Schedule of Accumulated Balances for Each Classification of Other Comprehensive (Loss) Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (7,410)	$ (4,858)
Other Comprehensive Income (Loss), Net of Tax	(2,773)	(2,552)
Accumulated Other Comprehensive Income (Loss), Net of Tax	(10,183)	(7,410)
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	42
Other Comprehensive Income (Loss), Net of Tax	(51)	42
Accumulated Other Comprehensive Income (Loss), Net of Tax	(9)	42
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(7,452)	(4,858)
Other Comprehensive Income (Loss), Net of Tax	(2,722)	(2,594)
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (10,174)	$ (7,452)