Note 10 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended
Jun. 30, 2025	Dec. 31, 2024	Jun. 30, 2024
Income Tax Expense (Benefit)	$ 0	$ 0	$ 0
Effective Income Tax Rate Reconciliation, Percent	0.00%		0.00%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%
Unrecognized Tax Benefits	$ 0		$ 0

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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+ Details