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Note 10 - Segment Reporting - Summary of Property and Equipment by Geographic Region (Details) - USD ($)
Sep. 30, 2016
Dec. 31, 2015
CANADA    
Property, plant and equipment $ 974,619 $ 1,225,236
UNITED STATES    
Property, plant and equipment 8,592,697 5,847,666
GERMANY    
Property, plant and equipment 49,831 53,774
Property, plant and equipment $ 9,617,147 $ 7,126,676