Investments (Tables)

3 Months Ended

Aug. 31, 2013

Text Block [Abstract]

Summary of Investments

The following is a summary of investments:

	Gross Amortized Costs		Gross Unrealized Gains		Fair Value
	(Dollars in thousands)
August 31, 2013
U. S. Treasury Bills	$	7,000	$	—	$	7,000
May 31, 2013
U. S. Treasury Bills	$	4,000	$	—	$	4,000