Note 16 - Defined Contribution Plan (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Defined Contribution Plan, Employer Matching Contribution, Percent of Match			6.00%
Defined Contribution Plan, Cost	$ 34	$ 12	$ 102	$ 58