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Note 2 - Summary of Significant Accounting Policies - Property Plant and Equipment Useful Life (Details)
Mar. 31, 2024
Machinery and Equipment [Member] | Minimum [Member]  
Property, plant and equipment, useful life (Year) 3 years
Machinery and Equipment [Member] | Maximum [Member]  
Property, plant and equipment, useful life (Year) 10 years
Furniture and Fixtures [Member] | Minimum [Member]  
Property, plant and equipment, useful life (Year) 3 years
Furniture and Fixtures [Member] | Maximum [Member]  
Property, plant and equipment, useful life (Year) 5 years