Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details) - Schedule of expenses related share-based payment arrangements

v3.21.2
Summary of Significant Accounting Policies (Details) - Schedule of expenses related share-based payment arrangements - USD ($)
$ in Thousands
 12 Months Ended
Jul. 31, 2021
Jul. 31, 2020
Aug. 31, 2019
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
Share Based Compensation $ 907 $ 933 $ 939
Cost of Clinical Laboratory Services [Member]      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
Share Based Compensation 93 46  
Selling, General and Administrative Expenses [Member]      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
Share Based Compensation $ 814 $ 887 $ 939