6. INVENTORIES (Tables)

3 Months Ended

Aug. 31, 2017

Inventory Disclosure [Abstract]

Inventories

    Inventories are comprised of the following (in thousands):

	August 31,		May 31,
	2017		2017
Raw materials and sub-assemblies	$	5,928	$	4,268
Work in process		2,639		2,059
Finished goods		453		277
	$	9,020	$	6,604