Quarterly report pursuant to Section 13 or 15(d)

The Company and basis of presentation (Details Textual)

v3.7.0.1
The Company and basis of presentation (Details Textual)
Jun. 30, 2017
Hong Kong Highpower Technology Company Limited [Member]  
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]  
Equity Method Investment, Ownership Percentage 100.00%
Ganzhou Highpower Technology Co., Ltd ("GZ Highpower") [Member]  
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]  
Equity Method Investment, Ownership Percentage 70.00%