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Inventories (Tables)
6 Months Ended
Oct. 26, 2013
Inventory Disclosure [Abstract]  
Schedule of Inventories
Inventories consisted of the following: 
 
October 26,
2013
 
April 27,
2013
Raw materials
$
22,840

 
$
20,979

Work-in-process
7,049

 
8,523

Finished goods
21,419

 
19,543

 
$
51,308

 
$
49,045