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Note 2 - Summary of Significant Accounting Policies - Estimated Useful Lives (Details)
Dec. 31, 2024
Equipment [Member] | Minimum [Member]  
Useful lives (Year) 3 years
Equipment [Member] | Maximum [Member]  
Useful lives (Year) 5 years
Furniture and Fixtures [Member] | Minimum [Member]  
Useful lives (Year) 3 years
Furniture and Fixtures [Member] | Maximum [Member]  
Useful lives (Year) 5 years