MERGERS AND ACQUISITIONS - Pro forma results of operations of Riverside Bank since acquisition date (Details) - Pro forma results of operations of Riverside Bank since acquisition date $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2014 USD ($) $ / shares
Total revenue	$ 39,841
Net income	6,411
Net income available to common shareholders	$ 6,245
Earnings per share
Basic | $ / shares	$ 2.26
Diluted | $ / shares	$ 2.24