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Summary of Significant Accounting Policies (Summarized Operations of VIEs) (Details) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Variable Interest Entity [Line Items]      
Net revenue $ 8,583,642us-gaap_SalesRevenueServicesNet $ 13,141,905us-gaap_SalesRevenueServicesNet $ 14,114,803us-gaap_SalesRevenueServicesNet
Net profit (loss) (10,727,642)us-gaap_NetIncomeLoss (34,427,734)us-gaap_NetIncomeLoss (9,491,138)us-gaap_NetIncomeLoss
Consolidated VIEs [Member]      
Variable Interest Entity [Line Items]      
Net revenue 8,850,824us-gaap_SalesRevenueServicesNet
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember		 14,483,007us-gaap_SalesRevenueServicesNet
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember		 13,956,477us-gaap_SalesRevenueServicesNet
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
Net profit (loss) $ (910,807)us-gaap_NetIncomeLoss
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember		 $ 4,746,859us-gaap_NetIncomeLoss
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember		 $ (1,331,497)us-gaap_NetIncomeLoss
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember