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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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-Name Accounting Standards Codification

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-Name Accounting Standards Codification

-Glossary Antidilution

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-Name Accounting Standards Codification

-Glossary Diluted Earnings Per Share

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-Name Accounting Standards Codification

-Glossary Contingent Stock Agreement

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- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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-Publisher FASB

-Name Accounting Standards Codification

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The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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- Definition

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

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No definition available.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Number of share options (or share units) exercised during the current period.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

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Significant Accounting Policies (Details) (USD $)	3 Months Ended		6 Months Ended
Significant Accounting Policies (Details) (USD $)	Nov. 30, 2014	Nov. 30, 2013	Nov. 30, 2014	Nov. 30, 2013	May 31, 2014
Significant Accounting Policies (Details) [Line Items]
Amortization of Intangible Assets	$ 18,479us-gaap_AmortizationOfIntangibleAssets	$ 3,665us-gaap_AmortizationOfIntangibleAssets	$ 36,660us-gaap_AmortizationOfIntangibleAssets	$ 11,121us-gaap_AmortizationOfIntangibleAssets
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares)			24,500
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in Dollars per share)			$ 0.85
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period (in Shares)			9,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price (in Dollars per share)			$ 0.39
Proceeds from Stock Options Exercised			3,495	1,780
Equity Method Investment, Ownership Percentage	6.00%		6.00%
Deferred Tax Assets, Valuation Allowance	180,000		180,000		0
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in Shares)	344,024	372,816	371,731	379,180
Property, Plant And Equipment And Leasehold Improvements [Member]
Significant Accounting Policies (Details) [Line Items]
Depreciation, Depletion and Amortization	$ 44,276	$ 43,452	$ 89,516	$ 86,231
Marketing And Distribution Rights [Member]
Significant Accounting Policies (Details) [Line Items]
Finite-Lived Intangible Asset, Useful Life			18 years
Purchased Technology Use Rights and Licenses [Member]
Significant Accounting Policies (Details) [Line Items]
Finite-Lived Intangible Asset, Useful Life			10 years
Patents [Member]
Significant Accounting Policies (Details) [Line Items]
Finite-Lived Intangible Asset, Useful Life			17 years
Minimum [Member]
Significant Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Useful Life			5 years
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price (in Dollars per share)			$ 0.38
Maximum [Member]
Significant Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Useful Life			10 years
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price (in Dollars per share)			$ 0.43