Note 15 - Income Taxes (Details Textual) - USD ($) Pure in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Effective Income Tax Rate Reconciliation, Percent, Total	0.00%	0.00%
Deferred Tax Assets, Valuation Allowance	$ 107,722		$ 104,361
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	3,361
Effective Income Tax Rate Reconciliation, Excess Tax Deficiencies, Amount	131	$ (1,730)
Valuation Allowance to Offset Excess Tax Deficiencies [Member]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ 131	$ (1,730)