Fair Value Measurements (Details) - Schedule of liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2021	Jan. 31, 2020	Jan. 31, 2021	Jan. 31, 2020
Schedule of liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) [Abstract]
Balance, beginning of period	$ 391		$ 396
Transfer into Level 3 from acquisitions (see Note 9)	393	375	393	375
Total loss (gain) included in “Foreign currency translation adjustment”	15	(5)	10	(5)
Balance, end of period	799	370	799	370
Change in unrealized gains or losses for the period included in earnings for liabilities held at the end of the period