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Note 5 - Property and Equipment (Details) - Property, Plant and Equipment - USD ($)
Jun. 30, 2019
Dec. 31, 2018
Property, Plant and Equipment [Line Items]    
Accumulated Depreciation $ (37,093) $ (35,917)
Total 98,109 34,446
Tools, Dies and Molds [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and Equipment, gross 132,513 $ 70,363
Office Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and Equipment, gross $ 2,689