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Fair Values of Financial Instruments (Narrative) (Details) - USD ($)	3 Months Ended
	Sep. 30, 2025	Jun. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Transfers between fair value hierarchy	$ 0
Total Loans Receivable	2,828,933,000		$ 3,033,784,000	$ 3,125,647,000			$ 3,322,139,000
Allowance for credit losses	37,803,000	$ 50,658,000	34,789,000	$ 34,693,000	$ 35,243,000	$ 33,608,000	$ 31,914,000	$ 30,205,000	$ 32,373,000
Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	0		0
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	0		0
(Level 3) Significant Unobservable Inputs [Member] | Impaired Loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Loans Receivable	35,700,000		31,200,000
Allowance for credit losses	$ 14,600,000		$ 11,800,000

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