EARNINGS PER SHARE - Basic earnings per share of common stock (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Basic earnings per share:
Net income	$ 276	$ 309	$ 710	$ 540
Weighted average common shares outstanding, basic	2,871,026	2,857,616	2,867,039	2,856,441
Weighted average common shares outstanding, diluted			2,867,082	2,855,253
Net income per share (basic)	$ 0.10	$ 0.11	$ 0.25	$ 0.19
Net income per share (diluted)	$ 0.10	$ 0.11	$ 0.25	$ 0.19
Options outstanding	0	0	0	0