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