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Stock-Based Compensation (Details 2)
3 Months Ended
Mar. 31, 2015
Summary of assumptions used to value stock options granted to employees,directors and consultants  
Annual dividend yield   
Minimum [Member]  
Summary of assumptions used to value stock options granted to employees,directors and consultants  
Expected life (years) 1 year 6 months
Risk-free interest rate 0.47%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Expected volatility 70.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Maximum [Member]  
Summary of assumptions used to value stock options granted to employees,directors and consultants  
Expected life (years) 4 years 2 months 27 days
Risk-free interest rate 1.41%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Expected volatility 72.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
/ us-gaap_RangeAxis
= us-gaap_MaximumMember