Condensed Consolidated Balance Sheets (Unaudited) - USD ($)	Nov. 30, 2025	May 31, 2025
Current Assets:
Cash and cash equivalents	$ 2,543,000	$ 2,399,000
Accounts receivable, net	947,000	731,000
Inventories, net	1,524,000	1,490,000
Prepaid expenses and other	177,000	255,000
Total current assets	5,191,000	4,875,000
Property and equipment, net of accumulated depreciation and amortization	105,000	135,000
Right-of-use assets, net of accumulated amortization of $1,388,000 and $1,223,000 as of November 30, 2025 and May 31, 2025, respectively	264,000	429,000
Investments	165,000	165,000
Intangible assets, net of accumulated amortization of $79,000 and $69,000 as of November 30, 2025 and May 31, 2025, respectively	219,000	228,000
Other assets	90,000	113,000
Total Assets	6,034,000	5,945,000
Current Liabilities:
Accounts payable and accrued expenses	740,000	672,000
Accrued compensation	545,000	655,000
Advances from customers	30,000	55,000
Lease liabilities, current portion	284,000	358,000
Total current liabilities	1,599,000	1,740,000
Lease liabilities, net of current portion		100,000
Total Liabilities	1,599,000	1,840,000
Commitments and contingencies (Note 6)
Shareholders’ Equity:
Preferred stock, value
Common stock, $0.08 par value, 25,000,000 shares authorized, 2,947,966 and 2,546,216 issued and outstanding at November 30, 2025 and May 31, 2025, respectively	236,000	203,000
Additional paid-in-capital	58,788,000	57,175,000
Accumulated other comprehensive loss	(103,000)	(105,000)
Accumulated deficit	(54,486,000)	(53,168,000)
Total Shareholders’ Equity	4,435,000	4,105,000
Total Liabilities and Shareholders’ Equity	6,034,000	5,945,000
Series A Preferred Stock [Member]
Shareholders’ Equity:
Preferred stock, value