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PRODUCT WARRANTIES - Schedule of Product Warranty Liability (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Jul. 31, 2025
Apr. 30, 2025
Schedule Of Product Warranty Liability Abstract    
Balance at beginning of year $ 567 $ 542
Warranty costs incurred (72) (253)
Product warranty accrual 68 278
Balance at end of year $ 563 $ 567