Note 6 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Effective Income Tax Rate Reconciliation, Percent	0.00%	0.00%	0.00%	68.00%
Deferred Tax Assets, Valuation Allowance, Percent					100.00%
Income Tax Expense (Benefit)	$ (0)	$ (0)	$ 0	$ 486

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

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+ Details