Condensed Consolidated Balance Sheets (Unaudited) - USD ($)	Aug. 31, 2025	May 31, 2025
Current Assets:
Cash and cash equivalents	$ 3,053,000	$ 2,399,000
Accounts receivable, net	1,205,000	731,000
Inventories, net	1,473,000	1,490,000
Prepaid expenses and other	168,000	255,000
Total current assets	5,899,000	4,875,000
Property and equipment, net of accumulated depreciation and amortization	120,000	135,000
Right-of-use assets, net of accumulated amortization of $1,305,000 and $1,223,000 as of August 31, 2025 and May 31, 2025, respectively	347,000	429,000
Investments	165,000	165,000
Intangible assets, net of accumulated amortization of $74,000 and $69,000 as of August 31, 2025 and May 31, 2025, respectively	223,000	228,000
Other assets	100,000	113,000
Total Assets	6,854,000	5,945,000
Current Liabilities:
Accounts payable and accrued expenses	681,000	672,000
Accrued compensation	591,000	655,000
Advances from customers	54,000	55,000
Lease liabilities, current portion	367,000	358,000
Total current liabilities	1,693,000	1,740,000
Lease liabilities, net of current portion	6,000	100,000
Total Liabilities	1,699,000	1,840,000
Commitments and contingencies (Note 6)
Shareholders’ Equity:
Preferred stock, value
Common stock, $0.08 par value, 25,000,000 shares authorized, 2,815,410 and 2,546,216 issued and outstanding at August 31, 2025 and May 31, 2025, respectively	225,000	203,000
Additional paid-in capital	58,198,000	57,175,000
Accumulated other comprehensive loss	(102,000)	(105,000)
Accumulated deficit	(53,166,000)	(53,168,000)
Total Shareholders’ Equity	5,155,000	4,105,000
Total Liabilities and Shareholders’ Equity	6,854,000	5,945,000
Series A Preferred Stock [Member]
Shareholders’ Equity:
Preferred stock, value