XML 15 R25.htm IDEA: XBRL DOCUMENT v2.4.1.9
Fair Value Measurements (Details) (USD $)
3 Months Ended 12 Months Ended
Mar. 31, 2015
Dec. 31, 2014
Liabilities:    
Liability $ 396,892us-gaap_DerivativeLiabilitiesCurrent $ 296,048us-gaap_DerivativeLiabilitiesCurrent
Recurring | Level 3 | Warrants | Liabilities | Option pricing model    
Significant assumptions used in preparing the option pricing model for valuing the Company's warrants    
Volatility (as a percent) 75.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate
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104.80%us-gaap_FairValueAssumptionsExpectedVolatilityRate
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Risk free interest rate (as a percent) 1.41%us-gaap_FairValueAssumptionsRiskFreeInterestRate
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1.68%us-gaap_FairValueAssumptionsRiskFreeInterestRate
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Life of treasury bonds 4 years 9 months 5 years
Strike price (in dollars per share) $ 6.00us-gaap_FairValueAssumptionsExercisePrice
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$ 6.00us-gaap_FairValueAssumptionsExercisePrice
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Fair value of stock (in dollars per share) $ 9.27us-gaap_SharePrice
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$ 6.14us-gaap_SharePrice
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Expected life 4 years 9 months 5 years
Recurring | Measured at fair value | Level 1    
Assets:    
Cash and cash equivalents 53,807,863us-gaap_CashAndCashEquivalentsFairValueDisclosure
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40,135,102us-gaap_CashAndCashEquivalentsFairValueDisclosure
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Total assets at fair value 53,807,863us-gaap_AssetsFairValueDisclosure
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40,135,102us-gaap_AssetsFairValueDisclosure
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Recurring | Measured at fair value | Level 3    
Liabilities:    
Total liabilities at fair value 396,892us-gaap_LiabilitiesFairValueDisclosure
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296,048us-gaap_LiabilitiesFairValueDisclosure
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Recurring | Measured at fair value | Level 3 | Warrants    
Liabilities:    
Liability $ 396,892us-gaap_DerivativeLiabilitiesCurrent
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$ 296,048us-gaap_DerivativeLiabilitiesCurrent
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