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Liquidity (Details) - USD ($)
1 Months Ended 6 Months Ended
May 04, 2020
Dec. 11, 2019
May 13, 2020
Dec. 31, 2019
Mar. 31, 2020
Sep. 30, 2019
Liquidity [Line Items]            
Stockholders’ deficit         $ (20,524,682) $ (16,129,361)
Secured notes         7,800,000  
Unsecured debt         3,600,000  
Sale of unused net operating losses and research and development tax credits   $ 3,600,000        
Proceeds from sale of net operating losses and research and development tax credits   $ 3,300,000     3,300,000  
Proceeds from exercise of common stock warrants         $ 1,138,900  
Senior Note Warrants            
Liquidity [Line Items]            
Carrying value of notes exchanged       $ 7,300,000    
Senior Note Warrants | Subsequent Event            
Liquidity [Line Items]            
Carrying value of notes exchanged     $ 831,932      
Common stock issued up on conversion of stockholder notes (in shares)     1,626,456      
Paycheck Protection Program | Subsequent Event            
Liquidity [Line Items]            
Proceeds from loan $ 900,000