Note 4. Prepaid Expenses and Other Current Assets

12 Months Ended

May 31, 2011

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]

4. PREPAID EXPENSES AND OTHER CURRENT ASSETS

	May 31,
	2011		2010
	(in thousands)
Accrued refund of BioArray escrowed funds		7,000		-
Prepaid expenses		2,919		3,944
Other accruals		1,245		888
Prepaid expenses and other current assets	$	11,164	$	4,832