EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
EARNINGS PER SHARE
Net income	$ 14,883	$ 12,618	$ 12,125
Weighted average common shares outstanding	6,871,000	6,373,000	6,326,000
Dilutive effect of common stock equivalents	25,000	13,000	18,000
Weighted average common and common equivalent shares outstanding	6,896,000	6,386,000	6,344,000
Basic earnings per common share	$ 2.17	$ 1.98	$ 1.92
Diluted earnings per common share	$ 2.16	$ 1.98	$ 1.91
Earnings Per Share, Diluted, Other Disclosures
Warrants or shares which were not included in the calculation of diluted earnings per share	34,370	2,864	0