EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
EARNINGS PER SHARE
Net income (loss)	$ (657)	$ (1,820)	$ (29)	$ (333)	$ (2,477)	$ (362)
Denominator for basic earnings (loss) per share: weighted average shares	8,709		8,517		8,517	8,469
Employee stock options and awards	$ 0		$ 0		$ 0	$ 0
Denominator for diluted earnings (loss) per share: adjusted weighted-average shares and assumed conversions of stock options	8,709		8,517		8,665	8,469
Basic earnings (loss) per share	$ (0.08)		$ 0.00		$ (0.29)	$ (0.04)
Diluted earnings (loss) per share	$ (0.08)		$ 0.00		$ (0.29)	$ (0.04)