SECURITIES - Amortized cost, fair value and tax equivalent yield of securities (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2019 USD ($)
U.S. Government agency notes - Within 1 year
Amortized cost	$ 49
Fair value	$ 49
Yield	3.20%
U.S. Government agency notes - After 1 year but within 5 years
Amortized cost	$ 292
Fair value	$ 290
Yield	3.88%
U.S. Government agency notes - After 5 years but within 10 years
Amortized cost	$ 4,301
Fair value	$ 4,465
Yield	3.36%
U.S. Government agency notes - Total
Amortized cost	$ 4,642
Fair value	$ 4,804
Yield	3.39%
Municipal bonds - Within 1 year
Amortized cost	$ 61
Fair value	$ 61
Yield	2.63%
Municipal bonds - After 5 year but within 10 years
Amortized cost	$ 1,741
Fair value	$ 1,846
Yield	3.16%
Municipal bonds - After 10 years
Amortized cost	$ 24,802
Fair value	$ 25,398
Yield	3.48%
Municipal bonds - Total
Amortized cost	$ 26,604
Fair value	$ 27,305
Yield	3.46%
Mortgage-backed securities and Collateralized mortgage obligations - U.S. Government agencies
Amortized cost	$ 57,155
Fair value	$ 58,368
Yield	2.88%
Corporate bonds - After 5 years but within 10 years
Amortized cost	$ 4,250
Fair value	$ 4,337
Yield	5.43%
Fair value
Amortized cost	$ 92,651
Fair value	$ 94,814
Yield	3.07%