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Note 16 - Sale of Product Line (Tables)
9 Months Ended
Jan. 31, 2025
Notes Tables  
Disposal Groups, Including Discontinued Operations [Table Text Block]
   January 31, 2025  

Inventory, net

 $460  
      

Machinery and equipment

  1,322  

Accumulated depreciation

  (1,322) 
Total property, plant and equipment  -  
      

Other assets

  1,417  

Accumulated amortization

  (1,417) 

Other assets, net of accumulated amortization

  -  
  $460