Loss Per Share (Schedule of basic and diluted earnings (loss) per share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2024	Jul. 01, 2023	Jun. 29, 2024	Jul. 01, 2023
Numerator
Earnings (loss) from continuing operations	$ (3,781)	$ (11,651)	$ 56	$ (14,478)
Less: dividends and accretion on preferred stock	169	(422)	(264)	(1,126)
Loss from continuing operations attributable to common shareholders	(3,612)	(12,073)	(208)	(15,604)
Loss from discontinued operations	(897)	(7,187)	(2,314)	(2,983)
Loss attributable to common shareholders	$ (4,509)	$ (19,260)	$ (2,522)	$ (18,587)
Denominator
Basic weighted-average number of shares outstanding	116,640	115,471	116,336	112,743
Diluted weighted-average number of shares outstanding	116,640	115,471	116,336	112,743
Basic Loss Per Share
Loss from continuing operations attributable to common shareholders, Basic	$ (0.03)	$ (0.1)	$ (0)	$ (0.14)
Loss from discontinued operations, Basic	(0.01)	(0.06)	(0.02)	(0.03)
Loss attributable to common shareholders, Basic	(0.04)	(0.17)	(0.02)	(0.16)
Diluted Loss Per Share
Loss from continuing operations attributable to common shareholders, Diluted	(0.03)	(0.1)	(0)	(0.14)
Loss from discontinued operations, Diluted	(0.01)	(0.06)	(0.02)	(0.03)
Loss attributable to common shareholders, Diluted	$ (0.04)	$ (0.17)	$ (0.02)	$ (0.16)
Stock options, restricted stock units and performance share units [Member]
Denominator
Diluted weighted-average number of shares outstanding	0	0	0	0
Series B-1 Preferred Stock [Member]
Denominator
Diluted weighted-average number of shares outstanding	0	0	0	0