EARNINGS PER SHARE - Computation of Basic and Diluted Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Earnings per common share - basic
Net income	$ 4,274	$ 4,934	$ 4,882	$ 8,851
Less: income allocated to participating securities	(21)	(46)	(28)	(93)
Net income allocated to common shareholders	$ 4,253	$ 4,888	$ 4,854	$ 8,758
Weighted-average basic shares outstanding (in shares)	10,882,084	10,008,882	11,012,581	9,843,052
Basic earnings per common share (in dollars per share)	$ 0.39	$ 0.49	$ 0.44	$ 0.89
Earnings per common share - diluted
Net income allocated to common shareholders	$ 4,253	$ 4,888	$ 4,854	$ 8,758
Weighted-average basic shares outstanding (in shares)	10,882,084	10,008,882	11,012,581	9,843,052
Dilutive effect of securities (in shares)	0	95,364	26,373	95,076
Total weighted average diluted shares outstanding (in shares)	10,882,084	10,104,246	11,038,954	9,938,128
Diluted earnings per common share (in dollars per share)	$ 0.39	$ 0.48	$ 0.44	$ 0.88