Quarterly report pursuant to Section 13 or 15(d)

Issuance and Treatment of the Series D, Series and Series J Warrants - Additional Information (Details)

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Issuance and Treatment of the Series D, Series and Series J Warrants - Additional Information (Details) - USD ($)
9 Months Ended 12 Months Ended
Jun. 30, 2021
Nov. 06, 2020
Jun. 22, 2020
Jun. 04, 2020
Jun. 03, 2020
May 26, 2016
Jun. 30, 2015
Jun. 30, 2021
Jun. 30, 2020
Sep. 30, 2020
Nov. 30, 2020
Jun. 21, 2020
Jun. 02, 2020
Issuance and Treatment of the Series D, Series and Series J Warrants                          
Proceeds from exercise of warrants               $ 0 $ 932,728        
2015 Investors [Member]                          
Issuance and Treatment of the Series D, Series and Series J Warrants                          
Number of shares issued during the period 4,214,582                        
Series E warrant                          
Issuance and Treatment of the Series D, Series and Series J Warrants                          
Payments of Stock Issuance Costs           $ 281,000              
2015 Private Placement [Member]                          
Issuance and Treatment of the Series D, Series and Series J Warrants                          
Number of shares issued during the period             14,390,754            
Share Price             $ 0.22            
Proceeds from Issuance of Common Stock             $ 3,200,000            
2015 Private Placement [Member] | Keyes Sulat Agreement                          
Issuance and Treatment of the Series D, Series and Series J Warrants                          
Common Stock Issuance Upon Exercise Of Warrants     454,546                    
2015 Private Placement [Member] | Series D Warrants [Member]                          
Issuance and Treatment of the Series D, Series and Series J Warrants                          
Class of Warrant or Right, Exercise Price of Warrants or Rights         $ 0.18   $ 0.25           $ 0.25
Proceeds from exercise of warrants         $ 850,000         $ 932,728      
Percentage of increase in ownership interest as a result of reduction in exercise price of warrant         4.90%                
Common Stock Issuance Upon Exercise Of Warrants       4,727,273           5,181,819      
Number of warrants expired                   3,792,570      
2015 Private Placement [Member] | Series J warrant                          
Issuance and Treatment of the Series D, Series and Series J Warrants                          
Class of Warrant or Right, Exercise Price of Warrants or Rights       $ 0.25                  
Common Stock Issuance Upon Exercise Of Warrants   3,375,000   3,545,454                  
Warrants exercisable period   30 months   1 year             1 year    
2015 Private Placement [Member] | Series J warrant | Keyes Sulat Agreement                          
Issuance and Treatment of the Series D, Series and Series J Warrants                          
Class of Warrant or Right, Exercise Price of Warrants or Rights                       $ 0.25  
Proceeds from exercise of warrants     $ 82,000                    
Common Stock Issuance Upon Exercise Of Warrants     340,910                    
Warrants exercisable period     1 year                    
2016 Private Placement [Member]                          
Issuance and Treatment of the Series D, Series and Series J Warrants                          
Number of shares issued during the period           9,418,334              
2016 Private Placement [Member] | Series E warrant                          
Issuance and Treatment of the Series D, Series and Series J Warrants                          
Stock Issued During Period, Value, New Issues           $ 3,400,000              
Share Price           $ 0.36              
Class of Warrant or Right, Exercise Price of Warrants or Rights           $ 0.4380              
Warrants to purchase shares of Common Stock           0.75