incentive plan	$ 1,926	(1,614)			312
Stock incentive plan (in shares)	274
Withholding taxes on stock-based awards		(971)			(971)
Stock-based compensation		5,599			5,599
Net earnings (loss)			6,039		6,039
Dividends on preferred stock			(1,218)		(1,218)
Accretion on preferred stock			(297)		(297)
Balance at Jul. 02, 2022	$ 438,668	26,254	(143,214)	1,363	323,071
Balance (in shares) at Jul. 02, 2022	107,687
Balance at Apr. 02, 2022	$ 437,451	24,042	(143,925)	1,363	318,931
Balance (in shares) at Apr. 02, 2022	107,579
Share issuance costs					0
Employee stock purchase plan	$ 145				145
Employee stock purchase plan (in shares)	22
Stock incentive plan	$ 1,072	(876)			196
Stock incentive plan (in shares)	86
Withholding taxes on stock-based awards		(882)			(882)
Stock-based compensation		3,970			3,970
Net earnings (loss)			1,471		1,471
Dividends on preferred stock			(609)		(609)
Accretion on preferred stock			(151)		(151)
Balance at Jul. 02, 2022	$ 438,668	26,254	(143,214)	1,363	323,071
Balance (in shares) at Jul. 02, 2022	107,687
Balance at Dec. 31, 2022	$ 440,348	33,184	(155,688)	1,363	319,207
Balance (in shares) at Dec. 31, 2022	107,910
Share issuance costs					(123)
Exchange of Series B-1 preferred stock, net of share issuance costs of $123	$ 13,983				13,983
Exchange of Series B-1 preferred stock, net of share issuance costs of $123 (in share)	6,089
Employee stock purchase plan	$ 309				309
Employee stock purchase plan (in shares)	50
Stock incentive plan	$ 7,650	(7,383)			267
Stock incentive plan (in shares)	1,531
Withholding taxes on stock-based awards		(9,007)			(9,007)
Stock-based compensation		5,921			5,921
Net earnings (loss)			(17,461)		(17,461)
Dividends on preferred stock			(818)		(818)
Accretion on preferred stock			(308)		(308)
Balance at Jul. 01, 2023	$ 462,290	22,715	(174,275)	1,363	312,093
Balance (in shares) at Jul. 01, 2023	115,580
Balance at Apr. 01, 2023	$ 461,132	21,874	(155,015)	1,363	329,354
Balance (in shares) at Apr. 01, 2023	115,380
Share issuance costs	$ (36)				(36)
Employee stock purchase plan	$ 149				149
Employee stock purchase plan (in shares)	25
Stock incentive plan	$ 1,045	(907)			138
Stock incentive plan (in shares)	175
Withholding taxes on stock-based awards		(281)			(281)
Stock-based compensation		2,029			2,029
Net earnings (loss)			(18,838)		(18,838)
Dividends on preferred stock			(304)		(304)
Accretion on preferred stock			(118)		(118)
Balance at Jul. 01, 2023	$ 462,290	$ 22,715	$ (174,275)	$ 1,363	$ 312,093
Balance (in shares) at Jul. 01, 2023	115,580