Income Taxes, Uncertain Tax Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Federal [Member]
Tax [Roll Forward]
Beginning balance	$ 0	$ 793
Increases	0	0
Decreases	0	(793)
Ending balance	0	0
Interest and Penalties [Roll Forward]
Beginning balance	0	9
Increases	0	3
Decreases	0	(12)
Ending balance	0	0
Foreign [Member]
Uncertain Tax Liabilities, Total [Roll Forward]
Beginning balance	1,702	2,440
Increases	116	129
Decreases	(44)	(867)
Ending balance	1,774	1,702
Foreign [Member] | China [Member]
Tax [Roll Forward]
Beginning balance	220	214
Increases	0	6
Decreases	(17)	0
Ending balance	203	220
Interest and Penalties [Roll Forward]
Beginning balance	428	378
Increases	4	50
Decreases	0	0
Ending balance	432	428
Foreign [Member] | Ukraine [Member]
Tax [Roll Forward]
Beginning balance	0	14
Increases	0	0
Decreases	0	(14)
Ending balance	0	0
Interest and Penalties [Roll Forward]
Beginning balance	0	10
Increases	0	0
Decreases	0	(10)
Ending balance	0	0
Foreign [Member] | South Korea [Member]
Tax [Roll Forward]
Beginning balance	644	682
Increases	0	0
Decreases	(22)	(38)
Ending balance	622	644
Interest and Penalties [Roll Forward]
Beginning balance	335	274
Increases	51	61
Decreases	0	0
Ending balance	386	335
Foreign [Member] | U.K. [Member]
Tax [Roll Forward]
Beginning balance	45	45
Increases	0	0
Decreases	(5)	0
Ending balance	40	45
Interest and Penalties [Roll Forward]
Beginning balance	30	21
Increases	61	9
Decreases	0	0
Ending balance	$ 91	$ 30