SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Summary of basic and diluted earnings per share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Net income	$ 5,560	$ 14,024
Weighted-average common shares outstanding, basic	6,054	5,974
Basic earnings per share	$ 0.91	$ 2.35
Diluted earnings per share	$ 0.91	$ 2.35