EARNINGS PER SHARE (Details) $ / shares in Units, $ in Thousands		3 Months Ended		6 Months Ended
	Jun. 08, 2018 shares	Jun. 30, 2018 USD ($) $ / shares shares	Jun. 30, 2017 USD ($) $ / shares shares	Jun. 30, 2018 USD ($) $ / shares shares	Jun. 30, 2017 USD ($) $ / shares shares
Basic earnings per share [Abstract]
Income available to common stockholders | $		$ 4,375	$ 3,919	$ 9,508	$ 7,583
Weighted average common shares outstanding (in shares)		13,355,564	13,320,438	13,350,995	13,312,188
Earnings per share (in dollars per share) | $ / shares		$ 0.33	$ 0.29	$ 0.71	$ 0.57
Diluted earnings per share [Abstract]
Income available to common stockholders | $		$ 4,375	$ 3,919	$ 9,508	$ 7,583
Weighted average common shares outstanding (in shares)		13,355,564	13,320,438	13,350,995	13,312,188
Add dilutive effects of potential additional common stock (in shares)		106,593	111,230	91,381	103,925
Weighted average common and dilutive potential common shares outstanding (in shares)		13,462,157	13,431,668	13,442,376	13,416,113
Earnings per share assuming dilution (in dollars per share) | $ / shares		$ 0.32	$ 0.29	$ 0.71	$ 0.57
Earnings Per Share [Abstract]
Stock split ratio	1.25
Additional number of shares of common stock issued for every 4 shares of common stock already owned on record date (in shares)	1
Stock Options [Member]
Earnings Per Share [Abstract]
Securities not considered in computing diluted earnings per share (in shares)		0	0	0	0