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Segment Information (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Net revenues $ 8,089,804 $ 5,589,371 $ 17,532,415 $ 14,952,470
Electric vehicles [Member]        
Net revenues 2,885,305 2,280,763 4,425,875 4,099,646
Light electric vehicles [Member]        
Net revenues 44,195 64,315
Uninterruptable supplies [Member]        
Net revenues $ 2,885,305 $ 3,264,413 $ 13,106,540 $ 10,788,509