Condensed Consolidated Comprehensive Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Oct. 31, 2011	Oct. 31, 2010
Revenues
Product sales, net	$ 32	$ 124
Royalties	32	48
Total revenues	64	172
Operating costs and expenses
Cost of sales	9	45
Selling, general and administrative	173	462
Research and development	7	11
Total operating costs and expenses	189	518
Operating loss	(125)	(346)
Other income (expense)
Interest expense, net	(34)	(19)
Other income (expense)	(22)	11
Total other income (expense)	(56)	(8)
Net loss	(181)	(354)
Other comprehensive income (loss)
Foreign currency translation adjustment	19	(6)
Comprehensive net loss	(162)	(360)
Net loss attributable to common shareholders	$ (181)	$ (354)
Weighted average number of common shares outstanding - basic and diluted	68,922	68,817
Basic and diluted loss per common share	$ 0.00	$ (0.01)