EARNINGS PER SHARE (EPS) - Computation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 29, 2023	Sep. 29, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 30, 2022	Sep. 30, 2022	Jul. 01, 2022	Apr. 01, 2022	Dec. 29, 2023	Dec. 30, 2022	Dec. 31, 2021
Net income (loss)
Net Income (Loss)	$ 8,031	$ 1,566	$ 397	$ 932	$ (425)	$ 76	$ (4,326)	$ (3,773)	$ 10,926	$ (8,448)	$ (8,417)
Net income (loss) - basic									10,926	(8,448)	(8,417)
Net income (loss) - diluted									$ 10,926	$ (8,448)	$ (8,417)
Weighted-average shares outstanding:
Weighted-average common shares outstanding (in shares)	13,503	13,462	13,344	13,266	13,138	13,110	13,016	12,786	13,394	13,013	12,458
Effect of dilutive stock options and restricted stock awards (in shares)									212
Weighted-average common shares outstanding-diluted (in shares)	13,731	13,709	13,487	13,470	13,138	13,360	13,016	12,786	13,606	13,013	12,458
Earnings (Loss) per share:
Basic (in dollars per share)	$ 0.59	$ 0.12	$ 0.03	$ 0.07	$ (0.03)	$ 0.01	$ (0.33)	$ (0.30)	$ 0.82	$ (0.65)	$ (0.68)
Diluted (in dollars per share)	$ 0.58	$ 0.11	$ 0.03	$ 0.07	$ (0.03)	$ 0.01	$ (0.33)	$ (0.30)	$ 0.80	$ (0.65)	$ (0.68)