SECURITIES - Securities Held to Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Amortized cost and estimated fair value of securities held to maturity
Amortized Cost	$ 1,804	$ 2,424
Unrecognized Gains	0	0
Unrecognized Losses	25	22
Allowance for Credit Losses	0
Estimated Fair Value	1,779	2,402
Amortized Cost
Within one year	529
After one, but within five years	635
After five, but within ten years	640
After ten years	0
Total	1,804
Amortized Cost	1,804	2,424
Fair Value
Within one year	523
After one, but within five years	616
After five, but within ten years	640
After ten years	0
Total	1,779
Total	1,779	2,402
Obligations of states and political subdivisions
Amortized cost and estimated fair value of securities held to maturity
Amortized Cost	824	952
Unrecognized Gains	0	0
Unrecognized Losses	0	0
Allowance for Credit Losses	0
Estimated Fair Value	824	952
Amortized Cost
Amortized Cost	824	952
Fair Value
Total	824	952
Time deposits with other financial institutions
Amortized cost and estimated fair value of securities held to maturity
Amortized Cost	980	1,472
Unrecognized Gains	0	0
Unrecognized Losses	25	22
Allowance for Credit Losses	0
Estimated Fair Value	955	1,450
Amortized Cost
Amortized Cost	980	1,472
Fair Value
Total	955	$ 1,450
Mortgage-backed securities, residential
Amortized Cost
Without single maturity date	0
Fair Value
Without single maturity date	0
SBA loan pools
Amortized Cost
Without single maturity date	0
Fair Value
Without single maturity date	$ 0