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.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

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Intangible Assets, Net (Details 2)	12 Months Ended
Intangible Assets, Net (Details 2)	Dec. 31, 2014 USD ($)	Dec. 31, 2014 CNY	Dec. 31, 2013 CNY	Dec. 31, 2012 CNY	Dec. 31, 2014 Production license USD ($)	Dec. 31, 2014 Production license CNY	Dec. 31, 2013 Production license CNY	Dec. 31, 2012 Production license CNY
Intangible assets, net
Amortization expense	$ 1,088,199us-gaap_AmortizationOfIntangibleAssets	6,658,690us-gaap_AmortizationOfIntangibleAssets	5,397,193us-gaap_AmortizationOfIntangibleAssets	4,976,783us-gaap_AmortizationOfIntangibleAssets	$ 625,305	3,826,243	3,826,243	3,826,243
Provision for impairment loss charged						0	0	0
Future amortization of intangible assets
2015						3,826,243
2016						1,996,285
Total					$ 951,549	5,822,528	9,648,771