EARNINGS PER COMMON SHARE (Computation of Basic and Diluted Earnings per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Basic
Net income per consolidated statements of income	$ 6,291	$ 2,548
Less: Earnings allocated to participating securities	(53)	(49)
Net income available to common stockholder	$ 6,238	$ 2,499
Weighted average common shares outstanding including participating securities	8,192,798	4,633,012
Less: Weighted average participating securities	(68,770)	(89,087)
Weighted average common shares outstanding	8,124,028	4,543,925
Basic earnings per common share	$ 0.77	$ 0.55
Diluted
Net income allocated to common stockholders	$ 6,238	$ 2,499
Weighted average common shares outstanding for basic earnings per common share	8,124,028	4,543,925
Add: Dilutive effects of assumed exercise of stock options	151,215	33,000
Average shares and dilutive potential common shares	8,275,243	4,576,925
Dilutive earnings per common share	$ 0.75	$ 0.55