Note 2 - Summary of Significant Accounting Policies - Schedule of Changes in Deferred Financing Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Balance	$ 1,301	$ 1,680	$ 1,736
Deferred financing costs capitalized on new debt	334		1,409
Write-off of unamortized deferred financing costs			(972)
Amortization of deferred financing costs	(475)	(379)	(493)
Balance	$ 1,160	$ 1,301	$ 1,680