Condensed Consolidated Statement of Stockholders' Equity (Deficiency) (Unaudited) - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balances at Jul. 31, 2023	$ 1,119,000	$ 132,398,000	$ (133,245,000)	$ 272,000
Balances, shares at Jul. 31, 2023	111,856,473
Share-based compensation expense - stock options		176,000		176,000
Share-based compensation expense - restricted stock units
Net loss			(2,594,000)	(2,594,000)
Balances at Apr. 30, 2024	$ 1,119,000	132,574,000	(135,839,000)	(2,146,000)
Balances, shares at Apr. 30, 2024	111,856,473
Balances at Jan. 31, 2024	$ 1,119,000	132,542,000	(134,982,000)	(1,321,000)
Balances, shares at Jan. 31, 2024	111,856,473
Share-based compensation expense - stock options		32,000		32,000
Share-based compensation expense - restricted stock units
Net loss			(857,000)	(857,000)
Balances at Apr. 30, 2024	$ 1,119,000	132,574,000	(135,839,000)	(2,146,000)
Balances, shares at Apr. 30, 2024	111,856,473
Balances at Jul. 31, 2024	$ 1,119,000	132,612,000	(136,595,000)	(2,864,000)
Balances, shares at Jul. 31, 2024	111,856,473
Share-based compensation expense - stock options		114,000		114,000
Share-based compensation expense - restricted stock units		3,000		3,000
Net loss			(2,067,000)	(2,067,000)
Balances at Apr. 30, 2025	$ 1,119,000	132,729,000	(138,662,000)	(4,814,000)
Balances, shares at Apr. 30, 2025	111,856,473
Balances at Jan. 31, 2025	$ 1,119,000	132,696,000	(138,082,000)	(4,267,000)
Balances, shares at Jan. 31, 2025	111,856,473
Share-based compensation expense - stock options		30,000		30,000
Share-based compensation expense - restricted stock units		3,000		3,000
Net loss			(580,000)	(580,000)
Balances at Apr. 30, 2025	$ 1,119,000	$ 132,729,000	$ (138,662,000)	$ (4,814,000)
Balances, shares at Apr. 30, 2025	111,856,473