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Payables to Former Subsidiaries (Narrative) (Details) ¥ in Millions | 9 Months Ended
--- | ---
Sep. 30, 2018 USD ($) | Sep. 30, 2018 CNY (¥) | Sep. 30, 2017 USD ($)
Proceeds on disposal of patented proprietary technology offset against amount due to a former subsidiary | $ 13,034,583 |  | $ 0
Gain on disposal of patented proprietary technology | 12,296,776 |  | $ 0
Shenzhen BAK [Member] |  |  |
Proceeds on disposal of patented proprietary technology offset against amount due to a former subsidiary | 13,034,583 | ¥ 85.1 |
Gain on disposal of patented proprietary technology | $ 12,296,776 |  |

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- Definition Amount of gain (loss) on sale or disposal of intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7,9) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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