Annual report pursuant to Section 13 and 15(d)

Revenue recognition (Details)

v3.22.2.2
Revenue recognition (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Jun. 30, 2020
Apr. 30, 2020
Jul. 31, 2022
Jul. 31, 2021
Jul. 31, 2020
Revenue recognition (Details) [Line Items]          
Income grants (in Dollars) $ 1,496 $ 1,496      
Clinical Services Revenue [Member]          
Revenue recognition (Details) [Line Items]          
Percentage of clinical services business     70.00% 74.00% 63.00%