Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Warrants issued and outstanding (Details)

v3.19.3.a.u2
Stockholders' Equity - Warrants issued and outstanding (Details)
12 Months Ended
Dec. 17, 2018
USD ($)
shares
Sep. 30, 2019
USD ($)
EquityInstruments
$ / shares
shares
Sep. 30, 2018
Sep. 30, 2019
$ / shares
shares
Class of Stock [Line Items]        
Warrants Outstanding   728,439   728,439
Warrants [Roll Forward]        
Warrants, Exercised   (103,787)    
Warrants, Redeemed   (76,501)    
Warrants, Outstanding at the end of the period   728,439    
Warrants, Exercisable as of September 30, 2019       728,439
Weighted average exercise price, Redeemed | $ / shares   $ 55.00    
Weighted average exercise price, Outstanding at the end of the period | $ / shares   $ 20.99    
Weighted average exercise price, Exercisable as of September 30, 2019 | $ / shares       $ 20.99
Weighted average remaining contractual term, Outstanding at the beginning of the period   2 years 5 months 23 days 0 years  
Weighted average remaining contractual term, Redeemed   2 years 5 months 5 days    
Weighted average remaining contractual term, Outstanding at the end of the period   2 years 5 months 23 days 0 years  
Weighted average remaining contractual term, Exercisable as of September 30, 2019   2 years 5 months 23 days    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number       6,875
Class of Warrant or Right, Right to Receive, Shares   103,787    
CMU        
Warrants [Roll Forward]        
Assumed, Issued in connection with acquisition   103,787    
Ohr        
Warrants [Roll Forward]        
Assumed, Issued in connection with acquisition   804,940    
Weighted average exercise price, Issued in connection with license acquired | $ / shares   $ 24.22    
Weighted average remaining contractual term, Issued in connection with license acquired   2 years 8 months 1 day    
Number of Warrants Recorded as Derivative Liability | EquityInstruments   792,440    
Number of Warrants Recorded as Equity | EquityInstruments   12,500    
Warrants Acquired, Redeemed in Cash | $   $ 142,000    
License Agreement with Carnegie Mellon University        
Warrants [Roll Forward]        
Stock Issued During Period, Shares, Purchase of Assets 835,625 820,000    
Fully-diluted common stock held (in percent) 8.20%      
Funding Amount | $ $ 2,000,000      
License Agreement with Carnegie Mellon University | CMU        
Class of Stock [Line Items]        
Exercise Price | $ / shares       $ 10.00
Warrants [Roll Forward]        
Stock Issued During Period, Shares, Purchase of Assets   820,000    
Fully-diluted common stock held (in percent)       8.20%
Funding Amount | $   $ 2,000,000    
Number of Days to Consider Qualified Sale   30 years    
Class of Warrant or Right, Exercisable   101,847    
December 13, 2021        
Class of Stock [Line Items]        
Exercise Price | $ / shares       $ 55.00
Warrants Outstanding   20,627   20,627
Warrants [Roll Forward]        
Warrants, Outstanding at the end of the period   20,627    
April 10, 2022        
Class of Stock [Line Items]        
Exercise Price | $ / shares       $ 20.00
Warrants Outstanding   695,312   695,312
Warrants [Roll Forward]        
Warrants, Outstanding at the end of the period   695,312    
October 31, 2019        
Class of Stock [Line Items]        
Exercise Price | $ / shares       $ 20.00
Warrants Outstanding   12,500   12,500
Warrants [Roll Forward]        
Warrants, Outstanding at the end of the period   12,500