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Goodwill (Details) $ in Thousands	9 Months Ended
	Feb. 01, 2020 USD ($)
Goodwill
Balance as of April 27, 2019	$ 7,889
Foreign currency translation	45
Balance as of February 1, 2020	7,934
Live Events
Goodwill
Balance as of April 27, 2019	2,276
Foreign currency translation	8
Balance as of February 1, 2020	2,284
Commercial
Goodwill
Balance as of April 27, 2019	3,218
Foreign currency translation	54
Balance as of February 1, 2020	3,272
Transportation
Goodwill
Balance as of April 27, 2019	49
Foreign currency translation	8
Balance as of February 1, 2020	57
International
Goodwill
Balance as of April 27, 2019	2,346
Foreign currency translation	(25)
Balance as of February 1, 2020	$ 2,321

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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
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- 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

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- Definition

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