Inventories (Tables)

6 Months Ended

Jan. 31, 2021

Inventory Disclosure [Abstract]

Inventories

Inventories consist of the following at:

	January 31, 2021		July 31, 2020
Raw materials and components	$	62,194,000	59,175,000
Work-in-process and finished goods	39,569,000		42,203,000
Total inventories	101,763,000		101,378,000
Less reserve for excess and obsolete inventories	20,133,000		19,076,000
Inventories, net	$	81,630,000	82,302,000