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COMPOSITION OF CERTAIN FINANCIAL STATEMENT ITEMS (Tables)
3 Months Ended
Sep. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Schedule of investments
      
   September 30, 2024   June 30,
2024
 
Marketable equity securities          
Short-term  $4,738   $4,217 
Long-term   1,475    1,563 
Total Investments  $6,213   $5,780 
Schedule of inventory
      
   September 30,
2024
   June 30,
2024
 
Raw materials/purchased components  $7,438   $6,703 
Work in process   5,728    5,103 
Sub-assemblies/finished components   2,810    2,342 
Finished goods   628    1,121 
         Total inventory  $16,604   $15,269 
Schedule of intangibles
      
   September 30,
2024
   June 30,
2024
 
Patent-related costs  $208   $208 
       Less accumulated amortization   (161)   (154)
   $47   $54