3. INVENTORIES (Tables)

12 Months Ended

May 31, 2016

Inventory Disclosure [Abstract]

Inventories

     Inventories comprise (in thousands):

	May 31,
	2016		2015
Raw materials and sub-assemblies	$	2,839	$	4,018
Work in process		4,151		2,584
Finished goods		43		521
	$	7,033	$	7,123