Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Additional Information (Detail)

v2.4.0.8
Stock-Based Compensation - Additional Information (Detail) (USD $)
1 Months Ended 3 Months Ended 9 Months Ended 9 Months Ended 1 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 9 Months Ended 1 Months Ended 9 Months Ended
Jun. 18, 2013
Jun. 30, 2014
Jun. 30, 2014
Sep. 30, 2013
Jun. 30, 2014
Restricted Stock
Mar. 24, 2014
Restricted Stock
Option Vested One
Jun. 30, 2014
Restricted Stock
Option Vested Two
Jun. 30, 2014
Research and Development Expense
Jun. 30, 2014
Research and Development Expense
Jun. 30, 2014
General and Administrative Expense
Jun. 30, 2014
General and Administrative Expense
Jun. 30, 2014
General and Administrative Expense
Restricted Stock
Jun. 30, 2014
General and Administrative Expense
Restricted Stock
Jun. 30, 2014
Maximum
Jun. 30, 2014
Maximum
Jun. 30, 2014
Minimum
Jun. 30, 2014
Minimum
Mar. 24, 2014
Consultants
Restricted Stock
Jun. 30, 2014
Employees
Maximum
Jun. 30, 2014
Employees
Minimum
Oct. 31, 2013
2013 Stock Incentive Plan
Jun. 30, 2014
2013 Stock Incentive Plan
Oct. 02, 2013
2013 Stock Incentive Plan
Jun. 18, 2013
2013 Stock Incentive Plan
Jun. 30, 2014
2013 Stock Incentive Plan
Consultants
Jun. 30, 2014
2013 Stock Incentive Plan
Consultants
Maximum
Jun. 30, 2014
2013 Stock Incentive Plan
Consultants
Minimum
Jun. 30, 2014
2013 Stock Incentive Plan
Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                                        
common stock, shares, issued   72,076,487 72,076,487 60,145,237                           300,000           7,825,388        
Percentage of outstanding number of shares 4.00%                                                      
Share-based compensation arrangement by share-based payment award, options, grants in period, gross     4,869,212                                           2,754,212     2,115,000
Share-based compensation arrangement by share-based payment award, options, outstanding, weighted average remaining contractual term     5 years 5 months 26 days                                             10 years 3 years  
Share-based compensation arrangement by share-based payment award, award vesting period                                                   3 years 1 year  
Share-based compensation arrangements by share-based payment award, options, grants in period, weighted average exercise price     $ 0.36                               $ 0.37 $ 0.19                
Share-based compensation arrangement by share-based payment award, fair value assumptions, expected volatility rate, minimum   86.00% 86.00%                                                  
Share-based compensation arrangement by share-based payment award, fair value assumptions, expected volatility rate, maximum   115.00% 115.00%                                                  
Share-based compensation arrangement by share-based payment award, fair value assumptions, risk free interest rate, minimum   0.91% 0.91%                                                  
Share-based compensation arrangement by share-based payment award, fair value assumptions, risk free interest rate, maximum   2.77% 2.77%                                                  
Share based compensation arrangement by share based payment award fair value assumptions expected forfeiture rate   0.00% 0.00%                                                  
Share-based compensation arrangement by share-based payment award, fair value assumptions, expected dividend rate   0.00% 0.00%                                                  
Share-based compensation arrangement by share-based payment award, fair value assumptions, expected term                           10 years 10 years 3 years 3 years                      
Share-based compensation arrangement by share-based payment award, number of shares available for grant                                           2,361,985            
Allocated share-based compensation expense   $ 245,245 $ 748,600         $ 112,304 $ 461,312 $ 132,941 $ 287,288 $ 25,875 $ 77,625                              
Employee service share-based compensation, nonvested awards, compensation cost not yet recognized, total         $ 25,875                                 $ 1,368,033            
Employee service share-based compensation, nonvested awards, compensation cost not yet recognized, period for recognition     2 years 22 days   5 months 1 day                                              
Common Stock, Shares Authorized   300,000,000 300,000,000 300,000,000                                     10,231,197          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares     2,546,470   225,000 150,000 75,000                                          
Share-based compensation arrangement by share-based payment award, number of additional shares authorized 3,000,000                                       2,405,809