Note 12 - Income Taxes (Details Textual) $ in Millions	Dec. 31, 2024 USD ($)
Operating Loss Carryforwards	$ 53.2
Operating Loss Carryforwards Not Eligible to Offset Future Income	81.1
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	82.4
Operating Loss Carryforwards, Subject to Expiration	$ 30.2