SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative) - USD ($)					12 Months Ended
	May 10, 2024	Sep. 28, 2023	Mar. 07, 2023	Jan. 22, 2021	May 31, 2024	May 10, 2024	May 31, 2023
Product Information [Line Items]
Accumulated deficit					$ 48,195,000		$ 42,217,000
Cash and cash equivalents					4,170,000		9,719,000
Working capital					5,527,000		(10,852,000)
Shelf registration statement maximum authorized common stock issuance value	$ 5,500,000	$ 20,000,000		$ 15,000,000
Proceeds from issuance of common stock							10,014,000
Sale of stock expenses			$ 700,000
Deferred Offering Costs	$ 81,000					$ 81,000
Average trading volume description						The average trading volume of our stock over the last three full calendar months is approximately 229,000 shares per day and the high and low trading price of our stock during the same period of time was $1.25 and $0.50, respectively.
Working capital					(5,527,000)		10,852,000
Revenues					5,415,000		5,339,000
Other receivables, gross, current					966,000		751,000
Inventory, gross					2,843,000		2,728,000
Property, plant and equipment, net					$ 201,000		213,000
Threshold period past due for write-off of trade accounts receivable					90 days
Allowance accounts receivable, credit loss					$ 19,000		29,000
Prepaid expense and other assets					238,000		300,000
Inventory reserves					467,000		672,000
Amortization of intangible assets					18,000		18,000
Intangible asset impairment charges					0		0
Investments					165,000		165,000
Share-based payment arrangement, expense					837,000		1,185,000
Proceeds from customers					85,000
Research and development expense					1,491,000		1,584,000
Deferred tax assets, valuation allowance					10,369,000		8,940,000
Deferred tax assets, net					10,369,000		8,940,000
Advertising expense					$ 101,000		$ 156,000
Share-Based Payment Arrangement, Option [Member]
Product Information [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount (in shares)					3,479,616		2,342,616
Polish Distributor [Member]
Product Information [Line Items]
Investments					$ 165,000
Equity method investment, ownership percentage					6.00%
Purchased Technology Rights [Member]
Product Information [Line Items]
Finite-lived intangible asset, useful life					10 years
Patents [Member]
Product Information [Line Items]
Finite-lived intangible asset, useful life					15 years
Property, Plant and Equipment [Member]
Product Information [Line Items]
Depreciation, depletion and amortization					$ 63,000		$ 66,000
MEXICO
Product Information [Line Items]
Inventory, gross					537,000		626,000
Property, plant and equipment, net					$ 14,000		$ 17,000
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Distributor One [Member]
Product Information [Line Items]
Concentration risk, percentage					33.00%		35.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Four Distributor [Member]
Product Information [Line Items]
Concentration risk, percentage					64.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | One Distributor [Member]
Product Information [Line Items]
Concentration risk, percentage							36.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Distributors in Asia [Member]
Product Information [Line Items]
Concentration risk, percentage							37.00%
Cost of Goods and Service, Product and Service Benchmark [Member] | Supplier Concentration Risk [Member] | One Vendor [Member]
Product Information [Line Items]
Concentration risk, percentage					16.00%
Minimum [Member]
Product Information [Line Items]
Property, plant and equipment, useful life					5 years
Maximum [Member]
Product Information [Line Items]
Property, plant and equipment, useful life					10 years
ATM Agreement [Member]
Product Information [Line Items]
Sale of stock, number of shares issued in transaction							573,889
Sale of stock, consideration received on transaction					$ 2,014,000
Proceeds from issuance of common stock			7,300,000				$ 1,961,000
Sale of stock expenses			$ 700,000				$ 53,000
Net proceeds from ATM (in Shares)			3,333,333
Share price			$ 2.40
ATM Agreement [Member] | Minimum [Member]
Product Information [Line Items]
Sale of stock, price per share							$ 3.15
ATM Agreement [Member] | Maximum [Member]
Product Information [Line Items]
Sale of stock, price per share							$ 4.26