Note 14 - Income Taxes - Income Tax Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Current:
Federal
State and local	81	60	81
Foreign	65	101	64
Total current provision	146	161	145
Deferred:
Federal		(887)
State and local
Foreign	(352)	(880)	(107)
Total deferred (benefit)	(352)	(1,767)	(107)
Total income tax (benefit) expense	$ (206)	$ (1,606)	$ 38