Note 11 - Income Taxes - Provision for Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Current:
Federal	$ (102)	$ (247)
State	0	0
Total current	(102)	(247)
Deferred:
Federal	0	247
State	0	0
Total deferred	0	247
Income tax (benefit) expense from continuing operations	$ (102)	$ (0)