Loans Receivable and Allowance for Loan Losses (Summary of Recorded investment in Loan Classes Based on Payment Activity) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 1,611,278	$ 1,474,424
Based on Payment Activity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
2023	143,281
2022	163,190
2021	92,079
2020	54,236
2019	30,786
Prior	103,482
Revolving Loans Amortized Cost Basis	31,218
Total	618,272	531,431
Performing [Member] | Based on Payment Activity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
2023	143,253
2022	162,691
2021	92,012
2020	54,205
2019	30,686
Prior	103,032
Revolving Loans Amortized Cost Basis	31,150
Total	617,029	530,781
Nonperforming [Member] | Based on Payment Activity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
2023	28
2022	499
2021	67
2020	31
2019	100
Prior	450
Revolving Loans Amortized Cost Basis	68
Total	1,243	650
Residential Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	316,139	298,813
Residential Real Estate Loans [Member] | Based on Payment Activity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
2023	21,935
2022	60,944
2021	58,600
2020	36,483
2019	16,893
Prior	91,586
Revolving Loans Amortized Cost Basis	29,698
Total	316,139	298,813
Current period gross charge-offs, Prior	6
Current period gross charge-offs, Total	6
Residential Real Estate Loans [Member] | Performing [Member] | Based on Payment Activity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
2023	21,935
2022	60,944
2021	58,600
2020	36,483
2019	16,836
Prior	91,136
Revolving Loans Amortized Cost Basis	29,630
Total	315,564	298,327
Residential Real Estate Loans [Member] | Nonperforming [Member] | Based on Payment Activity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
2019	57
Prior	450
Revolving Loans Amortized Cost Basis	68
Total	575	486
Construction Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	41,305	32,469
Construction Real Estate Loans [Member] | Based on Payment Activity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
2023	11,877
2022	18,649
2021	6,221
2020	1,612
2019	1,870
Prior	769
Revolving Loans Amortized Cost Basis	307
Total	41,305	32,469
Construction Real Estate Loans [Member] | Performing [Member] | Based on Payment Activity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
2023	11,877
2022	18,649
2021	6,221
2020	1,612
2019	1,870
Prior	769
Revolving Loans Amortized Cost Basis	307
Total	41,305	32,469
Consumer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	260,828	200,149
Consumer Loans [Member] | Based on Payment Activity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
2023	109,469
2022	83,597
2021	27,258
2020	16,141
2019	12,023
Prior	11,127
Revolving Loans Amortized Cost Basis	1,213
Total	260,828	200,149
Current period gross charge-offs, 2023	7
Current period gross charge-offs, 2022	462
Current period gross charge-offs, 2021	132
Current period gross charge-offs, 2020	29
Current period gross charge-offs, 2019	37
Current period gross charge-offs, Prior	11
Current period gross charge-offs, Revolving loans amortized cost basis	14
Current period gross charge-offs, Total	692
Consumer Loans [Member] | Performing [Member] | Based on Payment Activity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
2023	109,441
2022	83,098
2021	27,191
2020	16,110
2019	11,980
Prior	11,127
Revolving Loans Amortized Cost Basis	1,213
Total	260,160	199,985
Consumer Loans [Member] | Nonperforming [Member] | Based on Payment Activity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
2023	28
2022	499
2021	67
2020	31
2019	43
Total	$ 668	$ 164