Fair Value Measurements, Measured on a Recurring and Nonrecurring Basis (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Other Assets [Abstract]
Derivative instruments	$ 14,857	$ 13,687
Liabilities [Abstract]
Derivative instruments	(8,698)	(7,922)
Fair value assets and liabilities measured on non-recurring basis [Abstract]
Collateral-Dependent Loans, estimated selling cost	145	396
Recurring [Member]
Assets [Abstract]
Equity securities	1,658	1,938
Available for sale securities [Abstract]
U.S. Agency securities	57,401	60,771
U.S. Treasury securities	134,113	143,288
Obligations of state and political subdivisions	99,367	101,787
Corporate obligations	12,303	12,403
Mortgage-backed securities in government sponsored entities	101,681	99,352
Loans held for sale	8,346
Other Assets [Abstract]
Derivative instruments	14,857	13,687
Liabilities [Abstract]
Derivative instruments	(8,698)	(7,922)
Recurring [Member] | Level I [Member]
Assets [Abstract]
Equity securities	1,658	1,938
Available for sale securities [Abstract]
U.S. Agency securities	0	0
U.S. Treasury securities	134,113	143,288
Obligations of state and political subdivisions	0	0
Corporate obligations	0	0
Mortgage-backed securities in government sponsored entities	0	0
Loans held for sale	0
Other Assets [Abstract]
Derivative instruments	0	0
Liabilities [Abstract]
Derivative instruments	0	0
Recurring [Member] | Level II [Member]
Assets [Abstract]
Equity securities	0	0
Available for sale securities [Abstract]
U.S. Agency securities	57,401	60,771
U.S. Treasury securities	0	0
Obligations of state and political subdivisions	99,367	101,787
Corporate obligations	12,303	12,403
Mortgage-backed securities in government sponsored entities	101,681	99,352
Loans held for sale	8,346
Other Assets [Abstract]
Derivative instruments	14,291	13,363
Liabilities [Abstract]
Derivative instruments	(8,698)	(7,922)
Recurring [Member] | Level III [Member]
Assets [Abstract]
Equity securities	0	0
Available for sale securities [Abstract]
U.S. Agency securities	0	0
U.S. Treasury securities	0	0
Obligations of state and political subdivisions	0	0
Corporate obligations	0	0
Mortgage-backed securities in government sponsored entities	0	0
Loans held for sale	0
Other Assets [Abstract]
Derivative instruments	566	324
Liabilities [Abstract]
Derivative instruments	0	0
Nonrecurring [Member]
Fair value assets and liabilities measured on non-recurring basis [Abstract]
Collateral-dependent loans	1,668	3,885
Other real estate owned		97
Nonrecurring [Member] | Level I [Member]
Fair value assets and liabilities measured on non-recurring basis [Abstract]
Collateral-dependent loans	0	0
Other real estate owned		0
Nonrecurring [Member] | Level II [Member]
Fair value assets and liabilities measured on non-recurring basis [Abstract]
Collateral-dependent loans	0	0
Other real estate owned		0
Nonrecurring [Member] | Level III [Member]
Fair value assets and liabilities measured on non-recurring basis [Abstract]
Collateral-dependent loans	$ 1,668	3,885
Other real estate owned		$ 97