Accrued Liabilities (Details) - USD ($) $ in Thousands	Apr. 30, 2023	Jul. 31, 2022
Payables and Accruals [Abstract]
Reserves amount	$ 290	$ 260

Amount of expenses incurred but not yet paid nor invoiced, and liabilities classified as other.

No definition available.

Name:	us-gaap_AccruedLiabilitiesAndOtherLiabilities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant