Schedule of Segment Reporting Information, by Segment [Table Text Block] | The CODM evaluates performance based on each reporting segment’s net sales, cost of sales, gross profit and total assets. Net sales, cost of sales, gross profit and total assets by segments is set out as follows: | | For the years ended December 31, | | | | 2016 | | 2015 | | | | $ | | $ | | Net sales | | | | | | | | Lithium Batteries | | | 112,128,757 | | | 78,624,405 | | Ni-MH Batteries | | | 57,211,657 | | | 64,566,252 | | New Materials | | | 4,510,699 | | | 2,990,354 | | Total | | | 173,851,113 | | | 146,181,011 | | | | | | | | | | Cost of Sales | | | | | | | | Lithium Batteries | | | 87,721,456 | | | 63,644,284 | | Ni-MH Batteries | | | 43,163,019 | | | 50,842,135 | | New Materials | | | 4,884,167 | | | 3,748,516 | | Total | | | 135,768,642 | | | 118,234,935 | | | | | | | | | | Gross Profit | | | | | | | | Lithium Batteries | | | 24,407,301 | | | 14,980,121 | | Ni-MH Batteries | | | 14,048,638 | | | 13,724,117 | | New Materials | | | (373,468) | | | (758,162) | | Total | | | 38,082,471 | | | 27,946,076 | | | | December 31, | | December 31, | | | | 2016 | | 2015 | | | | $ | | $ | | Total Assets | | | | | | | | Lithium Batteries | | | 115,116,508 | | | 82,006,317 | | Ni-MH Batteries | | | 37,994,369 | | | 41,590,201 | | New Materials | | | 10,220,873 | | | 10,607,966 | | Total | | | 163,331,750 | | | 134,204,484 | | |
Revenue from External Customers by Geographic Areas [Table Text Block] | All long-lived assets of the Company are located in the PRC. Geographic information about the sales and accounts receivable based on the location of the Company’s customers is set out as follows: | | For the years ended December 31, | | | | 2016 | | 2015 | | | | $ | | $ | | Net sales | | | | | | | | China mainland | | | 101,459,371 | | | 68,201,408 | | Asia, others | | | 43,764,963 | | | 43,547,384 | | Europe | | | 17,958,060 | | | 26,101,398 | | North America | | | 9,371,838 | | | 7,450,898 | | South America | | | 759,472 | | | 499,669 | | Africa | | | 284,692 | | | 190,489 | | Others | | | 252,717 | | | 189,765 | | | | | 173,851,113 | | | 146,181,011 | | | | December 31, | | December 31, | | | | 2016 | | 2015 | | | | $ | | $ | | Accounts receivable | | | | | | | | China mainland | | | 29,663,633 | | | 23,832,388 | | Asia, others | | | 10,441,358 | | | 6,443,781 | | Europe | | | 3,875,979 | | | 5,324,389 | | North America | | | 2,260,840 | | | 433,458 | | South America | | | 26,610 | | | - | | Africa | | | 378 | | | 55,240 | | Others | | | 11,971 | | | 50,610 | | | | | 46,280,769 | | | 36,139,866 | | |