General form of registration statement for all companies including face-amount certificate companies

Derivative liability for Monte Carlo Simulations - 2015 Private Placement Financing (Detail)

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Derivative liability for Monte Carlo Simulations - 2015 Private Placement Financing (Detail) - $ / shares
1 Months Ended 9 Months Ended 12 Months Ended
Feb. 04, 2014
Jun. 30, 2015
Sep. 30, 2014
Sep. 30, 2013
Private Placement [Line Items]        
Closing price per share of Common Stock   $ 0.001 $ 0.001 $ 0.001
Derivative Liabilities Assumptions        
Private Placement [Line Items]        
Closing price per share of Common Stock $ 0.30   $ 0.18  
Dividend yield 0.00%   0.00%  
2015 Private Placement Financing | Derivative Liabilities Assumptions        
Private Placement [Line Items]        
Closing price per share of Common Stock   0.26    
Exercise price per share   $ 0.25    
Expected volatility   85.00%    
Risk-free interest rate   1.63%    
Dividend yield   0.00%    
Remaining expected term of underlying securities (years)   5 years