SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Computation of diluted earnings per common share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2025	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Numerator:
Net income	$ 1,442	$ 2,544	$ (282)	$ 1,908	$ 889	$ 1,183	$ (375)	$ 1,904	$ 5,612	$ 3,601	$ (3,346)
Denominator:
Weighted average common shares outstanding (basic) (in shares)									16,519,809	16,802,383
Effect of stock options (in shares)									0	0
Effect of common stock issuable (in shares)									10,084	0
Weighted average common shares outstanding (diluted) (in shares)									16,529,893	16,802,383
Earnings per common share:
Basic (in dollars per share)	$ 0.09	$ 0.15	$ (0.02)	$ 0.12	$ 0.05	$ 0.07	$ (0.02)	$ 0.11	$ 0.34	$ 0.21
Diluted (in dollars per share)	$ 0.09	$ 0.15	$ (0.02)	$ 0.12	$ 0.05	$ 0.07	$ (0.02)	$ 0.11	$ 0.34	$ 0.21