EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Basic earnings per share [Abstract]
Income available to common stockholders	$ 6,267	$ 5,021	$ 18,302	$ 14,529
Weighted average common shares outstanding (in shares)	14,645,002	13,368,782	14,636,004	13,356,998
Earnings per share (in dollars per share)	$ 0.43	$ 0.38	$ 1.25	$ 1.09
Diluted earnings per share [Abstract]
Income available to common stockholders	$ 6,267	$ 5,021	$ 18,302	$ 14,529
Weighted average common shares outstanding (in shares)	14,645,002	13,368,782	14,636,004	13,356,998
Add dilutive effects of potential additional common stock (in shares)	75,513	123,624	76,136	102,578
Weighted average common and dilutive potential common shares outstanding (in shares)	14,720,515	13,492,406	14,712,140	13,459,576
Earnings per share assuming dilution (in dollars per share)	$ 0.43	$ 0.37	$ 1.24	$ 1.08
Stock Options [Member]
Earnings Per Share [Abstract]
Securities not considered in computing diluted earnings per share (in shares)	0	0	0	0