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Note 1 - Business and Significant Accounting Policies - Useful Lives of Property and Equipment (Details)
Dec. 31, 2025
Furniture and Fixtures [Member] | Minimum [Member]  
Estimated useful life (Year) 2 years
Furniture and Fixtures [Member] | Maximum [Member]  
Estimated useful life (Year) 10 years
Office Equipment [Member] | Minimum [Member]  
Estimated useful life (Year) 2 years
Office Equipment [Member] | Maximum [Member]  
Estimated useful life (Year) 5 years
Automobiles [Member] | Minimum [Member]  
Estimated useful life (Year) 3 years
Automobiles [Member] | Maximum [Member]  
Estimated useful life (Year) 5 years
Camera Systems [Member] | Minimum [Member]  
Estimated useful life (Year) 3 years
Camera Systems [Member] | Maximum [Member]  
Estimated useful life (Year) 5 years