Borrowed Funds, Subordinated Debentures and Derivatives - Schedule of Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Long-term Debt	$ 230,814
Non-overnight, fixed rate advances
Debt Instrument [Line Items]
Borrowed funds at December 31	$ 20,504	$ 109,438
Rate at December 31	4.36%	3.86%
Long-term Debt	$ 20,504
Overnight advances
Debt Instrument [Line Items]
Borrowed funds at December 31	$ 140,000	$ 217,000
Rate at December 31	4.67%	5.61%
Long-term Debt	$ 140,000
Puttable advances
Debt Instrument [Line Items]
Borrowed funds at December 31	$ 60,000	$ 30,000
Rate at December 31	3.70%	3.91%
Long-term Debt	$ 60,000
Subordinated debentures:
Debt Instrument [Line Items]
Borrowed funds at December 31	$ 10,310	$ 10,310
Rate at December 31	6.19%	7.21%
Long-term Debt	$ 10,310