Note 5 - Income Taxes - Schedule Of Income (Loss) Before Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income (loss) before income taxes	$ (1,048)	$ (2,245)	$ (286)	$ (4,206)
Internal Revenue Service (IRS) [Member]
Income (loss) before income taxes	(1,162)	(1,994)	(577)	(3,836)
Inland Revenue, Singapore (IRAS) [Member]
Income (loss) before income taxes	77	(278)	215	(431)
Indonesian Tax Authority [Member]
Income (loss) before income taxes	23	17	44	35
Federal Ministry of Finance, Germany [Member]
Income (loss) before income taxes	$ 14	$ 10	$ 32	$ 26

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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+ Details