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FHLB Advances, Other Borrowings and Junior Subordinated Notes Payable (Composition of Borrowed Funds) (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Composition of Borrowed Funds
Borrowed funds	$ 363,891,000	$ 456,808,000
Borrowed funds, average balance	$ 404,264,000	$ 460,438,000
Borrowed funds, interest rate during period	2.75%	2.12%
Federal funds purchased
Composition of Borrowed Funds
Borrowed funds	$ 0	$ 0
Borrowed funds, average balance	$ 4,000	$ 14,000
Borrowed funds, interest rate during period	5.35%	7.42%
FHLB advances
Composition of Borrowed Funds
Borrowed funds	$ 314,500,000	$ 416,380,000
Borrowed funds, average balance	$ 368,913,000	$ 414,191,000
Borrowed funds, interest rate during period	2.54%	1.70%
Line of Credit
Composition of Borrowed Funds
Borrowed funds	$ 0	$ 0
Borrowed funds, average balance	$ 50,000	$ 85,000
Borrowed funds, interest rate during period	7.24%	2.78%
Other borrowings
Composition of Borrowed Funds
Borrowed funds	$ 0	$ 6,088,000
Borrowed funds, average balance	$ 802,000	$ 8,624,000
Borrowed funds, interest rate during period	8.31%	5.23%
Subordinated notes and debentures
Composition of Borrowed Funds
Borrowed funds	$ 49,391,000	$ 34,340,000
Borrowed funds, average balance	$ 34,495,000	$ 35,095,000
Borrowed funds, interest rate during period	4.84%	5.06%
Junior subordinated notes(1)
Composition of Borrowed Funds
Borrowed funds	$ 0	$ 0
Borrowed funds, average balance	$ 0	$ 2,429,000
Borrowed funds, interest rate during period	0.00%	20.75%

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