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GENERAL AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
 12 Months Ended
Apr. 30, 2017
Accounting Policies [Abstract]  
Summary of Cash and Cash Equivalents by Geographic Area
A summary of our cash and cash equivalents by geographic area follows:
 
   April 30,     May 1,  
(dollars in thousands)   
2017
    
2016
  
China 
   $ 12,722       8,454  
Cayman Islands     4,020      
25,762
  
Canada      2,906       3,550  
United States 
     1,147       21  
 
   $ 20,795       37,787  
                 
Summary of Short-Term Investments by Geographic Area
A summary of our short-term investments by geographic area follows:
 
   April 30,    
May 1,
  
(dollars in thousands)
  
2017
    
2016
  
Canada 
  
$
1,362
       3,294  
United States      1,081       1,065  
 
  
$
2,443
       4,359  
                 
Summary of Foreign Currency Exchange Gains (Losses) by Geographic Area
A summary of our foreign currency exchange gains (losses) by geographic area follows:
(dollars in thousands)  
2017
     2016     2015  
China    $ 111       (70 )     241  
Canada      (120 )     76       (108 )
Poland      -       -       (2 )
 
   $ (9 )     6       131