Condensed Consolidated Balance Sheets - USD ($)	Apr. 30, 2025	Jul. 31, 2024
Current assets
Cash and cash equivalents	$ 540,000	$ 349,000
Accounts receivable	287,000	298,000
Inventories, net	131,000	56,000
Restricted cash	75,000	75,000
Prepaid expenses	13,000	27,000
Total current assets	1,046,000	805,000
Property, plant and equipment, net	11,000	13,000
Total assets	1,057,000	818,000
Current liabilities
Accounts payable	799,000	601,000
Accrued liabilities	173,000	132,000
Total current liabilities	972,000	733,000
Long-term liabilities
Total liabilities	5,871,000	3,682,000
Commitments and contingencies
Stockholders’ deficiency
Preferred stock, $0.01 par value: 5,000,000 shares authorized, no shares issued and outstanding
Common stock, $0.01 par value: 200,000,000 shares authorized, 111,856,473 shares issued and outstanding at April 30, 2025, and July 31, 2024	1,119,000	1,119,000
Additional paid-in capital	132,729,000	132,612,000
Accumulated deficit	(138,662,000)	(136,595,000)
Total stockholders’ deficiency	(4,814,000)	(2,864,000)
Total liabilities and stockholders’ deficiency	1,057,000	818,000
Related Party [Member]
Long-term liabilities
Convertible notes payable to related parties	$ 4,899,000	$ 2,949,000