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Note 17 - Business Segments (Tables)
12 Months Ended
Jun. 30, 2025
Notes Tables  
Schedule of Segment Reporting Information, by Segment [Table Text Block]
       

Gross

  

Operating

             
 

Year Ended

     

Profit /

  

Income /

  

Total

  

Depr. And

  

Capital

 
 

Jun. 30,

 

Revenue

  

(Loss)

  

(Loss)

  

Assets

  

Amort.

  

Expenditures

 

Semiconductor Back-End Solutions

2025

 $24,682  $6,766  $411  $23,114  $2,437  $867 
 

2024

 $30,111  $8,376  $1,095  $23,418  $4,056  $542 
                          

Industrial Electronics

2025

  11,756  $2,412  $236  $6,659  $236  $100 
 

2024

  12,176  $2,432  $509  $6,439  $210  $- 
                          

Corporate/Others & Unallocated

2025

  35  $(34) $(393) $11,295  $68  $- 
 

2024

  25  $(46) $(511) $12,683  $75  $- 
                          

Total Company

2025

 $36,473  $9,144  $254  $41,068  $2,741  $967 
 

2024

 $42,312  $10,762  $1,093  $42,540  $4,341  $542