Retirement Agreements and Other Postretirement Benefit Plan Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Retirement Benefits [Abstract]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Personnel expenses	Personnel expenses
Service cost – benefits earned during the year	$ 0	$ 0
Interest cost on the projected benefit obligation	65	26
Amortization of unrecognized prior service cost	0	0
Amortization of unrecognized (gain) loss	(37)	12
Net periodic benefits cost at end of year	$ 28	$ 38