Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Jul. 31, 2022	Jul. 31, 2021
Property, Plant and Equipment [Line Items]
Equipment	$ 40,811	$ 50,039
Computer software	156,258	141,978
Leasehold improvements	1,874	1,727
Furniture and fixtures	681	588
Equipment	199,624	194,332
Less accumulated depreciation	(162,758)	(163,503)
Net	36,866	30,829
Telephone Equipment [Member]
Property, Plant and Equipment [Line Items]
Equipment	9,844	7,438
Less accumulated depreciation	(3,129)	(2,071)
Net	$ 6,715	$ 5,367

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated amortization of capitalized costs for computer software, including but not limited to, acquired and internally developed computer software.

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Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.

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Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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