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Note 6 - Property, Plant and Equipment, Net - Schedule of Property, Plant, and Equipment (Details) - USD ($)
Jun. 30, 2019
Dec. 31, 2018
Property Plant and Equipment, Gross $ 15,724,888 $ 15,310,248
Less: accumulated depreciation 2,782,721 2,006,133
Property plant & equipment, net 12,942,167 13,304,115
Land [Member]    
Property Plant and Equipment, Gross 228,872 257,205
Building and Building Improvements [Member]    
Property Plant and Equipment, Gross 1,750,946 1,709,165
Machinery and Equipment [Member]    
Property Plant and Equipment, Gross $ 13,745,070 $ 13,343,878