Note 7 - Fair Value Measurements (Details Textual)	Mar. 31, 2026 USD ($)	Dec. 31, 2025
Call Option [Member]
Ending written-call derivative liability	$ 21,000
Embedded Conversion Features [Member] \| Measurement Input, Share Price [Member]
Derivative Liability, Measurement Input	6.33
Embedded Conversion Features [Member] \| Measurement Input, Price Volatility [Member]
Derivative Liability, Measurement Input	1.10
Embedded Conversion Features [Member] \| Measurement Input, Risk Free Interest Rate [Member]
Derivative Liability, Measurement Input	0.0425
Embedded Conversion Features [Member] \| Measurement Input, Expected Term [Member]
Derivative Liability, Measurement Input	0.85
Bitcoin [Member]
Crypto Asset, Spot Price	$ 68,233
Crypto Asset, Number of Units	69.01	0
Bitcoin [Member] \| Call Option [Member]
Crypto Asset, Spot Price	$ 68,233
Crypto Asset, Number of Units	0.31053491

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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