v3.26.3
Note 6 - Stockholders' Equity (Details Textual) - USD ($)
1 Months Ended 2 Months Ended 12 Months Ended
Apr. 27, 2026
Mar. 25, 2025
Oct. 30, 2024
May 26, 2023
Jul. 31, 2021
Dec. 31, 2024
Jun. 30, 2029
Jun. 30, 2028
Jun. 30, 2027
Jun. 30, 2026
Jun. 30, 2025
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)                   1,500,000  
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)                   10 years  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares) 75,000   200,000             75,000 450,000
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share) $ 0.69   $ 0.65             $ 0.69 $ 0.65
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period (in shares)                   (0) 250,000
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price (in dollars per share)                   $ 0 $ 1.1
Share Based Compensation Arrangement By Share Based Payment Award, Options, Reissued, Weighted Average Exercise Price (in dollars per share)   $ 0.65                  
Share-Based Payment Arrangement, Plan Modification, Incremental Cost                     $ 11,000
Share-Based Payment Arrangement, Expense                   $ 40,000 $ 70,000
Forecast [Member]                      
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested in Period, Fair Value             $ 3,125 $ 41,667 $ 75,000    
Vesting Immediately [Member]                      
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage 25.00%                    
Vesting Annually [Member]                      
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year) 3 years                    
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage 75.00%                    
Chief Financial Officer [Member]                      
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)       100,000              
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)       $ 1.1              
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)                   $ 1.1  
Outside Directors [Member]                      
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)       $ 1.1              
Share-Based Payment Arrangement, Option [Member] | Vesting Immediately [Member]                      
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage     25.00%     25.00%          
Share-Based Payment Arrangement, Option [Member] | Chief Financial Officer [Member] | Vesting Immediately [Member]                      
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage       25.00%              
Share-Based Payment Arrangement, Option [Member] | Chief Financial Officer [Member] | Vesting Annually [Member]                      
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage       25.00%              
Share-Based Payment Arrangement, Nonemployee [Member]                      
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)       150,000 150,000            
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)       $ 1.1 $ 3            
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period (in shares)       150,000              
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price (in dollars per share)       $ 3              
Share-Based Payment Arrangement, Nonemployee [Member] | John Stiska [Member]                      
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)       50,000              
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period (in shares)       50,000              
Share-Based Payment Arrangement, Nonemployee [Member] | Katherine Crothall [Member]                      
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)       50,000              
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period (in shares)       50,000              
Share-Based Payment Arrangement, Nonemployee [Member] | Scott Anderson [Member]                      
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)       50,000              
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period (in shares)       50,000              
Share-Based Payment Arrangement, Nonemployee [Member] | Share-Based Payment Arrangement, Option [Member]                      
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)         1 year