Note 14 - Income Taxes (Details Textual) - USD ($) Pure in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Effective Income Tax Rate Reconciliation, Percent			0.00%	0.00%
Deferred Tax Assets, Valuation Allowance	$ 104,131		$ 104,131		$ 95,256
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount			8,875
Effective Income Tax Rate Reconciliation, Excess Tax Deficiencies, Amount	(102)	$ (436)	1,410	$ (803)
Valuation Allowance to Offset Excess Tax Deficiencies [Member]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ 102	$ 436	$ 1,410	$ 803