Earnings (Loss) Per Share (Disclosure of basic and diluted earnings (loss) per share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2022	Jul. 03, 2021	Jul. 02, 2022	Jul. 03, 2021
Numerator for basic earnings (loss) per share:
Earnings (loss) from continuing operations	$ 2,498	$ (918)	$ 3,152	$ 754
Less: dividends and accretion on preferred stock	(760)	(744)	(1,515)	(2,697)
Earnings (loss) from continuing operations attributable to common shareholders	1,738	(1,662)	1,637	(1,943)
Earnings (loss) from discontinued operations	(814)	0	2,752	0
Earnings (loss) attributable to common shareholders	$ 924	$ (1,662)	$ 4,389	$ (1,943)
Basic weighted-average number of shares outstanding	107,622	105,676	107,510	100,898
Basic earnings (loss) per share:
From continuing operations	$ 0.02	$ (0.02)	$ 0.02	$ (0.02)
From discontinued operations	(0.01)	0	0.03	0
Basic earnings (loss) per share	$ 0.01	$ (0.02)	$ 0.04	$ (0.02)
Numerator for diluted earnings (loss) per share:
Earnings (loss) from continuing operations	$ 2,498	$ (918)	$ 3,152	$ 754
Less: dividends and accretion on preferred stock	(760)	(744)	(1,515)	(2,697)
Earnings (loss) from continuing operations attributable to common shareholders	1,738	(1,662)	1,637	(1,943)
Earnings (loss) from discontinued operations	(814)	0	2,752	0
Earnings (loss) attributable to common shareholders	$ 924	$ (1,662)	$ 4,389	$ (1,943)
Denominator for diluted earnings (loss) per share:
Basic weighted-average number of shares outstanding	107,622	105,676	107,510	100,898
Dilutive effect of the following:
Diluted weighted-average number of shares outstanding	108,667	105,676	108,495	100,898
Diluted earnings (loss) per share:
From continuing operations	$ 0.02	$ (0.02)	$ 0.02	$ (0.02)
From discontinued operations	(0.01)	0	0.03	0
Diluted earnings (loss) per share	$ 0.01	$ (0.02)	$ 0.04	$ (0.02)
Stock options and restricted stock units [Member]
Dilutive effect of the following:
Diluted weighted-average number of shares outstanding	1,045	0	985	0
Series B-1 preferred stock [Member]
Dilutive effect of the following:
Diluted weighted-average number of shares outstanding	0	0	0	0