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Goodwill (Tables)
 3 Months Ended
Aug. 02, 2014
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill
The changes in the carrying amount of goodwill related to each reportable segment for the three months ended August 2, 2014 were as follows: 
 
Live Events
 
Commercial
 
Transportation
 
International
 
Total
Balance as of April 26, 2014:
$
2,381

 
$
723

 
$
129

 
$
1,325

 
$
4,558

Disposal of automated rigging systems for theatre applications
(22
)
 
—

 
—

 
—

 
(22
)
Foreign currency translation
6

 
—

 
5

 
(41
)
 
(30
)
Balance as of August 2, 2014:
$
2,365

 
$
723

 
$
134

 
$
1,284

 
$
4,506