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Stockholders' Equity - Narrative (Details) - USD ($)	3 Months Ended	9 Months Ended
	Feb. 24, 2019	Feb. 24, 2019	Jul. 14, 2010
Class of Stock [Line Items]
Granted options (in shares)	31,000	206,000
Shares for future issuance (in shares)	2,695,000	2,695,000
Repurchase plan authorized amount			$ 10,000,000
Treasure shares acquired (in shares)		0
RSUs
Class of Stock [Line Items]
Awarded (in shares)	9,000	263,000

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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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Aggregate number of common shares reserved for future issuance.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
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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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
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