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Significant Accounting Policies (Detail) (USD $)	3 Months Ended		9 Months Ended
	Feb. 28, 2013	Feb. 29, 2012	Feb. 28, 2013	Feb. 29, 2012
Depreciation, Depletion and Amortization (in Dollars)	$ 49,220	$ 34,556	$ 142,484	$ 105,751
Amortization (in Dollars)	$ 4,368	$ 8,571	$ 21,927	$ 24,047
Cost Method Investments, Percentage Of Investees	6.00%		6.00%
Effective Income Tax Rate, Continuing Operations			38.00%
Warrant [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in Shares)			910,625	460,250
Minimum [Member]
Property, Plant and Equipment, Useful Life			5 years
Maximum [Member]
Property, Plant and Equipment, Useful Life			10 years
Accounts Receivable [Member]
Concentration Risk, Percentage			32.00%
Net Sales [Member]
Concentration Risk, Percentage	10.30%		48.60%
Marketing And Distribution Rights [Member]
Finite-Lived Intangible Asset, Useful Life			18 years
Purchased Technology Use Rightsand Licenses [Member]
Finite-Lived Intangible Asset, Useful Life			10 years
Patents [Member]
Finite-Lived Intangible Asset, Useful Life			17 years

X

- Definition

Percentage of investee to which the cost method investment is applied.

+ References

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- Definition

The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 07-4

-Paragraph 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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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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-Publisher FASB

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A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

+ References

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-Publisher SEC

-Name Regulation S-X (SX)

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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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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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