Note 6 - Inventories, Net (Tables)

9 Months Ended

Feb. 29, 2016

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	As of
	February 29, 2016		May 31, 2015
Raw materials and supplies	$	14,029		10,816
Work in process		9,034		9,197
Finished goods		24,781		21,834
	$	47,844		41,847