Note 9 - Derivative Financial Instruments (Tables)

3 Months Ended

Aug. 31, 2012

Schedule of Interest Rate Derivatives [Table Text Block]

	August 31, 2012			May 31, 2012
	(in thousands)			(in thousands)
Interest rate swaps (included in other liabilities)	$	(2,559	)	$	(2,198	)