Borrowings, Line of Credit and Subordinated Debt (Narrative) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Securities sold under agreements to repurchase	$ 6,117		$ 4,775
Other borrowings	8,000		12,500
Repayment borrowings	30,500	$ 75,000
Securities sold under agreements to repurchase, average balance	5,000	5,200
Securities sold under agreements to repurchase, maximum month-end balance	6,100	$ 5,900
Securities available-for-sale, at fair value			483,893
Securities available-for-sale, at fair value, post ASU 2019-04	385,131
Borrowings	14,100		41,900
Loan participation agreements	0		24,585
Loan and Security Agreement and Revolving Line of Credit [Member]
Principal amount	35,000
US Government-sponsored Enterprises Debt Securities [Member]
Securities available-for-sale, at fair value			1,575
Securities available-for-sale, at fair value, post ASU 2019-04	60,953
US Government-sponsored Enterprises Debt Securities [Member] | Asset Pledged as Collateral [Member]
Securities available-for-sale, at fair value			$ 9,200
Securities available-for-sale, at fair value, post ASU 2019-04	7,600
Revolving Credit Facility [Member]
Outstanding borrowings	8,000
Remaining borrowing capacity	$ 27,000