SECURITIES - Aggreggate fair value and gross unrealized loss of securities (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Less Than 12 Months, Fair value
Available-for-sale
Mortgage-backed securities	$ 27,770	$ 14,750
Collateralized mortgage obligations, Non-agency	203	237
CRA mutual funds		764
Total temporarily impaired securities	27,973	15,751
Less Than 12 Months, Unrealized losses
Available-for-sale
Mortgage-backed securities	(71)	(83)
Collateralized mortgage obligations, Non-agency	(1)
CRA mutual funds		(2)
Total temporarily impaired securities	(72)	(85)
12 Months or Longer, Fair value
Available-for-sale
Mortgage-backed securities	310	53
Collateralized mortgage obligations, Non-agency	175	226
CRA mutual funds
Total temporarily impaired securities	485	279
12 Months or Longer, Unrealized losses
Available-for-sale
Mortgage-backed securities	(6)
Collateralized mortgage obligations, Non-agency	(4)	(7)
CRA mutual funds
Total temporarily impaired securities	(10)	(7)
Total, Fair value
Available-for-sale
Mortgage-backed securities	28,080	14,803
Collateralized mortgage obligations, Non-agency	378	463
CRA mutual funds		764
Total temporarily impaired securities	28,458	16,030
Total, Unrealized losses
Available-for-sale
Mortgage-backed securities	(77)	(83)
Collateralized mortgage obligations, Non-agency	(5)	(7)
CRA mutual funds		(2)
Total temporarily impaired securities	$ (82)	$ (92)