Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	$ 33,087
Net current-period other comprehensive income (loss)	(2,541)	$ (1,294)
Balance	17,997
Foreign Currency Items [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(986)
Net current-period other comprehensive income (loss)	(2,592)
Balance	(3,578)
Unrealized Gain (Losses) On Available-For-Sale Investments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(18)
Net current-period other comprehensive income (loss)	2
Balance	(16)
Accrued Pension Service Costs [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(1,669)
Net current-period other comprehensive income (loss)	52
Balance	(1,617)
Accumulated Other Comprehensive Income/(Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(2,673)
Net current-period other comprehensive income (loss)	(2,538)	$ (1,293)
Balance	$ (5,211)