Note 8 - Income Taxes - Income Tax Provisions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Federal		$ 191	$ (15)
State	22	(14)	529
Foreign - Other	682	578	1,062
Total current	704	755	1,576
Federal	1,325	937	8,168
State	379	(1,161)	242
Foreign - Other	(218)	85	16
Total deferred	1,486	(139)	8,426
Income tax expense (benefit)	$ 2,190	$ 616	$ 10,002