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Investments

9 Months Ended

Feb. 28, 2013

NOTE 3 Investments

The following is a summary of investments:


	Gross Amortized Costs		Gross Unrealized (Losses) Gains		Fair Value
	(Dollars in thousands)
February 28, 2013
U. S. Treasury Bills	$	6,000	$	—	$	6,000

May 31, 2012
U. S. Treasury Bills	$	16,998	$	5	$	17,003

The fair value is determined by a secondary market for U.S. Government Securities. At May 31, 2012, the U.S. Treasury Bills matured within four months. At February 28, 2013, the U.S. Treasury Bills mature within two months.