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Loans Receivable and Allowance for Credit Losses (Summary of Recorded investment in Loan Classes Based on Payment Activity) (Details) - USD ($) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2024 | Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total | $ 1,641,531,000 | $ 1,603,877,000
Based on Payment Activity [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans, Current Fiscal Year | 84,666,000 | 178,300,000
Total Loans, Fiscal Year Before Latest Fiscal Year | 168,557,000 | 153,827,000
Total Loans, Two Years Before Latest Fiscal Year | 136,137,000 | 89,184,000
Total Loans, Three Years Before Latest Fiscal Year | 76,050,000 | 51,330,000
Total Loans, Four Years Before Latest Fiscal Year | 44,740,000 | 28,551,000
Total Loans, Prior | 113,337,000 | 98,851,000
Revolving Loans Amortized Cost Basis | 31,930,000 | 32,277,000
Total | 655,417,000 | 632,320,000
Performing [Member] | Based on Payment Activity [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans, Current Fiscal Year | 84,666,000 | 178,189,000
Total Loans, Fiscal Year Before Latest Fiscal Year | 168,179,000 | 153,423,000
Total Loans, Two Years Before Latest Fiscal Year | 135,779,000 | 89,066,000
Total Loans, Three Years Before Latest Fiscal Year | 75,726,000 | 51,299,000
Total Loans, Four Years Before Latest Fiscal Year | 44,709,000 | 28,452,000
Total Loans, Prior | 112,694,000 | 98,517,000
Revolving Loans Amortized Cost Basis | 31,911,000 | 32,227,000
Total | 653,664,000 | 631,173,000
Nonperforming [Member] | Based on Payment Activity [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans, Current Fiscal Year |  | 111,000
Total Loans, Fiscal Year Before Latest Fiscal Year | 378,000 | 404,000
Total Loans, Two Years Before Latest Fiscal Year | 358,000 | 118,000
Total Loans, Three Years Before Latest Fiscal Year | 324,000 | 31,000
Total Loans, Four Years Before Latest Fiscal Year | 31,000 | 99,000
Total Loans, Prior | 643,000 | 334,000
Revolving Loans Amortized Cost Basis | 19,000 | 50,000
Total | 1,753,000 | 1,147,000
Residential Real Estate Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total | 317,507,000 | 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 | 5,508,000 | 27,446,000
Total Loans, Fiscal Year Before Latest Fiscal Year | 33,581,000 | 62,178,000
Total Loans, Two Years Before Latest Fiscal Year | 62,335,000 | 57,691,000
Total Loans, Three Years Before Latest Fiscal Year | 55,491,000 | 35,357,000
Total Loans, Four Years Before Latest Fiscal Year | 33,460,000 | 16,464,000
Total Loans, Prior | 98,302,000 | 88,275,000
Revolving Loans Amortized Cost Basis | 28,830,000 | 29,135,000
Total | 317,507,000 | 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 | 5,508,000 | 27,446,000
Total Loans, Fiscal Year Before Latest Fiscal Year | 33,444,000 | 62,178,000
Total Loans, Two Years Before Latest Fiscal Year | 62,335,000 | 57,691,000
Total Loans, Three Years Before Latest Fiscal Year | 55,302,000 | 35,357,000
Total Loans, Four Years Before Latest Fiscal Year | 33,460,000 | 16,406,000
Total Loans, Prior | 97,694,000 | 87,951,000
Revolving Loans Amortized Cost Basis | 28,811,000 | 29,085,000
Total | 316,554,000 | 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 | 137,000 |
Total Loans, Three Years Before Latest Fiscal Year | 189,000 |
Total Loans, Four Years Before Latest Fiscal Year |  | 58,000
Total Loans, Prior | 608,000 | 324,000
Revolving Loans Amortized Cost Basis | 19,000 | 50,000
Total | 953,000 | 432,000
Construction Real Estate Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total | 48,030,000 | 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 | 11,403,000 | 23,500,000
Total Loans, Fiscal Year Before Latest Fiscal Year | 23,927,000 | 14,906,000
Total Loans, Two Years Before Latest Fiscal Year | 9,813,000 | 6,791,000
Total Loans, Three Years Before Latest Fiscal Year | 459,000 | 1,599,000
Total Loans, Four Years Before Latest Fiscal Year |  | 1,829,000
Total Loans, Prior | 215,000 | 624,000
Revolving Loans Amortized Cost Basis | 2,213,000 | 2,204,000
Total | 48,030,000 | 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 | 11,403,000 | 23,500,000
Total Loans, Fiscal Year Before Latest Fiscal Year | 23,927,000 | 14,906,000
Total Loans, Two Years Before Latest Fiscal Year | 9,813,000 | 6,791,000
Total Loans, Three Years Before Latest Fiscal Year | 459,000 | 1,599,000
Total Loans, Four Years Before Latest Fiscal Year |  | 1,829,000
Total Loans, Prior | 215,000 | 624,000
Revolving Loans Amortized Cost Basis | 2,213,000 | 2,204,000
Total | 48,030,000 | 51,453,000
Consumer Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total | 289,880,000 | 264,321,000
Consumer Loans [Member] | Based on Payment Activity [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans, Current Fiscal Year | 67,755,000 | 127,354,000
Total Loans, Fiscal Year Before Latest Fiscal Year | 111,049,000 | 76,743,000
Total Loans, Two Years Before Latest Fiscal Year | 63,989,000 | 24,702,000
Total Loans, Three Years Before Latest Fiscal Year | 20,100,000 | 14,374,000
Total Loans, Four Years Before Latest Fiscal Year | 11,280,000 | 10,258,000
Total Loans, Prior | 14,820,000 | 9,952,000
Revolving Loans Amortized Cost Basis | 887,000 | 938,000
Total | 289,880,000 | 264,321,000
Current period gross charge-offs, Current Fiscal Year | 38,000 | 45,000
Current period gross charge-offs, Fiscal Year Before Latest Fiscal Year | 216,000 | 710,000
Current period gross charge-offs, Two Years Before Latest Fiscal Year | 479,000 | 200,000
Current period gross charge-offs, Three Years Before Latest Fiscal Year | 113,000 | 35,000
Current period gross charge-offs, Four Years Before Latest Fiscal Year | 58,000 | 45,000
Current period gross charge-offs, Prior | 35,000 | 28,000
Current period gross charge-offs, Revolving loans amortized cost basis |  | 4,000
Current period gross charge-offs, Total | 939,000 | 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 | 67,755,000 | 127,243,000
Total Loans, Fiscal Year Before Latest Fiscal Year | 110,808,000 | 76,339,000
Total Loans, Two Years Before Latest Fiscal Year | 63,631,000 | 24,584,000
Total Loans, Three Years Before Latest Fiscal Year | 19,965,000 | 14,343,000
Total Loans, Four Years Before Latest Fiscal Year | 11,249,000 | 10,217,000
Total Loans, Prior | 14,785,000 | 9,942,000
Revolving Loans Amortized Cost Basis | 887,000 | 938,000
Total | 289,080,000 | 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 |  | 111,000
Total Loans, Fiscal Year Before Latest Fiscal Year | 241,000 | 404,000
Total Loans, Two Years Before Latest Fiscal Year | 358,000 | 118,000
Total Loans, Three Years Before Latest Fiscal Year | 135,000 | 31,000
Total Loans, Four Years Before Latest Fiscal Year | 31,000 | 41,000
Total Loans, Prior | 35,000 | 10,000
Total | $ 800,000 | $ 715,000

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