The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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INTANGIBLE ASSETS, NET (Details)	12 Months Ended
INTANGIBLE ASSETS, NET (Details)	Dec. 31, 2017 CNY (¥)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 CNY (¥)	Dec. 31, 2015 CNY (¥)	Dec. 31, 2017 USD ($)
Finite-Lived Intangible Assets [Line Items]
Less: accumulated amortization	¥ (11,210,959)		¥ (7,738,986)
Intangible assets, net	25,742,411		20,296,727		$ 3,956,536
Amortization of intangible assets	3,481,991	$ 535,172	3,202,787	¥ 2,223,458
Trademark [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	3,260,160		3,071,480
Computer software [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	¥ 33,693,210		¥ 24,964,233