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]	Non-controlling interest [Member]	Total
Balance at Dec. 28, 2019	$ 318,456	$ 35,767	$ (214,469)	$ (11,271)	$ 1,888	$ 130,371
Balance (in shares) at Dec. 28, 2019	88,090
Employee share purchase plan	$ 462					462
Employee share purchase plan (in shares)	114
Stock incentive plan	$ 7,627	(6,041)				1,586
Stock incentive plan (in shares)	1,990
Withholding taxes on stock-based awards		(4,080)				(4,080)
Stock-based compensation		12,216				12,216
Net earnings (loss)			82,428		(301)	82,127
Dividends on preferred stock			(8,636)			(8,636)
Accretion on preferred stock			(1,692)			(1,692)
Currency translation adjustment				2,405	(44)	2,361
Capital contribution to majority-owned subsidiary					67	67
Dividend paid by subsidiary to non-controlling interest					(66)	(66)
Disposition of discontinued operations				10,229	(1,544)	8,685
Balance at Jan. 02, 2021	$ 326,545	37,862	(142,369)	1,363	0	223,401
Balance (in shares) at Jan. 02, 2021	90,194
Exchange of Series A preferred stock, net of share issuance costs of $287	$ 87,188					87,188
Exchange of Series A preferred stock, net of share issuance costs of $287 (in shares)	12,633
Employee share purchase plan	$ 583					583
Employee share purchase plan (in shares)	67
Stock incentive plan	$ 22,147	(15,004)				7,143
Stock incentive plan (in shares)	4,466
Withholding taxes on stock-based awards		(8,718)				(8,718)
Stock-based compensation		9,100				9,100
Net earnings (loss)			(1,172)			(1,172)
Dividends on preferred stock			(3,477)			(3,477)
Accretion on preferred stock			(720)			(720)
Balance at Jan. 01, 2022	$ 436,463	23,240	(147,738)	1,363	0	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 earnings (loss)			(4,841)
Dividends on preferred stock			(2,436)			(2,436)
Accretion on preferred stock			(673)			(673)
Balance at Dec. 31, 2022	$ 440,348	$ 33,184	$ (155,688)	$ 1,363	$ 0	$ 319,207
Balance (in shares) at Dec. 31, 2022	107,910