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Note 4 - Plant, Property and Equipment, Net (Details) - Schedule of Property, Plant and Equipment - USD ($)
Sep. 30, 2019
Dec. 31, 2018
Property, Plant and Equipment [Line Items]    
Less: accumulated depreciation $ (319,549) $ (292,001)
Property, plant and equipment, net 145,450 147,096
Office Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 346,141 320,239
Museum Decoration and Renovation [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 118,858 $ 118,858