Quarterly report pursuant to Section 13 or 15(d)

Fair Value of Warrants (Detail)

v2.4.1.9
Fair Value of Warrants (Detail)
0 Months Ended
Feb. 06, 2015
Sep. 26, 2014
Class of Stock [Line Items]    
Warrants risk-free interest rate 1.48%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate 1.82%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
Warrants expected life 5 years 5 years
Warrants expected volatility 119.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate 136.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
Warrants expected dividend yield 0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate 0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate