Note 10 - Leases - Components of Operating Lease Expense (Details) - General and Administrative Expense [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Long-term Operating	$ 1,557	$ 1,826
Short-term Operating	0	0
Total Operating lease expense	$ 1,557	$ 1,826