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SECURITIES - Securities Held to Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Amortized cost and estimated fair value of securities held to maturity [Abstract]
Securities held to maturity	$ 3,597	$ 3,115
Unrecognized Gains	50	24
Unrecognized Losses	0	0
Securities held to maturity	3,647	3,139
Amortized Cost [Abstract]
Within one year	1,644
After one, but within five years	1,953
After five, but within ten years	0
After ten years	0
Total	3,597
Securities held to maturity	3,597	3,115
Fair Value [Abstract]
Within one year	1,666
After one, but within five years	1,981
After five, but within ten years	0
After ten years	0
Total	3,647
Securities held to maturity	3,647	3,139
Obligations of states and political subdivisions
Amortized cost and estimated fair value of securities held to maturity [Abstract]
Securities held to maturity	754	1,045
Unrecognized Gains	0	0
Unrecognized Losses	0	0
Securities held to maturity	754	1,045
Amortized Cost [Abstract]
Securities held to maturity	754	1,045
Fair Value [Abstract]
Securities held to maturity	754	1,045
Time deposits with other financial institutions
Amortized cost and estimated fair value of securities held to maturity [Abstract]
Securities held to maturity	2,843	2,070
Unrecognized Gains	50	24
Unrecognized Losses	0	0
Securities held to maturity	2,893	2,094
Amortized Cost [Abstract]
Securities held to maturity	2,843	2,070
Fair Value [Abstract]
Securities held to maturity	2,893	$ 2,094
Mortgage-backed securities, residential
Amortized Cost [Abstract]
Without single maturity date	0
Fair Value [Abstract]
Without single maturity date	0
SBA loan pools
Amortized Cost [Abstract]
Without single maturity date	0
Fair Value [Abstract]
Without single maturity date	$ 0

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