EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
EARNINGS PER SHARE
Net income (loss)	$ (797)	$ (807)	$ 300	$ 95	$ (1,604)	$ 395
Denominator for basic earnings (loss) per share: Weighted-average shares	9,104		8,904		9,063	8,861
Employee stock options and awards	$ 0		$ 171		$ 0	$ 191
Denominator for diluted earnings (loss) per share: adjusted weighted-average shares and assumed conversions of stock options	9,104		9,075		9,063	9,052
Basic earnings (loss) per share	$ (0.09)		$ 0.03		$ (0.18)	$ 0.04
Diluted earnings (loss) per share	$ (0.09)		$ 0.03		$ (0.18)	$ 0.04