FAIR VALUE - Carrying Amounts and Estimated Fair Values of Financial Instruments - (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Financial assets
Interest bearing time deposits	$ 1,715	$ 1,960
FHLB and other stock, at cost	14,583	11,300
Interest receivable	6,228	5,878
Carrying Value
Financial assets
Cash and cash equivalents	72,002	67,578
Interest bearing time deposits	1,715	1,960
Loans including loans held for sale, net	2,143,926	2,139,765
FHLB and other stock, at cost	14,583	11,300
Interest receivable	11,076	10,779
Financial liabilities
Deposits	(2,644,844)	(2,650,775)
Other borrowings	(31,159)	(28,363)
FHLB advances	(285,557)	(269,488)
Interest payable	(566)	(560)
Subordinated debentures	(41,239)	(41,239)
Fair Value
Financial assets
Cash and cash equivalents	72,002	67,578
Interest bearing time deposits	1,715	1,960
Loans including loans held for sale, net	2,208,287	2,195,092
Interest receivable	11,076	10,779
Financial liabilities
Deposits	(2,643,854)	(2,648,844)
Other borrowings	(31,159)	(28,363)
FHLB advances	(290,171)	(270,977)
Interest payable	(566)	(560)
Subordinated debentures	(24,212)	(24,212)
Level 1
Financial assets
Cash and cash equivalents	56,906	56,104
Financial liabilities
Deposits	(647,187)	(641,439)
Level 2
Financial assets
Cash and cash equivalents	15,096	11,474
Interest bearing time deposits	1,715	1,960
Loans including loans held for sale, net	5,712	7,726
Interest receivable	4,848	4,901
Financial liabilities
Deposits	(1,996,667)	(2,007,405)
Other borrowings	(31,159)	(28,363)
FHLB advances	(290,171)	(270,977)
Interest payable	(566)	(560)
Subordinated debentures	(24,212)	(24,212)
Level 3
Financial assets
Loans including loans held for sale, net	2,202,575	2,187,366
Interest receivable	$ 6,228	$ 5,878