v3.26.1
Note 1 - General Information (Tables)
9 Months Ended
Mar. 31, 2026
Notes Tables  
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue [Table Text Block]
  

Three Months Ended

  

Nine Months Ended

 

Revenue by Segment

 March 31, 2026  March 31, 2025  March 31, 2026  March 31, 2025 

(In thousands)

                

United States

 $221   487  $599  $709 

Foreign Countries

  122   47   188   120 

Total Revenue

 $343  $534  $787  $829 
Disaggregation of Revenue [Table Text Block]
Product Revenue Three Months Ended  Nine Months Ended 

(In thousands)

 March 31, 2026  March 31, 2025  March 31, 2026  March 31, 2025 
Product Revenue $147  $348   220   543 
Training Revenue       $20    

Grant Revenue

  

(41

)  68   205   94 

Service Revenue

  217   56   294   84 
Warranty Revenue  20   62   48   108 

Total Revenue

 $343  $534  $787  $829