Stock-based Compensation and Stockholders' Equity - Narrative (Details) - USD ($)	3 Months Ended
Aug. 25, 2019	Jul. 14, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted options (in shares)	0
Shares for future issuance (in shares)	2,500,000
Repurchase plan authorized amount		$ 10,000,000
Treasure shares acquired (in shares)	0
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awarded (in shares)	87,000
Weighted-average period (in years)	1 year 10 months 29 days
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense	$ 4,300,000
Weighted-average period (in years)	1 year 10 months 5 days

Aggregate number of common shares reserved for future issuance.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
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Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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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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Gross number of share options (or share units) granted during the period.

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Amount of stock repurchase plan authorized.

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Number of shares that have been repurchased during the period and are being held in treasury.

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-Topic 505
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