Note 16 - Income Taxes - Federal and State Income Tax Provisions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current
Federal
State	6	4	3
Total current tax expense	6	4	3
Deferred
Federal
State
Other
Total deferred tax expense
Income tax provision	$ 6	$ 4	$ 3