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Investments (Tables)

12 Months Ended

May 31, 2013

Investments [Abstract]

Summary of investments

The following is a summary of investments:

		Gross Amortized Costs				Gross Unrealized Gain				Fair Value
		(Dollars in thousands)
May 31, 2013
U. S. Treasury Bills		$	4,000			$	—			$	4,000
May 31, 2012
U. S. Treasury Bills		$	16,998			$	5			$	17,003

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- Definition

Tabular disclosure of all investments in certain debt and equity securities for which the entity has the positive intent and ability to hold until maturity.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

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-Publisher FASB

-Name Accounting Standards Codification

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Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 320

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-Publisher FASB

-Name Accounting Standards Codification

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-Name Accounting Standards Codification

-Topic 320

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