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Business Combinations - Narrative (Details) - ADFLOW Networks [Member] - USD ($) $ in Thousands	12 Months Ended
	Apr. 29, 2017	Mar. 15, 2016
Business Acquisition [Line Items]
Percentage acquired		100.00%
Business Combination, Contingent Consideration, Liability		$ 1,833
Deferred payments period	3 years

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Business Combination, Contingent Consideration, Deferred Payments Term

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
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Amount of liability recognized arising from contingent consideration in a business combination.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
-Section 50
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-Name Accounting Standards Codification
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-Name Accounting Standards Codification
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