STOCK OFFERINGS (Details) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended	9 Months Ended	12 Months Ended
	Jun. 30, 2014	Sep. 08, 2011	Mar. 31, 2013	Sep. 30, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Stock offering
Number of shares issued					9,283	9,283
Stock offering in process						$ 5,588	$ 23,109
SBLF capital received						$ 7,834
Preferred stock, par value (in dollars per share)					$ 1,000	$ 1,000
Proceeds from issuance of shares under dividend reinvestment plan						$ 180	$ 913
Series B Preferred Stock
Stock offering
Number of shares issued	400
Dividend rate (as a percent)	6.00%
Period from first, second, third, fourth, and fifth anniversary of original issue date that stock may be convertible	30 days
Conversion price (in dollars per share)	$ 16
Series C Preferred Stock
Stock offering
Number of shares issued	383.4
Dividend rate (as a percent)	6.50%
Period from first, second, third, fourth, and fifth anniversary of original issue date that stock may be convertible	30 days
Conversion price (in dollars per share)	$ 16
Common Class A
Stock offering
Stock offering (in shares)			2,265,054	361,865			610,194
Stock offering in process			$ 27,100	$ 5,800			$ 9,800
Preferred Class A
Stock offering
Dividend rate (as a percent)					1.00%
Stock offering (in shares)		8,500
SBLF capital received		$ 8,500
Preferred stock, par value (in dollars per share)		$ 1,000
Preferred Class A | Through 8 March 2016
Stock offering
Dividend rate (as a percent)					1.00%
Preferred Class A | After 8 March 2016
Stock offering
Dividend rate (as a percent)					9.00%