v3.26.1
Note 15 - Equity Incentive Plan (Tables)
9 Months Ended
Mar. 31, 2026
Notes Tables  
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
          

Weighted

 
          

Average

 
      

Weighted

  

Remaining

 
  

Number of

  

Average

  

Contractual

 
  

Options

  

Exercise Price

  

Life in Years

 

Outstanding at June 30, 2025

  211,618  $4.51   8.3 

Forfeited/cancelled

  (1,382) $1.81    

Expired

  (6,492) $8.72    

Outstanding at March 31, 2026

  203,744  $4.40   7.7 
             

Exercisable at March 31, 2026

  149,336  $5.33   7.4 
Nonvested Restricted Stock Shares Activity [Table Text Block]
      

Weighted

 
      

Average Grant

 
  

Number of

  

Date Fair

 
  

Shares

  

Value

 

Unvested at June 30, 2025

  32,912  $69.81 

Granted

  276,295  $1.92 

Vested

  (83,907) $2.05 

Forfeited/cancelled

  (5,000) $1.90 

Unvested at March 31, 2026

  220,300  $12.01 
Share-Based Payment Arrangement, Cost by Plan [Table Text Block]
  

Three Months Ended

  

Nine Months Ended

 
  

March 31,

  

March 31,

 
  

2026

  

2025

  

2026

  

2025

 
  

(in thousands)

 

Cost of goods sold

 $  $  $  $1 

Research and development

     8      11 

Selling and marketing

  7   11   19   57 

General and administrative

  141   120   526   394 

Total stock-based compensation expense

 $148  $139  $545  $463