v3.26.3
Note 2 - Liquidity, Going Concern and Other Uncertainties (Details Textual) - USD ($)
1 Months Ended 3 Months Ended 12 Months Ended
Aug. 19, 2026
Aug. 12, 2026
Aug. 01, 2026
Jun. 23, 2026
Sep. 14, 2026
Jan. 31, 2026
Jul. 31, 2026
Jul. 31, 2025
Apr. 30, 2026
Aug. 31, 2025
Aug. 03, 2025
Nov. 30, 2023
Nov. 17, 2023
Nov. 09, 2023
Sep. 30, 2023
Retained Earnings (Accumulated Deficit)             $ (88,441,854)   $ (85,269,510)            
Proceeds from Issuance of Common Stock             $ 10,233 $ 0              
Conversion of Streeterville Note into Common Stock [Member]                              
Debt Conversion, Original Debt, Interest       $ 164,000         $ 45,000            
Debt Conversion, Converted Instrument, Shares Issued (in shares)       78,103         597,578            
Streeterville Note Two [Member]                              
Debt Instrument, Face Amount           $ 3,605,000                  
Debt Instrument, Unamortized Discount           600,000                  
Proceeds from Issuance of Debt           3,000,000                  
Streeterville Note Two [Member] | Streeterville [Member]                              
Debt Instrument, Reimbursement Withheld           $ 5,000                  
ATM Offering [Member]                              
Stock Issued During Period, Shares, New Issues (in shares)             4,920                
Proceeds from Issuance of Common Stock             $ 10,000                
Sale of Stock, Value, Authorized                   $ 25,000,000 $ 25,000,000 $ 15,000,000 $ 15,000,000 $ 10,000,000 $ 3,250,000
Sale of Stock, Value, Authorized Under I.B.6                             14,700,000
ATM Offering [Member] | Minimum [Member]                              
Entity Public Float                             $ 75,000,000
Subsequent Event [Member] | Conversion of Streeterville Note into Common Stock [Member]                              
Debt Conversion, Converted Instrument, Shares Issued (in shares) 95,602   95,602                        
Subsequent Event [Member] | Private Placement [Member]                              
Stock Issued During Period, Shares, New Issues (in shares)   411,522                          
Shares Issued, Price Per Share (in dollars per share)   $ 2.43                          
Proceeds from Issuance of Common Stock   $ 1,000,000                          
Subsequent Event [Member] | ATM Offering [Member]                              
Stock Issued During Period, Shares, New Issues (in shares)         397,762                    
Proceeds from Issuance of Common Stock         $ 1,200,000                    
Sale of Stock, Value, Remaining         $ 3,000,000