Fair Value - Reconciliation of all Assets Measured at Fair Value on Recurring Basis, Using Significant Unobservable Inputs (Level 3) (Details) - Significant Unobservable  Inputs (Level 3) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Obligations of State and Political Subdivisions
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance of Recurring Level 3 Assets	$ 84	$ 94	$ 83	$ 0
Total Gains (Losses) Included in Other Comprehensive Income	(2)	(3)	(1)	(3)
Maturities / Calls	0	0	0	0
Acquired through Bank Acquisition	0	0	0	94
Ending Balance of Recurring Level 3 Assets	82	91	82	91
MBS/CMO
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance of Recurring Level 3 Assets	919	0	906	0
Total Gains (Losses) Included in Other Comprehensive Income	24	0	37	0
Maturities / Calls	0	0	0	0
Acquired through Bank Acquisition	0	0	0	0
Ending Balance of Recurring Level 3 Assets	$ 943	$ 0	$ 943	$ 0