Property and Equipment - Schedule of Financing Lease Assets and Lease Liabilities (Details) - USD ($) $ in Thousands	Jul. 31, 2026	Apr. 30, 2026
Property, Plant, and Equipment [Abstract]
Finance lease equipment, net	$ 66	$ 85
Vendor-financed equipment, net	469	0
Current portion of financing lease liabilities	66	79
Current equipment financing liability	168	0
Total current equipment financing arrangements	234	79
Non-current portion of financing lease liabilities	0	7
Non-current equipment financing liability	215	0
Total non-current equipment financing arrangements	$ 215	$ 7