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DERIVATIVE INSTRUMENTS (Details 2)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2012
Fair value of warrants    
Risk-free interest rate (as a percent) 1.47%us-gaap_FairValueAssumptionsRiskFreeInterestRate  
Expected dividend yield (as a percent) 0.00%us-gaap_FairValueAssumptionsExpectedDividendRate 0.00%us-gaap_FairValueAssumptionsExpectedDividendRate
Contractual term 4 years 4 months 24 days  
Expected volatility (as a percent) 119.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate 73.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate
Minimum    
Fair value of warrants    
Risk-free interest rate (as a percent)   0.32%us-gaap_FairValueAssumptionsRiskFreeInterestRate
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Contractual term   2 years 8 months 12 days
Maximum    
Fair value of warrants    
Risk-free interest rate (as a percent)   0.35%us-gaap_FairValueAssumptionsRiskFreeInterestRate
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Contractual term   2 years 10 months 24 days