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PROPERTY, PLANT AND EQUIPMENT
12 Months Ended
Apr. 30, 2017
Property, Plant and Equipment [Abstract]  
PROPERTY, PLANT AND EQUIPMENT
4.
PROPERTY, PLANT AND EQUIPMENT
 
A summary of property, plant and equipment follows:                                                         

(dollars in thousands)
 
depreciable lives
(in years)
   
April 30,
2017
   
May 1,
2016
 
land and improvements
   
0-10
   
$
836
     
836
 
buildings and improvements
   
7-40
     
19,071
     
16,126
 
leasehold improvements
   
**
 
   
1,541
     
1,340
 
machinery and equipment
   
3-12
     
67,709
     
64,114
 
office furniture and equipment
   
3-10
     
8,936
     
8,212
 
capital projects in progress
           
12,901
     
2,896
 
             
110,994
     
93,524
 
accumulated depreciation and amortization
           
(59,343
)
   
(53,551
)
           
$
51,651
     
39,973
 
 
** Shorter of life of lease or useful life.