CONSOLIDATED COMPREHENSIVE STATEMENTS OF OPERATIONS (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Jul. 31, 2012	Jul. 31, 2011
Revenues
Product sales, net	$ 78	$ 505
Royalties	172	238
Total revenues	250	743
Operating costs and expenses
Cost of sales	25	172
Selling, general and administrative	599	1,365
Research and development	38	38
Impairment loss	0	430
Total operating costs and expenses	662	2,005
Operating loss	(412)	(1,262)
Other income (expense)
Interest expense, net	(115)	(106)
Other expense	(27)	(24)
Total other expense	(142)	(130)
Net loss	(554)	(1,392)
Foreign currency translation adjustment	26	(37)
Comprehensive net loss	(528)	(1,429)
Net loss attributable to common shareholders and loss per common share:
Net loss	(554)	(1,392)
Net loss attributable to common shareholders	$ (554)	$ (1,392)
Weighted average number of common shares outstanding - basic and diluted	68,922	68,892
Basic and diluted loss per common share	$ (0.01)	$ (0.02)