Annual report pursuant to Section 13 and 15(d)

Non-controlling interest (Details Textual)

v3.7.0.1
Non-controlling interest (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Subsidiary or Equity Method Investee [Line Items]    
Stockholders' Equity Attributable to Noncontrolling Interest $ 329,343 $ 853,483
Net Income (Loss) Attributable to Noncontrolling Interest (490,150) (393,812)
Ganzhou Highpower Technology Company Limited [Member]    
Subsidiary or Equity Method Investee [Line Items]    
Stockholders' Equity Attributable to Noncontrolling Interest 329,343 853,483
Net Income (Loss) Attributable to Noncontrolling Interest $ 490,150 $ 393,812
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners 30.00% 30.00%