SECURITIES - Aggreggate fair value and gross unrealized loss of securities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Less Than 12 Months, Fair value
Available-for-sale
U.S. Government Agency notes		$ 34
Municipal bonds	4,679
Mortgage-backed securities: U.S. Government agencies and U.S. Government- sponsored enterprises	6,134	13,063
Collateralized mortgage obligations: U.S. Government agencies
Total temporarily impaired securities	10,813	13,097
Less Than 12 Months, Unrealized losses
Available-for-sale
U.S. Government Agency notes
Municipal bonds	12
Mortgage-backed securities: U.S. Government agencies and U.S. Government- sponsored enterprises	14	175
Collateralized mortgage obligations: U.S. Government agencies
Total temporarily impaired securities	26	175
12 Months or Longer, Fair value
Available-for-sale
U.S. Government Agency notes	336	532
Municipal bonds
Mortgage-backed securities: U.S. Government agencies and U.S. Government- sponsored enterprises	729	26,777
Collateralized mortgage obligations: U.S. Government agencies	1,616	8,281
Total temporarily impaired securities	2,681	35,590
12 Months or Longer, Unrealized losses
Available-for-sale
U.S. Government Agency notes	2	3
Municipal bonds
Mortgage-backed securities: U.S. Government agencies and U.S. Government- sponsored enterprises	6	386
Collateralized mortgage obligations: U.S. Government agencies	1	173
Total temporarily impaired securities	9	562
Total, Fair value
Available-for-sale
U.S. Government Agency notes	336	566
Municipal bonds	4,679
Mortgage-backed securities: U.S. Government agencies and U.S. Government- sponsored enterprises	6,863	39,840
Collateralized mortgage obligations: U.S. Government agencies	1,616	8,281
Total temporarily impaired securities	13,494	48,687
Total, Unrealized losses
Available-for-sale
U.S. Government Agency notes	2	3
Municipal bonds	12
Mortgage-backed securities: U.S. Government agencies and U.S. Government- sponsored enterprises	20	561
Collateralized mortgage obligations: U.S. Government agencies	1	173
Total temporarily impaired securities	$ 35	$ 737