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Stock-Based Compensation (Schedule of Assumptions Used to Value Options Granted to Consultants) (Details)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Share-based Goods and Nonemployee Services Transaction [Line Items]    
Risk free interest rate 1.70%us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionValuationMethodRiskFreeInterestRate 1.70%us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionValuationMethodRiskFreeInterestRate
Option Life 8 years 10 months 24 days 5 years 4 months 24 days
Volatility 65.00%us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionValuationMethodExpectedVolatilityRate 62.00%us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionValuationMethodExpectedVolatilityRate