Employee Benefits (Narrative) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) fund	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)
Schedule Of Employee Benefits [Line Items]
Number of investment funds | fund	8
Number of equity funds | fund	6
Number of fixed income funds | fund	2
Employer contribution	$ 0	$ 0
Percentage of internal revenue contribution	25.00%
Percentage of internal revenue service limitations	6.00%
Employer contribution in defined contribution plan	$ 269	286
Accrued expenses and other liabilities	26,968		$ 26,521
Non-interest expense	8,877	9,203
Group Term Replacement Plan
Schedule Of Employee Benefits [Line Items]
Liability related to these postretirement benefits	1,655		1,642
Postemployment benefit expense	13	13
Other Director and Officer Postretirement Benefits
Schedule Of Employee Benefits [Line Items]
Non-interest expense	14	16
Liability related to these postretirement benefits	2,072		2,068
Officers | Executive Plan
Schedule Of Employee Benefits [Line Items]
Accrued expenses and other liabilities	1,980		1,962
Non-interest expense	45	131
Directors' Plan | Directors
Schedule Of Employee Benefits [Line Items]
Accrued expenses and other liabilities	3,483		$ 3,278
Non-interest expense	$ 63	$ 51
Minimum | Other Director and Officer Postretirement Benefits
Schedule Of Employee Benefits [Line Items]
Post retirement benefit period	15 years
Minimum | Officers | Executive Plan
Schedule Of Employee Benefits [Line Items]
Terms of services	1 year
Maximum | Other Director and Officer Postretirement Benefits
Schedule Of Employee Benefits [Line Items]
Post retirement benefit period	20 years
Maximum | Officers | Executive Plan
Schedule Of Employee Benefits [Line Items]
Terms of services	5 years