Note 6 - Property and Equipment, Net (Tables)

3 Months Ended

Aug. 31, 2015

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment [Table Text Block]

	As of
	August 31, 2015			May 31, 2015
Land	$	238			250
Buildings and improvements		2,357			2,494
Leasehold improvements		25,816			25,639
Capital work-in-progress		8,100			6,897
Furniture and fixtures		3,765			3,757
Machinery, equipment and instruments		95,250			94,021
		135,526			133,058
Less accumulated depreciation		(62,186	)		(59,484	)
Property and equipment, net	$	73,340			73,574