LOANS AND ALLOWANCE FOR CREDIT LOSSES - Additional Information (Details)	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($) contract loan	Mar. 31, 2022 loan	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($) loan contract item	Dec. 31, 2022 USD ($)
Loans Receivable Held-for-sale, Amount	$ 0			$ 0		$ 71,000
Loans transferred from held for sale portfolio				$ 0	$ 6,652,000
Maximum loan to value ratio with PMI	95.00%			95.00%
Loan Payments, Delinquency Period, Beyond Which Loans are Considered Past Due				10 days
Loan Payments, Delinquency Period, at which time Delinquency Notice is Automatically Generated				10 or 15 days
Loan Payments, Delinquency Period, Beyond Which Loans are Considered Non-Accrual				90 days
Accrued interest exclude from the amortized cost basis of loans	$ 1,906,000			$ 1,906,000
Transfer of Loans Held-for-sale to Portfolio Loans				0	6,652,000
Foreclosed Assets Held For Resale	0			0		0
Consumer Mortgage Loans Secured by Residential Real Estate in Process of Foreclosure	138,000			138,000		41,000
Financing Receivable, Modifications, Recorded Investment						7,480,000
Financing Receivable, Modifications, Unfunded Commitments						0
Modified value of TDR		$ 372,000			$ 372,000
Number of contracts		1	0		1,000
Impaired Financing Receivable Related Allowance Attributable to TDR						0
Impaired Financing Receivable, Interest Income, Accrual Method	6,000	$ 73,000		12,000	$ 147,000
Impaired Financing Receivable Interest Income Non-accrual Method	0	0		0	0
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 372,000			$ 372,000
Unfunded Loan Commitment
Reserve For Unfunded Lending Commitments	260,000			260,000		$ 68,000
Payment Modification
Number of contracts		1,000			1
Commercial and Industrial
Tax free loans	10,000			10,000
Commercial and Industrial | GGLs
Government Guaranteed Loans.	4,542,000			4,542,000
Commercial and Industrial | Unfunded Loan Commitment
Reserve For Unfunded Lending Commitments	35,000			35,000
Commercial and industrial
Financing Receivable Modification Not In Compliance Of Terms					$ 682,000
Number of TDRs not in compliance with restructure | contract		3			3
Impaired Financing Receivable, Interest Income, Accrual Method		$ 3,000			$ 5,000
Political Subdivision Loans
Tax free loans	$ 28,140,000			$ 28,140,000
Commercial Real Estate
Modified value of TDR		$ 372,000			$ 372,000
Number of contracts		1,000			1,000
Financing Receivable Modification Not In Compliance Of Terms					$ 318,000
Number of TDRs not in compliance with restructure | contract		6			6
Impaired Financing Receivable, Interest Income, Accrual Method		$ 70,000			$ 142,000
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 372,000			$ 372,000
Number of loans modified as troubled debt restructuring within previous 12 months, with subsequent payment default | loan		1			0
Commercial Real Estate | Maximum
Term of loan offering				20 years
Maximum loan to value ratio				80.00%
Commercial Real Estate | Payment Modification
Number of contracts		1,000			1,000
Residential Real Estate
Financing Receivable Modification Not In Compliance Of Terms					$ 12,000
Number of loans not in compliance with restructure | contract		1			1
Residential Real Estate | Maximum
Term of loan offering				20 years
Residential Real Estate | Home Equity Term Loans | Maximum
Term of loan offering				15 years
Residential Real Estate | Residential Mortgage | Originated For Resale
Loans held for sale term	30 years			30 years
Residential Real Estate | Residential Mortgage | Originated For Resale | Maximum
Term of loan offering				30 years
Maximum loan to value ratio				80.00%
Residential Real Estate | Home Equity Loan | Maximum
Maximum loan to value ratio				80.00%
Residential Real Estate | Home Equity Line of Credit | Maximum
Maximum loan to value ratio				80.00%
Residential Real Estate | Home Equity Line of Credit | Home Equity Term Loans | Maximum
Term of loan offering				20 years
Agricultural | Maximum
Term of loan offering				10 years
Maximum loan to value ratio				70.00%