Inventories (Tables)

6 Months Ended

Jan. 31, 2020

Inventory Disclosure [Abstract]

Inventories

Inventories consist of the following at:

	January 31, 2020		July 31, 2019
Raw materials and components	$	56,100,000	53,959,000
Work-in-process and finished goods	37,875,000		40,576,000
Total inventories	93,975,000		94,535,000
Less reserve for excess and obsolete inventories	19,911,000		19,696,000
Inventories, net	$	74,064,000	74,839,000