Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Nov. 30, 2024	Nov. 30, 2023
Cash flows from operating activities:
Net loss	$ (2,266,000)	$ (2,639,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	43,000	39,000
Provision for allowance for credit losses	8,000	(7,000)
Inventory reserve	2,000	(174,000)
Share-based compensation	232,000	292,000
Amortization of right-of-use asset	154,000	144,000
Changes in assets and liabilities:
Accounts receivable	(387,000)	(338,000)
Inventories	585,000	390,000
Prepaid expenses and other	(9,000)	77,000
Other assets	6,000	(17,000)
Accounts payable and accrued expenses	(290,000)	(110,000)
Accrued compensation	(54,000)	(28,000)
Reduction in lease liabilities	(159,000)	(145,000)
Net cash used in operating activities	(2,135,000)	(2,516,000)
Cash flows from investing activities:
Purchases of property and equipment		(27,000)
Expenditures related to intangibles	(33,000)	(48,000)
Net cash used in investing activities	(33,000)	(75,000)
Cash flows from financing activities:
Gross proceeds from sale of common stock	392,000
Costs from sale of common stock	(36,000)
Deferred offering costs	24,000
Net cash provided by financing activities	380,000
Effect of exchange rate changes on cash	(10,000)	6,000
Net decrease in cash and cash equivalents	(1,798,000)	(2,585,000)
Cash and cash equivalents at beginning of year	4,170,000	9,719,000
Cash and cash equivalents at end of period	2,372,000	7,134,000
Cash paid during the period for:
Income taxes		30,000
Non-cash investing and financing activities:
Stock Issuance Receivable	$ 211,000