Stock-based Compensation	9 Months Ended
Feb. 28, 2019
Stock-based Compensation [Text Block]	5. Stock-based Compensation On May 28, 2010, the Board of Directors of the Company adopted the 2010 Stock Plan (the "Plan"). The maximum number of shares of the Company's common stock available for issuance under the Plan is 10,294,500 shares. An aggregate of 5,147,250 shares may be issued under stock options and an aggregate of 5,147,250 shares may be issued in the form of restricted shares. At February 28, 2019 and 2018, the Company had no outstanding or exercisable stock options.

The entire disclosure for accounts comprising shareholders' equity, comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income, and compensation-related costs for equity-based compensation. Includes, but is not limited to, disclosure of policies, compensation plan details, equity-based arrangements to obtain goods and services, deferred compensation arrangements, and employee stock purchase plan details.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-URI http://asc.fasb.org/topic&trid=2208762

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-URI http://asc.fasb.org/topic&trid=2228938

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