EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
EARNINGS PER SHARE
Net income	$ 3,137	$ 2,923	$ 8,571	$ 7,696
Weighted-average common shares outstanding	5,848,000	5,790,000	5,833,000	5,778,000
Basic and diluted earnings per share	$ 0.54	$ 0.50	$ 1.47	$ 1.33
Potential common shares outstanding			0	0