Note 7 - Fair Value Measurements - Schedule of Instruments at Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Bitcoin digital assets	$ 4,118	$ 0
Fair Value, Recurring [Member] \| Embedded Conversion Features [Member]
Derivative liability	0
Fair Value, Recurring [Member] \| Call Option [Member]
Derivative liability	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member] \| Embedded Conversion Features [Member]
Derivative liability	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member] \| Call Option [Member]
Derivative liability	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member] \| Embedded Conversion Features [Member]
Derivative liability	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member] \| Call Option [Member]
Derivative liability	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member] \| Embedded Conversion Features [Member]
Derivative liability	1,236
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member] \| Call Option [Member]
Derivative liability	8
Bitcoin [Member] \| Fair Value, Recurring [Member]
Bitcoin digital assets	4,118
Bitcoin [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Bitcoin digital assets	0
Bitcoin [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Bitcoin digital assets	0
Bitcoin [Member] \| Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Bitcoin digital assets	$ 0

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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+ Details