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Property, Plant, and Equipment (Tables)
 12 Months Ended
Jul. 31, 2022
Property, Plant and Equipment [Line Items]  
Schedule of Property, Plant and Equipment

Property, plant, and equipment consist of the following:

 

July 31
(in thousands)		  2022   2021 
Equipment  $40,811   $50,039 
Computer software   156,258    141,978 
Leasehold improvements   1,874    1,727 
Furniture and fixtures   681    588 
Property, plant and equipment, gross   199,624    194,332 
Less accumulated depreciation and amortization   (162,758)   (163,503)
Property, plant, and equipment, net  $36,866   $30,829 
Telephone Equipment [Member]  
Property, Plant and Equipment [Line Items]  
Schedule of Property, Plant and Equipment

Telephone equipment leased to customers included in “Equipment” in the table above was as follows:

 

July 31        
(in thousands)  2022   2021 
Equipment  $9,844   $7,438 
Less accumulated depreciation   (3,129)   (2,071)
Net  $6,715   $5,367