Income Taxes (Schedule Of Income (Loss) Before Income Taxes) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Operating Loss Carryforwards [Line Items]
Income (loss) before income taxes	$ 762	$ (1,961)
United States IRS [Member]
Operating Loss Carryforwards [Line Items]
Income (loss) before income taxes	585	(1,842)
Singapore Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Income (loss) before income taxes	138	(153)
Indonesia Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Income (loss) before income taxes	21	18
Federal Ministry Of Finance Germany [Member]
Operating Loss Carryforwards [Line Items]
Income (loss) before income taxes	$ 18	$ 16