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Segment Information (Details) - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Net revenues $ 5,171,675 $ 3,312,797
Electric vehicles [Member]    
Net revenues 1,214,086 65,362
Light electric vehicles [Member]    
Net revenues 1,508
Uninterruptable supplies [Member]    
Net revenues $ 3,957,589 $ 3,245,927