Liquidity and Going Concern (Details Narrative) - USD ($)	3 Months Ended		6 Months Ended
	Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2024	Jan. 31, 2023	Oct. 31, 2023	Jul. 31, 2023	Oct. 31, 2022	Jul. 31, 2022
Liquidity And Going Concern
Stockholders deficiency	$ 1,321,000	$ (2,067,000)	$ 1,321,000	$ (2,067,000)	$ 383,000	$ (272,000)	$ (3,000,000)	$ (3,909,000)
Net loss	1,002,000	1,060,000	1,737,000	2,053,000
Revenue	326,000	397,000	1,048,000	868,000
Net cash provided by (used) in operating activities			1,323,000	1,869,000
Cash and cash equivalents	$ 557,000	$ 1,485,000	$ 557,000	$ 1,485,000		$ 1,095,000