Securities (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Debt Securities, Available-for-sale					$ 483,893,000
Securities available-for-sale, at fair value, post ASU 2019-04	$ 385,131,000		$ 385,131,000
Reclassification of unrealized gain on securities transferred from available-for-sale to held-to-maturity				$ 2,009,000
Impairment on other investments			0
Securities held-to-maturity, at amortized cost, post ASU 2019-04	282,313,000		282,313,000
Allowance for off balance sheet credit	2,300,000		2,300,000		85,000
Gross gains	0	$ 0	0	0
Realized losses	6,800,000	$ 0	6,800,000	$ 0
Asset Pledged as Collateral [Member] | Secure Public Funds and Securities Sold under Agreements to Repurchase [Member]
Debt Securities, Available-for-sale					$ 304,800,000
Securities available-for-sale, at fair value, post ASU 2019-04	$ 347,900,000		$ 347,900,000