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Sale-Leaseback Financing Transaction - Narrative (Details)
$ in Thousands
 3 Months Ended
Jul. 31, 2025
USD ($)
renewalOption
Jul. 31, 2024
USD ($)
Apr. 30, 2025
USD ($)
Financing Liability [Line Items]      
Term of agreement 20 years    
Number of renewal options | renewalOption 4    
Renewal term 5 years    
Initial basic monthly rent $ 158    
Annual rental increase, as a percent 2.00%    
Discount rate 4.75%    
Gain (loss) on sale leaseback agreement $ 0    
Financing liability 27,227   $ 27,420
Financing liability, debt issuance costs, net 575   589
Current portion of financing liability 807   788
Long-term portion of financing liability 26,420   26,632
Interest expense on financing liability 308 $ 317  
Property, plant and equipment, at cost $ 72,748   $ 71,983
Building      
Financing Liability [Line Items]      
Useful Life (in years) 20 years    
Land      
Financing Liability [Line Items]      
Property, plant and equipment, at cost $ 41