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Inventories (Tables)
3 Months Ended
Jul. 30, 2016
Inventory Disclosure [Abstract]  
Schedule of Inventories
Inventories consisted of the following: 
 
July 30,
2016
 
April 30,
2016
Raw materials
$
28,317

 
$
28,184

Work-in-process
5,623

 
6,158

Finished goods
34,653

 
35,485

 
$
68,593

 
$
69,827