Note 2 - Summary of Significant Accounting Policies (Details Textual)	3 Months Ended	6 Months Ended
Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Dec. 31, 2025 USD ($)
OCI, Foreign Currency Transaction and Translation Gain (Loss), Arising During Period, Tax	$ (100,000)	$ 1,600,000	$ (100,000)	$ 1,700,000
Restricted Cash, Current	9,999,000	0	9,999,000	0	$ 0
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(267,000)	$ (1,830,000)	(325,000)	$ (2,106,000)
Streeterville Note [Member]
Embedded Derivative, Fair Value of Embedded Derivative Liability	160,482		160,482
Embedded Derivative, Fair Value of Embedded Derivative Asset	$ 32,814		$ 32,814
Embedded Derivative Asset (Liability) Net, Measurement Input	(127,668)		(127,668)
Streeterville Note [Member] \| Measurement Input, Price Volatility [Member]
Embedded Derivative Liability, Measurement Input	0.91		0.91
Streeterville Note [Member] \| Measurement Input, Discount Rate [Member]
Embedded Derivative Liability, Measurement Input	0.305		0.305

Value of input used to measure net embedded derivative asset (liability).

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Amount of tax expense (benefit), before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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