Operating Leases - Schedule of Lease-Related Assets and Liabilities for Leases Recorded on the Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Jul. 31, 2025	Jul. 31, 2024
Other assets [Member]
Operating leases:
Operating lease liabilities	$ 64	$ 214
Accrued expenses and other current liabilities [Member]
Operating leases:
Operating lease liabilities	144	85
Other liabilities [Member]
Operating leases:
Operating lease liabilities	53	118
Total operating lease liabilities [Member]
Operating leases:
Operating lease liabilities	$ 196	$ 203