Capital Stock and Stock-Based Awards (Details) - Schedule of capital stock - shares	May 31, 2017	May 31, 2016
Capital Stock and Stock-Based Awards (Details) - Schedule of capital stock [Line Items]
Authorized	2,000,000	2,000,000
Common Class A [Member]
Capital Stock and Stock-Based Awards (Details) - Schedule of capital stock [Line Items]
Authorized	4,000,000	4,000,000
Reserved for Issuance	244,506
Outstanding	1,656,200	1,656,200
Common Stock [Member]
Capital Stock and Stock-Based Awards (Details) - Schedule of capital stock [Line Items]
Authorized	70,000,000	70,000,000
Reserved for Issuance	6,822,489
Outstanding	33,383,303	32,657,977
Preferred Stock [Member]
Capital Stock and Stock-Based Awards (Details) - Schedule of capital stock [Line Items]
Authorized	2,000,000
Reserved for Issuance	0
Outstanding	0

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- Definition

Aggregate number of common shares reserved for future issuance.

+ References

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- Definition

The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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- Definition

Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

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Aggregate number of nonredeemable preferred shares reserved for future issuance.

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The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

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Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.

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