7. SEGMENT INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Aug. 31, 2013	Aug. 31, 2012	May 31, 2013
Net sales	$ 3,752	$ 4,832
Property and equipment, net	246	439	301	[1]
US
Net sales	3,605	4,668
Property and equipment, net	202	369
Asia
Net sales	53	34
Property and equipment, net	44	69
Europe
Net sales	94	130
Property and equipment, net	$ 0	$ 1

[1] The condensed consolidated balance sheet at May 31, 2013 has been derived from the audited consolidated financial statements at that date.