4. PROPERTY AND EQUIPMENT, NET (Tables)

12 Months Ended

May 31, 2013

Property, Plant and Equipment [Abstract]

Property and equipment

In Thousands, unless otherwise specified

	May 31,
	2013	2012
Leasehold improvements..................	$1,104	$1,107
Furniture and fixtures..................	1,130	1,264
Machinery and equipment.................	4,137	4,303
Test equipment..........................	3,040	2,972
	9,411	9,646
Less: Accumulated depreciation
and amortization......................	(9,110)	(9,136)
	$  301	$  510