CONDENSED FINANCIAL STATEMENTS OF PARENT COMPANY - Cash Flow (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating activities
Net income	$ 1,402	$ 1,406	$ 1,905	$ 2,103	$ (585)	$ 537	$ 969	$ 1,158	$ 6,816	$ 2,079	$ 4,020
Stock option expense									413	321	196
Net cash (used in) provided by operating activities									(21,488)	25,123	1,154
Investing activities
Net cash used in investing activities									(174,857)	(152,138)	(244,039)
Financing activities
Proceeds of stock offering										5,588	23,109
Dividend reinvestment plan										180	913
Proceeds from subordinated debt										29,400
Preferred stock issuance										7,834
Common stock options exercised									(448)	63	323
Cash dividends paid on common stock									(641)	(636)	(537)
Cash dividends paid on preferred stock									(575)	(332)	(85)
Net cash provided by financing activities									195,401	117,249	257,388
(Decrease) increase in cash and cash equivalents									(944)	(9,766)	14,503
Cash and cash equivalents at beginning of period				30,077				39,843	30,077	39,843	25,340
Cash and cash equivalents at end of period	29,133				30,077				29,133	30,077	39,843
Parent Company
Operating activities
Net income									6,816	2,079	4,020
Equity in undistributed earnings of subsidiaries									(6,463)	(947)	(1,663)
Increase in other assets									(529)	(1,778)	340
Increase in other liabilities									(261)	436	57
Stock option expense									413	321	196
Net cash (used in) provided by operating activities									(24)	111	2,950
Investing activities
Investment in subsidiary									(400)	(37,042)	(26,469)
Net cash used in investing activities									(400)	(37,042)	(26,469)
Financing activities
Proceeds of stock offering										5,588	23,109
Dividend reinvestment plan										180	913
Proceeds from subordinated debt										29,400
Preferred stock issuance										7,834
Common stock options exercised									(448)	63	323
Cash dividends paid on common stock									(641)	(636)	(537)
Cash dividends paid on preferred stock									(575)	(332)	(85)
Net cash provided by financing activities									(1,664)	42,097	23,723
(Decrease) increase in cash and cash equivalents									(2,088)	5,166	204
Cash and cash equivalents at beginning of period				$ 5,528				$ 362	5,528	362	158
Cash and cash equivalents at end of period	$ 3,440				$ 5,528				$ 3,440	$ 5,528	$ 362