CONSOLIDATED COMPREHENSIVE STATEMENTS OF OPERATIONS (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Jul. 31, 2014	Jul. 31, 2013
Revenues
Product sales, net	$ 12	$ 93
Royalties	1	16
Total revenues	13	109
Operating costs and expenses
Cost of sales	6	41
Selling, general and administrative	319	444
Research and development	1	3
Total operating costs and expenses	326	488
Operating loss	(313)	(379)
Other expense
Interest expense, net	(132)	(128)
Other expense	2	0
Total other expense	(130)	(128)
Net loss	$ (443)	$ (507)
Weighted average number of common shares outstanding - basic and diluted	78,942	72,052
Basic and diluted loss per common share	$ (0.01)	$ (0.01)