FAIR VALUE MEASUREMENTS - Assets measured at fair value (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
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
Preferred Stock	$ 246	$ 327
Securities available-for-sale	$ 246	$ 246
Assets at fair value on a non-recurring basis
Collateral dependent impaired loans
Mortgage servicing rights
Other real estate owned
Fair Value Measurements Using - Level 2
Assets at fair value on a recurring basis
U.S. Treasury notes	$ 2,541	$ 2,806
U.S. Government agency notes	498	5,874
Municipal bonds	30,385	40,352
Mortgage backed securities, U.S. Government agencies and U.S. Government-sponsored enterprises	32,202	27,709
Collateralized mortgage obligations, U.S. Government agencies	2,014	2,679
Collateralized mortgage obligations, Non-agency	4,948	6,596
SBA bonds	3,096	4,465
CRA mutual funds	$ 764	$ 504
Preferred Stock
Securities available-for-sale	$ 76,448	$ 76,448
Assets at fair value on a non-recurring basis
Collateral dependent impaired loans
Mortgage servicing rights	$ 1,315	$ 1,568
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
Preferred Stock
Securities available-for-sale
Assets at fair value on a non-recurring basis
Collateral dependent impaired loans	$ 15,211	$ 10,463
Mortgage servicing rights
Other real estate owned		$ 1,002
Assets at fair value
Assets at fair value on a recurring basis
U.S. Treasury notes	$ 2,541	2,806
U.S. Government agency notes	498	5,874
Municipal bonds	30,385	40,352
Mortgage backed securities, U.S. Government agencies and U.S. Government-sponsored enterprises	32,202	27,709
Collateralized mortgage obligations, U.S. Government agencies	2,014	2,679
Collateralized mortgage obligations, Non-agency	4,948	6,596
SBA bonds	3,096	4,465
CRA mutual funds	764	504
Preferred Stock	246	327
Securities available-for-sale	76,694	91,312
Assets at fair value on a non-recurring basis
Collateral dependent impaired loans	15,211	10,463
Mortgage servicing rights	$ 1,315	1,568
Other real estate owned		$ 1,002