XML 62 R52.htm IDEA: XBRL DOCUMENT v3.22.2
Note 8 - Stockholders' Equity - Stock Option and Warrant Activity (Details) - $ / shares
 3 Months Ended 9 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Granted, Options (in shares) 48,000 95,500   95,500
Granted, Options, Weighted Average Exercise Price (in dollars per share) $ 1.27      
Share-Based Payment Arrangement, Option [Member]        
Outstanding, Options (in shares)     765,232  
Outstanding, Options, Weighted Average Exercise Price (in dollars per share)     $ 4.66  
Granted, Options (in shares)     535,000  
Granted, Options, Weighted Average Exercise Price (in dollars per share)     $ 1.82  
Exercised, Options (in shares)     (13,333)  
Exercised, Options, Weighted Average Exercise Price (in dollars per share)     $ 1.40  
Forfeited (in shares)     (108,700)  
Forfeited (in dollars per share)     $ 2.38  
Expired, Options (in shares)     (134)  
Expired, Options, Weighted Average Exercise Price (in dollars per share)     $ 937.88  
Outstanding, Options (in shares) 1,178,065   1,178,065  
Outstanding, Options, Weighted Average Exercise Price (in dollars per share) $ 3.60   $ 3.60  
Options vested and exercisable (in shares) 586,765   586,765  
Options vested and exercisable, Weighted Average Exercise Price (in dollars per share) $ 5.33   $ 5.33  
Stock Warrants [Member]        
Outstanding, Warrants (in shares)     1,788,745  
Outstanding, Warrants, Weighted Average Exercise Price (in dollars per share)     $ 4.18  
Exercised, Warrants (in shares)     (26,605)  
Exercised, Warrants, Weighted Average Exercise Price (in dollars per share)     $ 3.88  
Expired, Warrants (in shares)     (4,511)  
Expired, Warrants, Weighted Average Exercise Price (in dollars per share)     $ 218.89  
Outstanding, Warrant (in shares) 1,757,629   1,757,629  
Outstanding, Warrant, Weighted Average Exercise Price (in dollars per share) $ 3.64   $ 3.64