Earnings (Loss) Per Share (Disclosure of basic and diluted earnings (loss) per share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 01, 2022	Oct. 02, 2021	Oct. 01, 2022	Oct. 02, 2021
Numerator for basic earnings (loss) per share:
Loss from continuing operations	$ (12,639)	$ (3,034)	$ (9,487)	$ (2,280)
Less: dividends and accretion on preferred stock	(764)	(748)	(2,279)	(3,445)
Loss from continuing operations attributable to common shareholders	(13,403)	(3,782)	(11,766)	(5,725)
Earnings from discontinued operations	0	0	2,752	0
Loss attributable to common shareholders	$ (13,403)	$ (3,782)	$ (9,014)	$ (5,725)
Basic weighted-average number of shares outstanding	107,752	107,255	107,566	103,017
Basic earnings (loss) per share:
From continuing operations	$ (0.12)	$ (0.04)	$ (0.11)	$ (0.06)
From discontinued operations	0	0	0.03	0
Basic earnings (loss) per share	$ (0.12)	$ (0.04)	$ (0.08)	$ (0.06)
Numerator for diluted earnings (loss) per share:
Loss from continuing operations	$ (12,639)	$ (3,034)	$ (9,487)	$ (2,280)
Less: dividends and accretion on preferred stock	(764)	(748)	(2,279)	(3,445)
Loss from continuing operations attributable to common shareholders	(13,403)	(3,782)	(11,766)	(5,725)
Earnings from discontinued operations	0	0	2,752	0
Loss attributable to common shareholders	$ (13,403)	$ (3,782)	$ (9,014)	$ (5,725)
Denominator for diluted earnings (loss) per share:
Basic weighted-average number of shares outstanding	107,752	107,255	107,566	103,017
Dilutive effect of the following:
Diluted weighted-average number of shares outstanding	107,752	107,255	107,566	103,017
Diluted earnings (loss) per share:
From continuing operations	$ (0.12)	$ (0.04)	$ (0.11)	$ (0.06)
From discontinued operations	0	0	0.03	0
Diluted earnings (loss) per share	$ (0.12)	$ (0.04)	$ (0.08)	$ (0.06)
Stock options and restricted stock units [Member]
Dilutive effect of the following:
Diluted weighted-average number of shares outstanding	0	0	0	0
Series B-1 preferred stock [Member]
Dilutive effect of the following:
Diluted weighted-average number of shares outstanding	0	0	0	0