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Marketable Securities - Available-for-sale by Maturity Date (Details) $ in Thousands	Apr. 29, 2017 USD ($)
Schedule of Available-for-sale Securities
Less than 12 months	$ 15,429
Greater than 12 months	17,284
Total	32,713
Certificates of deposit
Schedule of Available-for-sale Securities
Less than 12 months	6,536
Greater than 12 months	5,951
Total	12,487
U.S. Government securities
Schedule of Available-for-sale Securities
Less than 12 months	400
Greater than 12 months	0
Total	400
U.S. Government sponsored entities
Schedule of Available-for-sale Securities
Less than 12 months	5,588
Greater than 12 months	6,650
Total	12,238
Municipal obligations
Schedule of Available-for-sale Securities
Less than 12 months	2,905
Greater than 12 months	4,683
Total	$ 7,588

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- Definition

Available-for-sale Securities, Debt Maturities, After One Year, Fair Value

+ References

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Fair value of available-for-sale debt securities maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
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Amount of debt securities categorized neither as held-to-maturity nor trading.

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-Name Accounting Standards Codification
-Topic 320
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