v2.4.0.6
Stockholders' Equity - Additional Information (Detail) (USD $)
 1 Months Ended 0 Months Ended 1 Months Ended 3 Months Ended 80 Months Ended 3 Months Ended 3 Months Ended
Mar. 13, 2013
Feb. 19, 2013
Feb. 22, 2013
Jan. 09, 2013
Feb. 28, 2013
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2013
Dec. 31, 2012
Mar. 20, 2013
2013 Stock Incentive Plan
Mar. 31, 2013
2013 Stock Incentive Plan
Directors and officers
Mar. 31, 2013
2013 Stock Incentive Plan
Consultant
Mar. 31, 2013
2006 Stock Incentive Plan
Chief Medical Officer
Mar. 31, 2012
2006 Stock Incentive Plan
Director
Mar. 31, 2012
2006 Stock Incentive Plan
Chief Operating Officer/Chief Financial Officer
Feb. 22, 2013
Series A non voing preferred stock
Feb. 19, 2013
Series A non voing preferred stock
Feb. 19, 2013
Warants to insitutional investors
Stockholders Equity Note [Line Items]                                    
Registation statement filed with securities exchange commission for resale of shares number of days from final closing       60 days                            
Registation statement filed with secuities exchange commission for resale of shares number of days targeted for declaration       120 days                            
Aggregate liquidated damages amount $ 551                                  
Preferred stock, shares issued           287,324   287,324 0               761,429  
Class of warrant or right, number of securities called by warrants or rights                                   400,000
Proceeds from issuance of convertible preferred stock and warrants   533,000                                
Class of warrants or rights and convertible preferred stock exercise price   $ 0.70                                
Exercise of warrants and conversion of preferred stock percentage of ownership after transaction   3.99%                                
Preferred stock, liquidation preference per share   $ 0.001                                
Class of warrant or right, exercise price of warrants or rights   1.50                                
Class of warrant or right term   5 years                                
Exceise of warrants or rights terms, percentage of ownership afer transaction, maximum   3.99%                                
Stock issued during period, shares, conversion of convertible securities     474,105                              
Convertible preferred stock, shares issued upon conversion                               474,105    
Deemed Dividend           180,502                        
Share based compensation arrangement by share based payment award options vesting immediately             45,000                      
Share-based compensation arrangement by share-based payment award, options, outstanding, weighted average remaining contractual term           8 years 3 months 18 days                        
Common stock, capital shares reserved for future issuance                   5,000,000                
Share-based compensation arrangement by share-based payment award, options, grants in period, gross                     310,000 120,000   150,000        
Share based compensation arrangement by share based payment award, award vesting period 1                     2 years 3 years            
Opions vesting schedule amendment percentage vesting on issuance of certification           50.00%                        
Share-based compensation arrangements by share-based payment award, options, grants in period, weighted average exercise price                     $ 0.90 $ 0.90   $ 0.29 $ 0.49      
Share based compensation arrangement by share based payment award, options vest upon as specified milestones                     710,000 260,000            
Share based compensation arrangement by share based payment award, un vested stock options, grants in period gross                             180,000      
Allocated share-based compensation expense           70,764 96,662 2,581,315                    
Previously recognized allocated share based compensation expense, related to stock options forfeited           88,687                        
Share-based compensation arrangement by share-based payment award unvested stock options forfeited                         237,333          
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 forfeiture rate           39.00% 40.00%                      
Share-based compensation, shares authorized under stock option plans, exercise price range, exercisable options, weighted average remaining contractual term           5 years                        
Share-based compensation arrangement by share-based payment award, options, vested and expected to vest, outstanding, aggregate intrinsic value           316,700   316,700                    
Stock repurchased during period, shares         220,000                          
Purchase price of common stock, shares under lying the warrant         $ 0.15                          
Number of securities called by warrants or rights repurchased, exercise price         $ 3.4375                          
Employee service share-based compensation, nonvested awards, total compensation cost not yet recognized           $ 1,562,392   $ 1,562,392                    
Unrecognized stock compensation expense, expected weighted average period of recognition (in years)           10 months 24 days