FAIR VALUE MEASUREMENTS AND FAIR VALUES OF FINANCIAL INSTRUMENTS - Assets Measured at Fair Value (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Assets Measured at Fair Value
Total, fair value	$ 415,755,000	$ 498,033,000
Marketable equity security	871,000	859,000
Impaired loans with a valuation allowance		3,460,000
Valuation allowance		(453,000)
Impaired loans, net		3,460,000
RPA In
Assets Measured at Fair Value
Fair value derivative asset	0	0
Fair value of the derivative liability	13,000	19,000
Obligations of the U.S. Treasury
Assets Measured at Fair Value
Total, fair value	11,290,000	31,836,000
Obligations of U.S. Government agencies
Assets Measured at Fair Value
Total, fair value	9,946,000	23,430,000
Bank holding company debt securities
Assets Measured at Fair Value
Total, fair value	23,500,000	25,386,000
Obligations Of States And Political Subdivisions Tax Exempt
Assets Measured at Fair Value
Total, fair value	104,199,000	132,623,000
Obligations Of States And Political Subdivisions Taxable
Assets Measured at Fair Value
Total, fair value	50,111,000	56,812,000
Residential Passthrough Securities
Assets Measured at Fair Value
Total, fair value	95,405,000	99,941,000
Residential Collateralized Mortgage Obligations
Assets Measured at Fair Value
Total, fair value	46,462,000	40,296,000
Commercial Mortgage Backed Securities
Assets Measured at Fair Value
Total, fair value	66,682,000	79,686,000
Private label commercial mortgage-backed securities
Assets Measured at Fair Value
Total, fair value	8,160,000	8,023,000
Private label commercial mortgage-backed securities | Level 1
Assets Measured at Fair Value
Total, fair value	0
Private label commercial mortgage-backed securities | Level 2
Assets Measured at Fair Value
Total, fair value	8,160,000
Private label commercial mortgage-backed securities | Level 3
Assets Measured at Fair Value
Total, fair value	0
Recurring fair value measurements
Assets Measured at Fair Value
Total, fair value	415,755,000	498,033,000
Marketable equity security	871,000	859,000
Servicing rights	2,659,000	2,653,000
Total asset fair value measurements	422,079,000	505,183,000
Fair value of the derivative liability	2,796,000	3,657,000
Recurring fair value measurements | Level 1
Assets Measured at Fair Value
Total, fair value	11,290,000	31,836,000
Marketable equity security	871,000	859,000
Servicing rights	0	0
Total asset fair value measurements	12,161,000	32,695,000
Fair value of the derivative liability	0	0
Recurring fair value measurements | Level 2
Assets Measured at Fair Value
Total, fair value	404,465,000	466,197,000
Marketable equity security	0	0
Servicing rights	0	0
Total asset fair value measurements	407,259,000	469,835,000
Fair value of the derivative liability	2,796,000	3,657,000
Recurring fair value measurements | Level 3
Assets Measured at Fair Value
Total, fair value	0	0
Marketable equity security	0	0
Servicing rights	2,659,000	2,653,000
Total asset fair value measurements	2,659,000	2,653,000
Fair value of the derivative liability	0	0
Recurring fair value measurements | RPA Out
Assets Measured at Fair Value
Fair value derivative asset	11,000
Recurring fair value measurements | RPA Out | Level 1
Assets Measured at Fair Value
Fair value derivative asset	0
Recurring fair value measurements | RPA Out | Level 2
Assets Measured at Fair Value
Fair value derivative asset	11,000
Recurring fair value measurements | RPA Out | Level 3
Assets Measured at Fair Value
Fair value derivative asset	0
Recurring fair value measurements | Interest rate swap agreements
Assets Measured at Fair Value
Fair value derivative asset	2,783,000	3,638,000
Fair value of the derivative liability	2,783,000	3,638,000
Recurring fair value measurements | Interest rate swap agreements | Level 1
Assets Measured at Fair Value
Fair value derivative asset	0	0
Fair value of the derivative liability	0	0
Recurring fair value measurements | Interest rate swap agreements | Level 2
Assets Measured at Fair Value
Fair value derivative asset	2,783,000	3,638,000
Fair value of the derivative liability	2,783,000	3,638,000
Recurring fair value measurements | Interest rate swap agreements | Level 3
Assets Measured at Fair Value
Fair value derivative asset	0	0
Fair value of the derivative liability	0	0
Recurring fair value measurements | RPA In
Assets Measured at Fair Value
Fair value of the derivative liability	13,000	19,000
Recurring fair value measurements | RPA In | Level 1
Assets Measured at Fair Value
Fair value of the derivative liability	0	0
Recurring fair value measurements | RPA In | Level 2
Assets Measured at Fair Value
Fair value of the derivative liability	13,000	19,000
Recurring fair value measurements | RPA In | Level 3
Assets Measured at Fair Value
Fair value of the derivative liability	0	0
Recurring fair value measurements | Obligations of the U.S. Treasury
Assets Measured at Fair Value
Total, fair value	11,290,000	31,836,000
Recurring fair value measurements | Obligations of the U.S. Treasury | Level 1
Assets Measured at Fair Value
Total, fair value	11,290,000	31,836,000
Recurring fair value measurements | Obligations of the U.S. Treasury | Level 2
Assets Measured at Fair Value
Total, fair value	0	0
Recurring fair value measurements | Obligations of the U.S. Treasury | Level 3
Assets Measured at Fair Value
Total, fair value	0	0
Recurring fair value measurements | Obligations of U.S. Government agencies
Assets Measured at Fair Value
Total, fair value	9,946,000	23,430,000
Recurring fair value measurements | Obligations of U.S. Government agencies | Level 1
Assets Measured at Fair Value
Total, fair value	0	0
Recurring fair value measurements | Obligations of U.S. Government agencies | Level 2
Assets Measured at Fair Value
Total, fair value	9,946,000	23,430,000
Recurring fair value measurements | Obligations of U.S. Government agencies | Level 3
Assets Measured at Fair Value
Total, fair value	0	0
Recurring fair value measurements | Bank holding company debt securities
Assets Measured at Fair Value
Total, fair value	23,500,000	25,386,000
Recurring fair value measurements | Bank holding company debt securities | Level 1
Assets Measured at Fair Value
Total, fair value	0	0
Recurring fair value measurements | Bank holding company debt securities | Level 2
Assets Measured at Fair Value
Total, fair value	23,500,000	25,386,000
Recurring fair value measurements | Bank holding company debt securities | Level 3
Assets Measured at Fair Value
Total, fair value	0	0
Recurring fair value measurements | Obligations Of States And Political Subdivisions Tax Exempt
Assets Measured at Fair Value
Total, fair value	104,199,000	132,623,000
Recurring fair value measurements | Obligations Of States And Political Subdivisions Tax Exempt | Level 1
Assets Measured at Fair Value
Total, fair value	0	0
Recurring fair value measurements | Obligations Of States And Political Subdivisions Tax Exempt | Level 2
Assets Measured at Fair Value
Total, fair value	104,199,000	132,623,000
Recurring fair value measurements | Obligations Of States And Political Subdivisions Tax Exempt | Level 3
Assets Measured at Fair Value
Total, fair value	0	0
Recurring fair value measurements | Obligations Of States And Political Subdivisions Taxable
Assets Measured at Fair Value
Total, fair value	50,111,000	56,812,000
Recurring fair value measurements | Obligations Of States And Political Subdivisions Taxable | Level 1
Assets Measured at Fair Value
Total, fair value	0	0
Recurring fair value measurements | Obligations Of States And Political Subdivisions Taxable | Level 2
Assets Measured at Fair Value
Total, fair value	50,111,000	56,812,000
Recurring fair value measurements | Obligations Of States And Political Subdivisions Taxable | Level 3
Assets Measured at Fair Value
Total, fair value	0	0
Recurring fair value measurements | Residential Passthrough Securities
Assets Measured at Fair Value
Total, fair value	95,405,000	99,941,000
Recurring fair value measurements | Residential Passthrough Securities | Level 1
Assets Measured at Fair Value
Total, fair value	0	0
Recurring fair value measurements | Residential Passthrough Securities | Level 2
Assets Measured at Fair Value
Total, fair value	95,405,000	99,941,000
Recurring fair value measurements | Residential Passthrough Securities | Level 3
Assets Measured at Fair Value
Total, fair value	0	0
Recurring fair value measurements | Residential Collateralized Mortgage Obligations
Assets Measured at Fair Value
Total, fair value	46,462,000	40,296,000
Recurring fair value measurements | Residential Collateralized Mortgage Obligations | Level 1
Assets Measured at Fair Value
Total, fair value	0	0
Recurring fair value measurements | Residential Collateralized Mortgage Obligations | Level 2
Assets Measured at Fair Value
Total, fair value	46,462,000	40,296,000
Recurring fair value measurements | Residential Collateralized Mortgage Obligations | Level 3
Assets Measured at Fair Value
Total, fair value	0	0
Recurring fair value measurements | Commercial Mortgage Backed Securities
Assets Measured at Fair Value
Total, fair value	66,682,000	79,686,000
Recurring fair value measurements | Commercial Mortgage Backed Securities | Level 1
Assets Measured at Fair Value
Total, fair value	0	0
Recurring fair value measurements | Commercial Mortgage Backed Securities | Level 2
Assets Measured at Fair Value
Total, fair value	66,682,000	79,686,000
Recurring fair value measurements | Commercial Mortgage Backed Securities | Level 3
Assets Measured at Fair Value
Total, fair value	0	0
Recurring fair value measurements | Private label commercial mortgage-backed securities
Assets Measured at Fair Value
Total, fair value		8,023,000
Recurring fair value measurements | Private label commercial mortgage-backed securities | Level 1
Assets Measured at Fair Value
Total, fair value		0
Recurring fair value measurements | Private label commercial mortgage-backed securities | Level 2
Assets Measured at Fair Value
Total, fair value		8,023,000
Recurring fair value measurements | Private label commercial mortgage-backed securities | Level 3
Assets Measured at Fair Value
Total, fair value		0
Nonrecurring fair value measurements
Assets Measured at Fair Value
Total asset fair value measurements	8,264,000	3,282,000
Impaired loans, net	7,786,000	3,007,000
Foreclosed assets held for sale	478,000	275,000
Nonrecurring fair value measurements | Level 1
Assets Measured at Fair Value
Total asset fair value measurements	0	0
Impaired loans, net	0	0
Foreclosed assets held for sale	0	0
Nonrecurring fair value measurements | Level 2
Assets Measured at Fair Value
Total asset fair value measurements	0	0
Impaired loans, net	0	0
Foreclosed assets held for sale	0	0
Nonrecurring fair value measurements | Level 3
Assets Measured at Fair Value
Total asset fair value measurements	8,264,000	3,282,000
Impaired loans, net	7,786,000	3,007,000
Foreclosed assets held for sale	$ 478,000	$ 275,000