Consolidated Statements of Operations - USD ($)	12 Months Ended
	Jul. 31, 2024	Jul. 31, 2023
Total revenue	$ 1,963,000	$ 1,877,000
Cost of goods sold	811,000	906,000
Gross Profit	1,152,000	971,000
Operating costs and expenses
Selling, general and administrative	3,981,000	4,302,000
Research and development	302,000	297,000
Impairment of fixed assets	60,000	315,000
Total operating costs and expenses	4,343,000	4,914,000
Loss from operations	(3,191,000)	(3,943,000)
Other income (expense)
Interest expense, net	(155,000)	(14,000)
Other income (expense), net	(4,000)	(4,000)
Total other income (expense)	(159,000)	(18,000)
Net loss	$ (3,350,000)	$ (3,961,000)
Basic net loss per share	$ (0.03)	$ (0.04)
Diluted net loss per share	$ (0.03)	$ (0.04)
Shares used in computing basic net loss per share	111,856,473	111,404,418
Shares used in computing diluted net loss per share	111,856,473	111,404,418
Product [Member]
Total revenue	$ 1,955,000	$ 1,871,000
Royalty [Member]
Total revenue	$ 8,000	$ 6,000