Pension Plan - Plan Assets at Fair Value (Details) - Pension Plan - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Plan's assets at fair value by level, within the fair value hierarchy
Total	$ 10,006	$ 9,283	$ 11,591
Estimated Fair Value
Plan's assets at fair value by level, within the fair value hierarchy
Total	9,906	8,912
Level I | Estimated Fair Value
Plan's assets at fair value by level, within the fair value hierarchy
Total	8,705	7,705
Level II | Estimated Fair Value
Plan's assets at fair value by level, within the fair value hierarchy
Total	0	0
Level III | Estimated Fair Value
Plan's assets at fair value by level, within the fair value hierarchy
Total	1,201	1,207
Net Asset Value
Plan's assets at fair value by level, within the fair value hierarchy
Total	100	371
Cash | Estimated Fair Value
Plan's assets at fair value by level, within the fair value hierarchy
Total	500	650
Cash | Level I | Estimated Fair Value
Plan's assets at fair value by level, within the fair value hierarchy
Total	500	650
Cash | Level II | Estimated Fair Value
Plan's assets at fair value by level, within the fair value hierarchy
Total	0	0
Cash | Level III | Estimated Fair Value
Plan's assets at fair value by level, within the fair value hierarchy
Total	0	0
Fixed income | Estimated Fair Value
Plan's assets at fair value by level, within the fair value hierarchy
Total	3,002	2,599
Fixed income | Level I | Estimated Fair Value
Plan's assets at fair value by level, within the fair value hierarchy
Total	3,002	2,599
Fixed income | Level II | Estimated Fair Value
Plan's assets at fair value by level, within the fair value hierarchy
Total	0	0
Fixed income | Level III | Estimated Fair Value
Plan's assets at fair value by level, within the fair value hierarchy
Total	0	0
Alternative investments | Estimated Fair Value
Plan's assets at fair value by level, within the fair value hierarchy
Total	1,201	1,207
Alternative investments | Level I | Estimated Fair Value
Plan's assets at fair value by level, within the fair value hierarchy
Total	0	0
Alternative investments | Level II | Estimated Fair Value
Plan's assets at fair value by level, within the fair value hierarchy
Total	0	0
Alternative investments | Level III | Estimated Fair Value
Plan's assets at fair value by level, within the fair value hierarchy
Total	1,201	1,207
Domestic equities | Estimated Fair Value
Plan's assets at fair value by level, within the fair value hierarchy
Total	3,102	2,414
Domestic equities | Level I | Estimated Fair Value
Plan's assets at fair value by level, within the fair value hierarchy
Total	3,102	2,414
Domestic equities | Level II | Estimated Fair Value
Plan's assets at fair value by level, within the fair value hierarchy
Total	0	0
Domestic equities | Level III | Estimated Fair Value
Plan's assets at fair value by level, within the fair value hierarchy
Total	0	0
Foreign equities | Estimated Fair Value
Plan's assets at fair value by level, within the fair value hierarchy
Total	2,101	2,042
Foreign equities | Level I | Estimated Fair Value
Plan's assets at fair value by level, within the fair value hierarchy
Total	2,101	2,042
Foreign equities | Level II | Estimated Fair Value
Plan's assets at fair value by level, within the fair value hierarchy
Total	0	0
Foreign equities | Level III | Estimated Fair Value
Plan's assets at fair value by level, within the fair value hierarchy
Total	$ 0	$ 0