4. PROPERTY AND EQUIPMENT, NET (Tables)

12 Months Ended

May 31, 2014

Property, Plant and Equipment [Abstract]

Property and equipment

Property and equipment comprise (in thousands):

	May 31,
	2014			2013
Leasehold improvements	$	1,093		$	1,104
Furniture and fixtures		1,094			1,130
Machinery and equipment		3,801			4,137
Test equipment		3,041			3,040
		9,029			9,411
Less: Accumulated depreciation
and amortization		(8,555	)		(9,110	)
	$	474		$	301