CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS (UNAUDITED) (USD $)	3 Months Ended		6 Months Ended
	Nov. 30, 2012	Nov. 30, 2011	Nov. 30, 2012	Nov. 30, 2011
Revenue:
Products	$ 478	$ 333	$ 693	$ 636
Services	1,194	1,372	2,359	2,633
Royalties from sale of patents	100	0	290	0
Total revenue	1,772	1,705	3,342	3,269
Cost of revenue:
Products,	24	8	49	16
Services,	323	344	631	684
Total cost of revenue	347	352	680	700
Gross margin	1,425	1,353	2,662	2,569
Research and development expenses	323	337	567	720
Selling, general and administrative expenses	789	718	1,547	1,427
Operating income	313	298	548	422
Interest expense	69	85	134	176
Other (income) expense	(8)	26	(11)	6
Net income	$ 252	$ 187	$ 425	$ 240
Basic and diluted net income per share:	$ 0.25	$ 0.19	$ 0.43	$ 0.24
Weighted average common shares outstanding-basic	995,468	995,135	995,295	995,135
Weighted average common shares outstanding-diluted	997,751	995,135	996,572	995,135