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Property, Plant and Equipment (Tables)
12 Months Ended
Jul. 31, 2019
Property, Plant and Equipment [Abstract]  
Property, Plant, and Equipment
Property, plant and equipment consist of the following at July 31, 2019 and 2018:
 
 
2019
 
2018
Machinery and equipment
 
$
159,882,000

 
154,556,000

Leasehold improvements
 
14,265,000

 
13,807,000

 
 
174,147,000

 
168,363,000

Less accumulated depreciation and amortization
 
146,121,000

 
139,376,000

Property, plant and equipment, net
 
$
28,026,000

 
28,987,000