v3.26.1
Note 10 - Stock Incentive Plan and Employee Stock Purchase Plan (Details Textual) - USD ($)
12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Nov. 30, 2025
Jun. 11, 2025
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares) 0 0    
Share Price (in dollars per share) $ 0.26 $ 1.37   $ 1.25
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares) (0)      
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) 11,125      
Stock Issued During Period, Value, New Issues $ 665,000 $ 1,627,000    
2026 Equity Incentive Plan [Member]        
Common Stock, Capital Shares Reserved for Future Issuance (in shares)     3,896,000  
Share-Based Payment Arrangement, Option [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares)   0    
Share-Based Payment Arrangement, Expense, Tax Benefit   $ 0    
Restricted Stock Units (RSUs) [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Grant Date Fair Value 6,000,000 9,200,000    
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value 3,900,000 5,500,000    
Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount $ 6,800,000      
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) 1 year 7 months 6 days      
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) 6,942      
Performance Share Units [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Grant Date Fair Value $ 2,400,000 2,800,000    
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value 0 0    
Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount $ 1,400,000      
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) 1 year 9 months 18 days      
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) 4,183      
Restricted Stock Awards [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Grant Date Fair Value $ 1,500,000      
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value $ 400,000 $ 0    
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) 4 months 24 days      
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)   0    
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount $ 200,000      
Performance Share Awards [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Grant Date Fair Value 1,400,000      
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value $ 0 $ 0    
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) 1 year 1 month 6 days      
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)   0    
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount $ 600,000      
The 2016 Plan [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares) 10.8      
The 2016 Plan [Member] | Share-Based Payment Arrangement, Option [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year) 10 years      
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year) 36 months      
The 2016 Plan [Member] | Share-Based Payment Arrangement, Option [Member] | Share-Based Payment Arrangement, Tranche One [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage 25.00%      
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year) 1 year      
The 2016 Plan [Member] | Restricted Stock Units (RSUs) [Member] | Board of Directors [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year) 1 year      
The 2016 Plan [Member] | Restricted Stock Units (RSUs) [Member] | Share-Based Payment Arrangement, Tranche One [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage 25.00%      
The 2016 Plan [Member] | Performance Share Units [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year) 3 years      
Employee Stock Purchase Plan [Member]        
Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount $ 200,000      
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) 10 months 24 days      
Employee Stock Ownership Plan (ESOP), Percentage of Share Price   85.00%    
Stock Issued During Period, Shares, New Issues (in shares) 1,000,000 1,200,000    
Shares Issued, Price Per Share (in dollars per share) $ 0.65 $ 1.37    
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares) 1.6      
Employee Stock Purchase Plan [Member] | Maximum [Member]        
Stock Issued During Period, Shares, New Issues (in shares) 2,500      
Stock Issued During Period, Value, New Issues $ 25,000