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Stockholders' Equity - Reconciliation of Numerator and Denominator for Calculation of Earnings Per Share (Details)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Securities excluded from the weighted outstanding calculation because their inclusion would have been antidilutive:   1,390,380us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Warrant [Member]    
Securities excluded from the weighted outstanding calculation because their inclusion would have been antidilutive: 4,209,906us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
215,880us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
Convertible Debt [Member]    
Securities excluded from the weighted outstanding calculation because their inclusion would have been antidilutive: 1,793,409us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_ConvertibleDebtSecuritiesMember
  
Stock Options [Member]    
Securities excluded from the weighted outstanding calculation because their inclusion would have been antidilutive: 1,223,100us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_StockOptionMember
1,174,500us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_StockOptionMember