Note 12 - Leases - Balance Sheet Information (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
ROU assets	$ 3,281	$ 15
Short-term lease liability	24	15
Long-term lease liability	3,257	0
Other Assets [Member]
ROU assets	3,281	15
Other Liabilities [Member]
Short-term lease liability	24	15
Other Noncurrent Liabilities [Member]
Long-term lease liability	$ 3,257	$ 0