Segment reporting (Details) - Schedule of revenues attributable to customers located in the United States and foreign countries

v3.21.2

Segment reporting (Details) - Schedule of revenues attributable to customers located in the United States and foreign countries - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Aug. 31, 2019
Segment reporting (Details) - Schedule of revenues attributable to customers located in the United States and foreign countries [Line Items]
Revenues	$ 30,747	$ 26,561	$ 30,055
United States [Member]
Segment reporting (Details) - Schedule of revenues attributable to customers located in the United States and foreign countries [Line Items]
Revenues	15,617	14,824	16,966
Foreign Countries [Member]
Segment reporting (Details) - Schedule of revenues attributable to customers located in the United States and foreign countries [Line Items]
Revenues	$ 15,130	$ 11,737	$ 13,089