SHAREHOLDERS' EQUITY AND EARNINGS PER COMMON SHARE - Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
SHAREHOLDERS' EQUITY AND EARNINGS PER COMMON SHARE
Net income	$ 43,557	$ 39,299	$ 33,244
Average number of basic common shares outstanding (in shares)	15,040,162	14,968,973	15,245,728
Plus: dilutive effect of stock options and awards outstanding (in shares)	71,799	76,189	25,819
Average number of diluted common shares outstanding (in shares)	15,111,961	15,045,162	15,271,547
Earnings per share:
Basic (in dollars per share)	$ 2.90	$ 2.63	$ 2.18
Diluted (in dollars per share)	$ 2.88	$ 2.61	$ 2.18