Summary of Significant Accounting Policies (Details Textual)	9 Months Ended
	Sep. 30, 2013
Equity Method Investment, Ownership Percentage	20.00%
Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage	20.00%
Variable Interest Entity, Primary Beneficiary [Member] | Minimum [Member]
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage	20.00%
Variable Interest Entity, Primary Beneficiary [Member] | Maximum [Member]
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage	20.00%