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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

Proceeds on disposal of patented proprietary technology offset against amount due to a former subsidiary

+ References

No definition available.

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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

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