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9. Fair Value of Warrants (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Expected dividend yield 0.00%us-gaap_FairValueAssumptionsExpectedDividendRate
Exercise price $ 0.01us-gaap_FairValueAssumptionsExercisePrice
Company stock price $ 5.79us-gaap_SharePrice
Minimum  
Risk-free interest rate 0.89%us-gaap_FairValueAssumptionsRiskFreeInterestRate
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Expected volatility 77.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Expected Life (years) 2 years 6 months
Maximum  
Risk-free interest rate 1.10%us-gaap_FairValueAssumptionsRiskFreeInterestRate
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Expected volatility 77.78%us-gaap_FairValueAssumptionsExpectedVolatilityRate
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Expected Life (years) 3 years