Investments (Tables)

9 Months Ended

Feb. 28, 2014

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Summary of Investments

The following is a summary of investments:

	Gross Amortized Costs		Gross Unrealized Gains		Fair Value
	(Dollars in thousands)
February 28, 2014
U. S. Treasury Bills	$	2,000	$	—	$	2,000
May 31, 2013
U. S. Treasury Bills	$	4,000	$	—	$	4,000