v3.26.1
Note 5 - Stockholders' Equity (Tables)
9 Months Ended
Mar. 31, 2026
Notes Tables  
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
  

March 31, 2025

  

October 30, 2024

 
  

Options

  

Options

 
         

Risk-free interest rate

  4.35%  4.22%

Expected volatility

  83.50%  83.50%

Dividend yield

  %  %

Expected option term in years

  2.4   5.5 
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
      

Wtd. Avg.

 
      

Exercise

 
  

Options

  

Price

 

Balance, July 1, 2025

  450,000  $0.65 

Granted during the period

      

Exercised during the period

      

Cancelled during the period

      

Balance, March 31, 2026

  450,000  $0.65 
      

Wtd. Avg.

 
      

Exercise

 
  

Options

  

Price

 

Balance, July 1, 2024

  250,000  $1.10 
Granted during the period  450.000   0.65 

Exercised during the period

      

Canceled during the period

  (250,000)   (1.10) 

Balance, March 31, 2025

  450,000  $0.90 
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable [Table Text Block]

Range of

  

Number

  

Number

  

Wtd. Avg, Life

  

Wtd. Avg.

 

Exercise Price

  

Outstanding

  

Exercisable

  

(in years)

  

Exercise Price

 
$0.65   450,000   331,000   7.79  $0.65