FAIR VALUE MEASUREMENTS (Schedule of Changes in Fair Value of Warrant Liability) (Details) - CNY (¥)	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Derivative [Line Items]
Balance	¥ 7,277,406
Change in fair value of call spread	(46,215,053)	¥ 48,295,200	¥ (87,403,805)
Balance		7,277,406
Call spread options [Member]
Derivative [Line Items]
Balance	7,277,406
Purchase of call spread option	4,761,603	7,647,843
Change in fair value of call spread		(370,437)
Exercise of call spread options	(12,039,009)
Balance		¥ 7,277,406

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
-Section 50
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-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226008-175313

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