Leases - Quantitative Lease Data (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Finance Lease Amounts:
Right-of-Use Assets	$ 4,460	$ 4,637	$ 4,460	$ 4,637
Lease Liabilities	5,066	5,119	5,066	5,119
Operating Lease Amounts:
Right-of-Use Assets	4,948	5,627	4,948	5,627
Lease Liabilities	$ 5,152	$ 5,822	$ 5,152	$ 5,822
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Premises and Equipment, Net	Premises and Equipment, Net	Premises and Equipment, Net	Premises and Equipment, Net
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other Assets	Other Assets	Other Assets	Other Assets
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Other Liabilities	Other Liabilities	Other Liabilities	Other Liabilities
Cash Paid For Amounts Included In The Measurement Of Lease Liabilities:
Operating Outgoing Cash Flows From Finance Leases			$ 191	$ 193
Operating Outgoing Cash Flows From Operating Leases			817	1,301
Financing Outgoing Cash Flows From Finance Leases			53	50	$ 48
Right-of-Use Assets Obtained In Exchange For New Finance Lease Liabilities			0	0
Right-of-Use Assets Obtained In Exchange For New Operating Lease Liabilities			$ 146	$ 0
Weighted-average Remaining Lease Term - Finance Leases (Yrs.)	26 years 3 months 10 days	27 years 2 months 26 days	26 years 3 months 10 days	27 years 2 months 26 days
Weighted-average Remaining Lease Term - Operating Leases (Yrs.)	11 years 1 month 24 days	11 years 1 month 20 days	11 years 1 month 24 days	11 years 1 month 20 days
Weighted-average Discount Rate—Finance Leases	3.75%	3.75%	3.75%	3.75%
Weighted-average Discount Rate—Operating Leases	3.08%	2.92%	3.08%	2.92%
Finance Lease Cost:
Reduction in the Carrying Amount of Right-of-Use Assets	$ 44	$ 44	$ 176	$ 177
Interest on Lease Liabilities	48	48	191	193	$ 195
Operating Lease Cost	195	304	981	1,229
Short-term Lease Cost	15	15	61	47
Variable Lease Cost	52	81	231	334
Total Lease Cost	$ 354	$ 492	$ 1,640	$ 1,980