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Inventories
6 Months Ended
Oct. 29, 2017
Inventory Disclosure [Abstract]  
Inventories
5.  Inventories

Inventories are carried at the lower of cost or market. Cost is determined using the FIFO (first-in, first-out) method.

A summary of inventories follows:
 
             
(dollars in thousands)
 
October 29, 2017
 
October 30, 2016
 
April 30, 2017
Raw materials
 
$
6,617
   
$
6,128
   
$
6,456
 
Work-in-process
   
2,686
     
2,518
     
3,095
 
Finished goods
   
40,906
     
37,308
     
41,931
 
   
$
50,209
   
$
45,954
   
$
51,482