Note 11 - Income Taxes - Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Current	$ (107)	$ (84)
Deferred	(4,534)	(4,171)
Current	312	347
Withholding	2,385	2,165
Deferred	2
Total income tax benefit	$ (1,942)	$ (1,743)