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Income Taxes (Details) - Schedule of income taxes expected at the U.S. federal statutory income tax rate and income taxes - USD ($)
$ in Thousands
12 Months Ended
Jul. 31, 2021
Jul. 31, 2020
Schedule of income taxes expected at the U.S. federal statutory income tax rate and income taxes [Abstract]    
U.S federal income tax (benefit) at statutory rate $ 1,690 $ (114)
State tax (net of federal benefit) 5 29
Change in valuation allowance (1,601) 13
Foreign tax rate differential (10) (6)
Other (286) 93
Provision for (benefit from) income taxes $ (202) $ 15