FAIR VALUE MEASUREMENTS - Assets measured at fair value (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Fair Value Measurements Using - Level 1
Assets at fair value on a recurring basis
U.S. Treasury notes
U.S. Government agency notes
Municipal bonds
Mortgage backed securities, U.S. Government agencies and U.S. Government-sponsored enterprises
Collateralized mortgage obligations, U.S. Government agencies
Collateralized mortgage obligations, Non-agency
SBA bonds
CRA mutual funds	818	764
Corporate bonds
Preferred Stock	222	246
Securities available-for-sale	1,040	1,010
Assets at fair value on a non-recurring basis
Collateral dependent impaired loans
Other real estate owned
Fair Value Measurements Using - Level 2
Assets at fair value on a recurring basis
U.S. Treasury notes		2,541
U.S. Government agency notes		498
Municipal bonds	15,996	30,385
Mortgage backed securities, U.S. Government agencies and U.S. Government-sponsored enterprises	53,301	32,202
Collateralized mortgage obligations, U.S. Government agencies	1,474	2,014
Collateralized mortgage obligations, Non-agency	3,735	4,948
SBA bonds	2,064	3,096
CRA mutual funds
Corporate bonds	2,013
Preferred Stock
Securities available-for-sale	78,583	75,684
Assets at fair value on a non-recurring basis
Collateral dependent impaired loans
Other real estate owned
Fair Value Measurements Using - Level 3
Assets at fair value on a recurring basis
U.S. Treasury notes
U.S. Government agency notes
Municipal bonds
Mortgage backed securities, U.S. Government agencies and U.S. Government-sponsored enterprises
Collateralized mortgage obligations, U.S. Government agencies
Collateralized mortgage obligations, Non-agency
SBA bonds
CRA mutual funds
Corporate bonds
Preferred Stock
Securities available-for-sale
Assets at fair value on a non-recurring basis
Collateral dependent impaired loans	5,256	15,211
Other real estate owned	3,773
Assets at fair value
Assets at fair value on a recurring basis
U.S. Treasury notes		2,541
U.S. Government agency notes		498
Municipal bonds	15,996	30,385
Mortgage backed securities, U.S. Government agencies and U.S. Government-sponsored enterprises	53,301	32,202
Collateralized mortgage obligations, U.S. Government agencies	1,474	2,014
Collateralized mortgage obligations, Non-agency	3,735	4,948
SBA bonds	2,064	3,096
CRA mutual funds	818	764
Corporate bonds	2,013
Preferred Stock	222	246
Securities available-for-sale	79,623	76,694
Assets at fair value on a non-recurring basis
Collateral dependent impaired loans	5,256	15,211
Other real estate owned	$ 3,773