CONSOLIDATED STATEMENTS OF OPERATIONS (in thousands, except for share and per share data) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	May 31, 2014	May 31, 2013
Revenues {1}
Products	$ 1,138	$ 1,284
Services	3,861	4,784
Royalties on sale of patents	10	290
Total revenues	5,009	6,358
Cost of revenues:
Products (1)	366	141
Services (1)	1,201	1,234
Total cost of revenues	1,567	1,375
Gross margin	3,442	4,983
Research and development expenses	1,171	1,087
Selling, general and administrative expenses	3,465	3,186
Gain on sale of product line	(649)
Operating income (loss)	(545)	710
Interest expense	251	342
Other income, net	(50)	(7)
Income (loss) before income taxes	(746)	375
Provision for income taxes	2	15
Net income (loss)	$ (748)	$ 360
Basic and diluted net income (loss) per share	$ (0.85)	$ 0.35
Weighted average common shares outstanding-basic	876,860	1,018,709
Weighted average common shares outstanding-diluted	876,860	1,019,812