Loans Receivable and Allowance for Credit Losses (Summary of Recorded investment in Loan Classes Based on Payment Activity) (Details) - USD ($)	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 1,714,082,000	$ 1,603,877,000
Based on Payment Activity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans, Current Fiscal Year	177,010,000	178,300,000
Total Loans, Fiscal Year Before Latest Fiscal Year	148,288,000	153,827,000
Total Loans, Two Years Before Latest Fiscal Year	121,656,000	89,184,000
Total Loans, Three Years Before Latest Fiscal Year	69,120,000	51,330,000
Total Loans, Four Years Before Latest Fiscal Year	40,503,000	28,551,000
Total Loans, Prior	101,892,000	98,851,000
Revolving Loans Amortized Cost Basis	33,182,000	32,277,000
Total	691,651,000	632,320,000
Performing [Member] \| Based on Payment Activity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans, Current Fiscal Year	176,913,000	178,189,000
Total Loans, Fiscal Year Before Latest Fiscal Year	147,762,000	153,423,000
Total Loans, Two Years Before Latest Fiscal Year	121,227,000	89,066,000
Total Loans, Three Years Before Latest Fiscal Year	68,822,000	51,299,000
Total Loans, Four Years Before Latest Fiscal Year	40,477,000	28,452,000
Total Loans, Prior	101,316,000	98,517,000
Revolving Loans Amortized Cost Basis	33,163,000	32,227,000
Total	689,680,000	631,173,000
Nonperforming [Member] \| Based on Payment Activity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans, Current Fiscal Year	97,000	111,000
Total Loans, Fiscal Year Before Latest Fiscal Year	526,000	404,000
Total Loans, Two Years Before Latest Fiscal Year	429,000	118,000
Total Loans, Three Years Before Latest Fiscal Year	298,000	31,000
Total Loans, Four Years Before Latest Fiscal Year	26,000	99,000
Total Loans, Prior	576,000	334,000
Revolving Loans Amortized Cost Basis	19,000	50,000
Total	1,971,000	1,147,000
Residential Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	330,856,000	316,546,000
Residential Real Estate Loans [Member] \| Based on Payment Activity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans, Current Fiscal Year	22,842,000	27,446,000
Total Loans, Fiscal Year Before Latest Fiscal Year	41,509,000	62,178,000
Total Loans, Two Years Before Latest Fiscal Year	60,246,000	57,691,000
Total Loans, Three Years Before Latest Fiscal Year	52,896,000	35,357,000
Total Loans, Four Years Before Latest Fiscal Year	32,161,000	16,464,000
Total Loans, Prior	90,525,000	88,275,000
Revolving Loans Amortized Cost Basis	30,677,000	29,135,000
Total	330,856,000	316,546,000
Current period gross charge-offs, Prior		34,000
Current period gross charge-offs, Total		34,000
Residential Real Estate Loans [Member] \| Performing [Member] \| Based on Payment Activity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans, Current Fiscal Year	22,842,000	27,446,000
Total Loans, Fiscal Year Before Latest Fiscal Year	41,384,000	62,178,000
Total Loans, Two Years Before Latest Fiscal Year	60,194,000	57,691,000
Total Loans, Three Years Before Latest Fiscal Year	52,712,000	35,357,000
Total Loans, Four Years Before Latest Fiscal Year	32,161,000	16,406,000
Total Loans, Prior	89,965,000	87,951,000
Revolving Loans Amortized Cost Basis	30,658,000	29,085,000
Total	329,916,000	316,114,000
Residential Real Estate Loans [Member] \| Nonperforming [Member] \| Based on Payment Activity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans, Fiscal Year Before Latest Fiscal Year	125,000
Total Loans, Two Years Before Latest Fiscal Year	52,000
Total Loans, Three Years Before Latest Fiscal Year	184,000
Total Loans, Four Years Before Latest Fiscal Year		58,000
Total Loans, Prior	560,000	324,000
Revolving Loans Amortized Cost Basis	19,000	50,000
Total	940,000	432,000
Construction Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	53,020,000	51,453,000
Construction Real Estate Loans [Member] \| Based on Payment Activity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans, Current Fiscal Year	28,817,000	23,500,000
Total Loans, Fiscal Year Before Latest Fiscal Year	12,986,000	14,906,000
Total Loans, Two Years Before Latest Fiscal Year	9,024,000	6,791,000
Total Loans, Three Years Before Latest Fiscal Year	431,000	1,599,000
Total Loans, Four Years Before Latest Fiscal Year		1,829,000
Total Loans, Prior	144,000	624,000
Revolving Loans Amortized Cost Basis	1,618,000	2,204,000
Total	53,020,000	51,453,000
Construction Real Estate Loans [Member] \| Performing [Member] \| Based on Payment Activity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans, Current Fiscal Year	28,817,000	23,500,000
Total Loans, Fiscal Year Before Latest Fiscal Year	12,986,000	14,906,000
Total Loans, Two Years Before Latest Fiscal Year	9,024,000	6,791,000
Total Loans, Three Years Before Latest Fiscal Year	431,000	1,599,000
Total Loans, Four Years Before Latest Fiscal Year		1,829,000
Total Loans, Prior	144,000	624,000
Revolving Loans Amortized Cost Basis	1,618,000	2,204,000
Total	53,020,000	51,453,000
Consumer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	307,775,000	264,321,000
Consumer Loans [Member] \| Based on Payment Activity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans, Current Fiscal Year	125,351,000	127,354,000
Total Loans, Fiscal Year Before Latest Fiscal Year	93,793,000	76,743,000
Total Loans, Two Years Before Latest Fiscal Year	52,386,000	24,702,000
Total Loans, Three Years Before Latest Fiscal Year	15,793,000	14,374,000
Total Loans, Four Years Before Latest Fiscal Year	8,342,000	10,258,000
Total Loans, Prior	11,223,000	9,952,000
Revolving Loans Amortized Cost Basis	887,000	938,000
Total	307,775,000	264,321,000
Current period gross charge-offs, Current Fiscal Year	123,000	45,000
Current period gross charge-offs, Fiscal Year Before Latest Fiscal Year	511,000	710,000
Current period gross charge-offs, Two Years Before Latest Fiscal Year	850,000	200,000
Current period gross charge-offs, Three Years Before Latest Fiscal Year	203,000	35,000
Current period gross charge-offs, Four Years Before Latest Fiscal Year	87,000	45,000
Current period gross charge-offs, Prior	75,000	28,000
Current period gross charge-offs, Revolving loans amortized cost basis		4,000
Current period gross charge-offs, Total	1,849,000	1,067,000
Consumer Loans [Member] \| Performing [Member] \| Based on Payment Activity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans, Current Fiscal Year	125,254,000	127,243,000
Total Loans, Fiscal Year Before Latest Fiscal Year	93,392,000	76,339,000
Total Loans, Two Years Before Latest Fiscal Year	52,009,000	24,584,000
Total Loans, Three Years Before Latest Fiscal Year	15,679,000	14,343,000
Total Loans, Four Years Before Latest Fiscal Year	8,316,000	10,217,000
Total Loans, Prior	11,207,000	9,942,000
Revolving Loans Amortized Cost Basis	887,000	938,000
Total	306,744,000	263,606,000
Consumer Loans [Member] \| Nonperforming [Member] \| Based on Payment Activity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans, Current Fiscal Year	97,000	111,000
Total Loans, Fiscal Year Before Latest Fiscal Year	401,000	404,000
Total Loans, Two Years Before Latest Fiscal Year	377,000	118,000
Total Loans, Three Years Before Latest Fiscal Year	114,000	31,000
Total Loans, Four Years Before Latest Fiscal Year	26,000	41,000
Total Loans, Prior	16,000	10,000
Total	$ 1,031,000	$ 715,000

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