TAXATION (Schedule of Movement of Valuation Allowances) (Details) - CNY (¥)	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
At beginning of year	¥ (66,223,501)	¥ (54,792,006)	¥ (67,263,314)
Current year additions	(42,043,420)	(38,362,418)	(20,392,519)
Utilization and reversal of valuation allowances	21,823,558	26,930,923	32,863,827
At end of year	¥ (86,443,363)	¥ (66,223,501)	¥ (54,792,006)

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319

Name:	us-gaap_DeferredTaxAssetsValuationAllowance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant