SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)		12 Months Ended
	Jan. 01, 2023 USD ($)	Dec. 31, 2024 USD ($) segment	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Summary of Significant Accounting Policies
Accrued interest receivable on held to maturity debt securities		$ 364,000	$ 384,000
Accrued interest receivable on available for sale debt securities		286,000
Restricted stock investments with the FHLB		2,300,000	1,600,000
Accrued interest receivable		1,600,000	1,700,000
Net unamortized origination costs		$ 93,000	171,000
Usual period of lines of credit for commercial, financial and agricultural lending		5 years
Unfunded commitments		$ 58,600,000	56,000,000
Unfunded commitments, allowance for credit loss		$ 312,000	419,000
Concentration of credit, benchmark description		There were no other concentrations of credit to any industry equaling more than 15% of total capital.
Mortgage servicing rights		$ 69,000	83,000
Goodwill impairment loss		0	0
Accrued benefit liability		1,100,000	1,100,000
Other postretirement expense (benefit)		32,000	(20,000)
Investment in low-income housing limited partnership		832,000	1,200,000
Advertising expense		$ 221,000	228,000
Number of Operating Segments | segment		1
Number of reportable segment | segment		1
Net decrease to retained earnings		$ 47,457,000	40,137,000	$ 35,693,000
Impact of adopting ASC 326
Summary of Significant Accounting Policies
Net decrease to retained earnings			(854,000)
Impact of adopting ASC 326 | Accounting Standards Update 2016-13
Summary of Significant Accounting Policies
Net decrease to retained earnings	$ (854,000)
Addition to allowance for credit losses	$ (354,000)
Atlantic Community Bankers Bank
Summary of Significant Accounting Policies
Restricted stock investments		80,000	80,000
Client Owned Core Processing
Summary of Significant Accounting Policies
Restricted stock investments		130,000	0
Shareholder Service
Summary of Significant Accounting Policies
Trust and Estate fees recognized		$ 49,000	$ 55,000
Leasehold Improvements
Summary of Significant Accounting Policies
Estimated useful life of property and equipment, description		us-gaap:UsefulLifeShorterOfTermOfLeaseOrAssetUtilityMember
Construction Loan | Credit Exposure | Credit Concentration Risk
Summary of Significant Accounting Policies
Percentage of capital representing credit exposure to lessors		25.00%
Residential Portfolio Segment | Credit Exposure | Credit Concentration Risk
Summary of Significant Accounting Policies
Percentage of capital representing credit exposure to lessors		83.00%
Real Estate Portfolio Segment | Credit Exposure | Credit Concentration Risk
Summary of Significant Accounting Policies
Percentage of capital representing credit exposure to lessors		17.00%
Real Estate Portfolio Segment | Mortgage Loan
Summary of Significant Accounting Policies
Loan period for lending, maximum		25 years
Maximum loan-to-value ratio		80.00%
Real Estate Portfolio Segment | Commercial Loan
Summary of Significant Accounting Policies
Loan period for lending, maximum		20 years
Maximum loan-to-value ratio		80.00%
Real Estate Portfolio Segment | Home Equity Installments
Summary of Significant Accounting Policies
Loan period for lending, maximum		15 years
Maximum loan-to-value ratio		80.00%
Real Estate Portfolio Segment | Home Equity Lines of Credit
Summary of Significant Accounting Policies
Loan period for lending, maximum		20 years
Maximum loan-to-value ratio		90.00%
Commercial Portfolio Segment | Credit Exposure | Credit Concentration Risk
Summary of Significant Accounting Policies
Percentage of capital representing credit exposure to lessors		48.00%
Non-Residential Portfolio | Credit Exposure | Credit Concentration Risk
Summary of Significant Accounting Policies
Percentage of capital representing credit exposure to lessors		64.00%
Minimum | Furniture and Equipment
Summary of Significant Accounting Policies
Estimated useful life of property and equipment		3 years
Minimum | Buildings
Summary of Significant Accounting Policies
Estimated useful life of property and equipment		25 years
Maximum | Furniture and Equipment
Summary of Significant Accounting Policies
Estimated useful life of property and equipment		10 years
Maximum | Buildings
Summary of Significant Accounting Policies
Estimated useful life of property and equipment		40 years