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Note 1 - Accounting Policies - Useful Lives of Property and Equipment (Details)
Dec. 31, 2023
Vehicles [Member] | Minimum [Member]  
Property and equipment (Year) 3 years
Vehicles [Member] | Maximum [Member]  
Property and equipment (Year) 5 years
Furniture and Fixtures [Member] | Minimum [Member]  
Property and equipment (Year) 3 years
Furniture and Fixtures [Member] | Maximum [Member]  
Property and equipment (Year) 10 years
Machinery and Equipment [Member] | Minimum [Member]  
Property and equipment (Year) 3 years
Machinery and Equipment [Member] | Maximum [Member]  
Property and equipment (Year) 11 years
Building and Building Improvements [Member] | Minimum [Member]  
Property and equipment (Year) 5 years
Building and Building Improvements [Member] | Maximum [Member]  
Property and equipment (Year) 40 years