Condensed Consolidated Statement of Stockholders' Equity (Deficiency) (Unaudited) - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance at Jul. 31, 2022	$ 1,114,000	$ 132,079,000	$ (129,284,000)	$ 3,909,000
Balance, shares at Jul. 31, 2022	111,356,473
Share-based compensation expense - stock options		63,000		63,000
Net loss			(993,000)	(993,000)
Share-based compensation expense - restricted stock units		21,000		21,000
Balance at Oct. 31, 2022	$ 1,114,000	132,163,000	(130,277,000)	3,000,000
Balance, shares at Oct. 31, 2022	111,356,473
Balance at Jul. 31, 2023	$ 1,119,000	132,398,000	(133,245,000)	272,000
Balance, shares at Jul. 31, 2023	111,856,473
Share-based compensation expense - stock options		80,000		80,000
Net loss			(735,000)	(735,000)
Balance at Oct. 31, 2023	$ 1,119,000	$ 132,478,000	$ (133,980,000)	$ (383,000)
Balance, shares at Oct. 31, 2023	111,856,473