General form of registration statement for all companies including face-amount certificate companies

Note 5 - Stock-based Compensation (Details Textual)

v3.22.2.2
Note 5 - Stock-based Compensation (Details Textual) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Oct. 01, 2021
Jun. 18, 2013
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Sep. 30, 2021
Sep. 30, 2020
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)         675,000   7,375,000  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period (in shares)         0 0    
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total     $ 230,633   $ 230,633      
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)         1 year 9 months 14 days      
Restricted Stock [Member]                
Share-Based Payment Arrangement, Expense     $ 10,000 $ 0 $ 30,000 $ 104,000    
Research and Development Expense [Member]                
Share-Based Payment Arrangement, Expense             $ 124,000 $ 288,000
General and Administrative Expense [Member]                
Share-Based Payment Arrangement, Expense             $ 267,000 $ 390,000
Employees and Directors [Member]                
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)             24,479,212  
Consultants [Member]                
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)             9,792,500  
The 2013 Plan [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares) 34,114,256 31,114,256            
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized (in shares) 3,000,000 3,000,000            
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)             0 0
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)     5,508,158   5,508,158   99,340  
Share-Based Payment Arrangement, Expense     $ 81,000 94,000 $ 367,000 269,000    
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total             $ 153,000  
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)             2 years 5 months 19 days  
The 2013 Plan [Member] | Research and Development Expense [Member]                
Share-Based Payment Arrangement, Expense     29,000 35,000 123,000 89,000    
The 2013 Plan [Member] | General and Administrative Expense [Member]                
Share-Based Payment Arrangement, Expense     $ 52,000 $ 59,000 $ 245,000 $ 180,000    
The 2013 Plan [Member] | Employees and Directors [Member]                
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)         475,000   5,300,000  
The 2013 Plan [Member] | Consultants [Member]                
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)         200,000   2,075,000