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Income Taxes (Tables)
9 Months Ended
Jan. 29, 2017
Income Tax Disclosure [Abstract]  
Summary of Differences in Income Tax Expense at Federal Income Tax Rate and Effective Income Tax Rate
The following schedule summarizes the factors that are attributable to the difference between income tax expense at the federal income tax rate and the effective income tax rate reflected in the consolidated financial statements:

   
2017
   
2016
 
Federal income tax rate
   
34.0
%
   
34.0
%
Tax effects of Chinese foreign exchange gains
   
1.9
     
3.5
 
Reversal of foreign uncertain tax position
   
(9.1
)
   
-
 
U.S state income tax expense
   
0.6
     
0.7
 
Other
   
1.5
     
(2.5
)
     
28.9
%
   
35.7
%