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EARNINGS PER SHARE (EPS) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jul. 01, 2022	Apr. 01, 2022	Jul. 02, 2021	Apr. 02, 2021	Jul. 01, 2022	Jul. 02, 2021
Net Income (Loss) Available to Common Stockholders, Diluted [Abstract]
Net income (loss)	$ (4,326)	$ (3,773)	$ (4,601)	$ (3,766)	$ (8,099)	$ (8,367)
Net income (loss) - basic	(4,326)		(4,601)		(8,099)	(8,367)
Net income (loss) - diluted	$ (4,326)		$ (4,601)		$ (8,099)	$ (8,367)
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Weighted-average common shares outstanding (in shares)	13,016		12,421		12,901	12,284
Weighted-average common shares outstanding-diluted (in shares)	13,016		12,421		12,901	12,284
Earnings Per Share, Diluted [Abstract]
Basic (in dollars per share)	$ (0.33)		$ (0.37)		$ (0.63)	$ (0.68)
Diluted (in dollars per share)	$ (0.33)		$ (0.37)		$ (0.63)	$ (0.68)

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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