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Goodwill (Details) $ in Thousands	3 Months Ended
	Jul. 30, 2016 USD ($)
Goodwill
Balance as of April 30, 2016	$ 8,116
Foreign currency translation	(222)
Balance as of July 30, 2016	7,894
Live Events
Goodwill
Balance as of April 30, 2016	2,304
Foreign currency translation	(18)
Balance as of July 30, 2016	2,286
Commerical
Goodwill
Balance as of April 30, 2016	3,350
Foreign currency translation	(120)
Balance as of July 30, 2016	3,230
Transportation
Goodwill
Balance as of April 30, 2016	75
Foreign currency translation	(17)
Balance as of July 30, 2016	58
International
Goodwill
Balance as of April 30, 2016	2,387
Foreign currency translation	(67)
Balance as of July 30, 2016	$ 2,320

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975

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X

- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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