Leases (Details) - Schedule of supplemental disclosures related to the Company's operating leases - USD ($) $ in Thousands	3 Months Ended
	Oct. 31, 2020	Oct. 31, 2019
Schedule of supplemental disclosures related to the Company's operating leases [Abstract]
Operating lease cost	$ 729	$ 711
Short-term lease cost	65	58
Total lease cost	794	769
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 710	$ 684