Retirement Plans - Reconciliation of Changes in Plan's Projected Benefit Obligations and Assets (Details) - Pension Plans, Defined Benefit [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Change in benefit obligation:
Projected benefit obligation at beginning of year	$ 4,783	$ 6,298
Interest cost	233	162	$ 151
Actuarial (gain) loss	84	(1,347)
Benefits paid	(334)	(330)
Projected benefit obligation at end of year	4,766	4,783	6,298
Change in plan assets:
Fair value of plan assets at beginning of year	4,599	5,877
Actual return on plan assets	316	(1,148)
Company contributions	50	200
Benefits paid	(334)	(330)
Fair value of plan assets at end of year	4,631	4,599	$ 5,877
Funded status	$ (135)	$ (184)