Investment in unconsolidated entities (Narrative) (Details)	9 Months Ended
	Sep. 30, 2014 USD ($)	Sep. 30, 2014 CNY
Investment In Unconsolidated Entities 1	30.00%	30.00%
Investment In Unconsolidated Entities 2		5,044,200
Investment In Unconsolidated Entities 3		9,330,000
Investment In Unconsolidated Entities 4		1,285,800
Investment In Unconsolidated Entities 5	$ 209,000
Investment In Unconsolidated Entities 6	30.00%	30.00%