Leased property under capital lease (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Leased property under capital lease [Abstract]
Leased property under capital lease	$ 3,098,921	$ 3,098,921
Less accumulated depreciation	(516,487)	(129,122)
Leased property under capital lease, net	$ 2,582,434	$ 2,969,799

Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 30

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6455314&loc=d3e45014-112735

Name:	us-gaap_CapitalLeasedAssetsGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant