Effective Income Tax Rate Reconciliation Withholding Rate

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Income Tax Applicable Tax Rates [Line Items]

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Preferential Tax Rates

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Statue of limitations period for underpayment of income taxes due to computational errors made by taxpayer or withholding agent.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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

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Amount of deferred tax liability attributable to taxable temporary differences from investments in unconsolidated subsidiaries and investments in other affiliates which are not controlled nor consolidated.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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INCOME TAXES (Narrative) (Details) - CNY (¥)	12 Months Ended
INCOME TAXES (Narrative) (Details) - CNY (¥)	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2009	May. 22, 2015
Income Tax Applicable Tax Rates [Line Items]
Enterprise income tax rate	25.00%	25.00%	25.00%
Withholding tax rate	10.00%
Statue of limitations period	3 years
Valuation allowance	¥ (264,592,020)	¥ (116,351,465)
Undistributed earnings related to investments in subsidiaries		¥ 23,000,000
Expedia [Member]
Income Tax Applicable Tax Rates [Line Items]
Ownership interest acquired, percentage					82.00%
2016 [Member]
Income Tax Applicable Tax Rates [Line Items]
Operating loss carryforwards	¥ 6,847,027
2017 [Member]
Income Tax Applicable Tax Rates [Line Items]
Operating loss carryforwards	4,442,566
2018 [Member]
Income Tax Applicable Tax Rates [Line Items]
Operating loss carryforwards	1,388,389
2019 [Member]
Income Tax Applicable Tax Rates [Line Items]
Operating loss carryforwards	131,126,039
2020 [Member]
Income Tax Applicable Tax Rates [Line Items]
Operating loss carryforwards	¥ 864,281,306
High New Technology Enterprise [Member]
Income Tax Applicable Tax Rates [Line Items]
Preferential tax rate				15.00%
Extended period [Member]
Income Tax Applicable Tax Rates [Line Items]
Statue of limitations period	5 years
Transferring price issues [Member]
Income Tax Applicable Tax Rates [Line Items]
Statue of limitations period	10 years