Property, Plant and Equipment

12 Months Ended

Jul. 31, 2020

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, Plant and Equipment

Property, plant and equipment consist of the following at July 31, 2020 and 2019:

	2020		2019
Machinery and equipment	$	156,314,000	159,882,000
Leasehold improvements	15,596,000		14,265,000
	171,910,000		174,147,000
Less accumulated depreciation and amortization	144,873,000		146,121,000
Property, plant and equipment, net	$	27,037,000	28,026,000

Depreciation and amortization expense on property, plant and equipment amounted to $10,386,000, $11,927,000 and $13,655,000 for the fiscal years ended July 31, 2020, 2019 and 2018, respectively.