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Inventories (Tables)
6 Months Ended
Jan. 31, 2014
Inventory Disclosure [Abstract]  
Inventories
Inventories consist of the following at:
 
 
January 31, 2014
 
July 31, 2013
Raw materials and components
 
$
55,791,000

 
52,169,000

Work-in-process and finished goods
 
30,030,000

 
29,539,000

Total inventories
 
85,821,000

 
81,708,000

Less reserve for excess and obsolete inventories
 
15,726,000

 
16,226,000

Inventories, net
 
$
70,095,000

 
65,482,000