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
Employee stock purchase plan	$ 134				134
Employee stock purchase plan (in shares)	31
Stock incentive plan	$ 854	(738)			116
Stock incentive plan (in shares)	188
Withholding taxes on stock-based awards		(89)			(89)
Stock-based compensation		1,629			1,629
Net earnings			4,568		4,568
Dividends on preferred stock			(609)		(609)
Accretion on preferred stock			(146)		(146)
Balance at Apr. 02, 2022	$ 437,451	24,042	(143,925)	1,363	318,931
Balance (in shares) at Apr. 02, 2022	107,579
Balance at Dec. 31, 2022	$ 440,348	33,184	(155,688)	1,363	319,207
Balance (in shares) at Dec. 31, 2022	107,910
Exchange of Series B-1 preferred stock, net of share issuance costs of $87	$ 14,019				14,019
Exchange of Series B-1 preferred stock, net of share issuance costs of $87 (in share)	6,089
Employee stock purchase plan	$ 160				160
Employee stock purchase plan (in shares)	25
Stock incentive plan	$ 6,605	(6,476)			129
Stock incentive plan (in shares)	1,356
Withholding taxes on stock-based awards		(8,726)			(8,726)
Stock-based compensation		3,892			3,892
Net earnings			1,377		1,377
Dividends on preferred stock			(514)		(514)
Accretion on preferred stock			(190)		(190)
Balance at Apr. 01, 2023	$ 461,132	$ 21,874	$ (155,015)	$ 1,363	$ 329,354
Balance (in shares) at Apr. 01, 2023	115,380