FAIR VALUE - Summary of Assets Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Financial Assets
Investment securities	$ 495,162	$ 513,728
U.S. Treasury securities
Financial Assets
Investment securities	17,143	17,291
U.S. Government Agencies
Financial Assets
Investment securities	4,322	5,135
States and political subdivisions
Financial Assets
Investment securities	188,117	197,414
GSE residential MBSs
Financial Assets
Investment securities	57,351	59,402
GSE commercial MBSs
Financial Assets
Investment securities	4,778
Non-agency CMOs
Financial Assets
Investment securities	38,979	39,758
Asset-backed
Financial Assets
Investment securities	112,315	125,973
Other
Financial Assets
Investment securities	120	377
Fair Value, Measurements, Recurring
Financial Assets
Loans held for sale	6,448	10,880
Totals	518,178	535,125
Financial Liabilities
Derivatives	14,328	11,333
Fair Value, Measurements, Recurring \| Derivatives
Financial Assets
Derivatives	16,568	10,517
Fair Value, Measurements, Recurring \| U.S. Treasury securities
Financial Assets
Investment securities	17,143	17,291
Fair Value, Measurements, Recurring \| U.S. Government Agencies
Financial Assets
Investment securities	4,322	5,135
Fair Value, Measurements, Recurring \| States and political subdivisions
Financial Assets
Investment securities	188,117	197,414
Fair Value, Measurements, Recurring \| GSE residential MBSs
Financial Assets
Investment securities	57,351	59,402
Fair Value, Measurements, Recurring \| GSE commercial MBSs
Financial Assets
Investment securities	4,778
Fair Value, Measurements, Recurring \| GSE residential CMOs
Financial Assets
Investment securities	72,037	68,378
Fair Value, Measurements, Recurring \| Non-agency CMOs
Financial Assets
Investment securities	38,979	39,758
Fair Value, Measurements, Recurring \| Asset-backed
Financial Assets
Investment securities	112,315	125,973
Fair Value, Measurements, Recurring \| Other
Financial Assets
Investment securities	120	377
Fair Value, Measurements, Recurring \| Level 1
Financial Assets
Loans held for sale	0	0
Totals	17,263	17,668
Financial Liabilities
Derivatives	0	0
Fair Value, Measurements, Recurring \| Level 1 \| Derivatives
Financial Assets
Derivatives	0	0
Fair Value, Measurements, Recurring \| Level 1 \| U.S. Treasury securities
Financial Assets
Investment securities	17,143	17,291
Fair Value, Measurements, Recurring \| Level 1 \| U.S. Government Agencies
Financial Assets
Investment securities	0	0
Fair Value, Measurements, Recurring \| Level 1 \| States and political subdivisions
Financial Assets
Investment securities	0	0
Fair Value, Measurements, Recurring \| Level 1 \| GSE residential MBSs
Financial Assets
Investment securities	0	0
Fair Value, Measurements, Recurring \| Level 1 \| GSE commercial MBSs
Financial Assets
Investment securities	0
Fair Value, Measurements, Recurring \| Level 1 \| GSE residential CMOs
Financial Assets
Investment securities	0	0
Fair Value, Measurements, Recurring \| Level 1 \| Non-agency CMOs
Financial Assets
Investment securities	0	0
Fair Value, Measurements, Recurring \| Level 1 \| Asset-backed
Financial Assets
Investment securities	0	0
Fair Value, Measurements, Recurring \| Level 1 \| Other
Financial Assets
Investment securities	120	377
Fair Value, Measurements, Recurring \| Level 2
Financial Assets
Loans held for sale	6,448	10,880
Totals	473,847	490,229
Financial Liabilities
Derivatives	14,328	11,333
Fair Value, Measurements, Recurring \| Level 2 \| Derivatives
Financial Assets
Derivatives	16,553	10,482
Fair Value, Measurements, Recurring \| Level 2 \| U.S. Treasury securities
Financial Assets
Investment securities	0	0
Fair Value, Measurements, Recurring \| Level 2 \| U.S. Government Agencies
Financial Assets
Investment securities	4,322	5,135
Fair Value, Measurements, Recurring \| Level 2 \| States and political subdivisions
Financial Assets
Investment securities	182,522	191,488
Fair Value, Measurements, Recurring \| Level 2 \| GSE residential MBSs
Financial Assets
Investment securities	57,351	59,402
Fair Value, Measurements, Recurring \| Level 2 \| GSE commercial MBSs
Financial Assets
Investment securities	4,778
Fair Value, Measurements, Recurring \| Level 2 \| GSE residential CMOs
Financial Assets
Investment securities	72,037	68,378
Fair Value, Measurements, Recurring \| Level 2 \| Non-agency CMOs
Financial Assets
Investment securities	17,521	18,491
Fair Value, Measurements, Recurring \| Level 2 \| Asset-backed
Financial Assets
Investment securities	112,315	125,973
Fair Value, Measurements, Recurring \| Level 2 \| Other
Financial Assets
Investment securities	0	0
Fair Value, Measurements, Recurring \| Level 3
Financial Assets
Loans held for sale	0	0
Totals	27,068	27,228
Financial Liabilities
Derivatives	0	0
Fair Value, Measurements, Recurring \| Level 3 \| Derivatives
Financial Assets
Derivatives	15	35
Fair Value, Measurements, Recurring \| Level 3 \| U.S. Treasury securities
Financial Assets
Investment securities	0	0
Fair Value, Measurements, Recurring \| Level 3 \| U.S. Government Agencies
Financial Assets
Investment securities	0	0
Fair Value, Measurements, Recurring \| Level 3 \| States and political subdivisions
Financial Assets
Investment securities	5,595	5,926
Fair Value, Measurements, Recurring \| Level 3 \| GSE residential MBSs
Financial Assets
Investment securities	0	0
Fair Value, Measurements, Recurring \| Level 3 \| GSE commercial MBSs
Financial Assets
Investment securities	0
Fair Value, Measurements, Recurring \| Level 3 \| GSE residential CMOs
Financial Assets
Investment securities	0	0
Fair Value, Measurements, Recurring \| Level 3 \| Non-agency CMOs
Financial Assets
Investment securities	21,458	21,267
Fair Value, Measurements, Recurring \| Level 3 \| Asset-backed
Financial Assets
Investment securities	0	0
Fair Value, Measurements, Recurring \| Level 3 \| Other
Financial Assets
Investment securities	$ 0	$ 0

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