v3.26.3
SIGNIFICANT ACCOUNTING POLICIES (Details Narrative)
3 Months Ended 12 Months Ended
Sep. 24, 2026
USD ($)
shares
May 29, 2026
USD ($)
May 10, 2024
USD ($)
Sep. 28, 2023
USD ($)
Aug. 31, 2026
USD ($)
Segment
$ / shares
shares
Aug. 31, 2025
USD ($)
shares
May 31, 2026
USD ($)
shares
May 31, 2024
USD ($)
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]                
Accumulated deficit         $ 58,175,000   $ 56,943,000  
Cash and cash equivalents         2,733,000   1,308,000  
Working capital         2,572,000   1,535,000  
Shelf registration statement maximum authorized common stock issuance value.     $ 5,500,000 $ 20,000,000        
Deferred offering costs               $ 81,000
Proceeds from issuance of common stock         2,231,000 $ 939,000    
Revenues         1,265,000 1,380,000    
Total gross receivables         938,000   823,000  
Accounts receivable, allowance for credit loss         41,000   38,000  
Prepaid expenses and other current assets         145,000   216,000  
Inventory reserves         370,000   394,000  
Amortization expense         5,000 5,000    
Impairment of intangible assets         0 0    
Carrying amount of investment         500,000   500,000  
Unrealized gain             335,000  
Cash             500,000  
Cumulative upward adjustments         335,000      
Cumulative impairment or downward adjustments         0      
Share-based compensation related to stock options         40,000 74,000    
Share-based compensation expense related to RSU         134,000 133,000    
Advances from domestic customers         47,000   $ 83,000  
Research and development costs         206,000 212,000    
Income tax expense         6,000 3,000    
Advertising costs         $ 8,000 $ 9,000    
Stock options, shares | shares         429,383 413,146 454,384  
Restricted stock awards, shares | shares         168,437 96,875 168,437  
Number of reportable segments | Segment         1      
Number of operating segments | Segment         1      
Restricted Stock Units (RSUs) [Member]                
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]                
Share-based compensation expense related to RSU         $ 73,000 $ 59,000    
Consulting Agreement [Member]                
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]                
Shares issued for consulting services | shares         10,000      
Common stock issued for consultant services         $ 21,000      
Chief Executive Officer [Member]                
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]                
Proceeds from Sale of Equity Method Investments   $ 500,000            
Polish Distributor [Member]                
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]                
Carrying amount of investment         $ 165,000      
Equity method investment, ownership percentage         6.00%   8.00%  
Marketing and Distribution Rights [Member]                
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]                
Intangible assets estimated useful lives         18 years      
Purchased Technology Rights [Member]                
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]                
Intangible assets estimated useful lives         10 years      
Patents [Member]                
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]                
Intangible assets estimated useful lives         15 years      
Property, Plant and Equipment [Member]                
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]                
Depreciation and amortization expense         $ 10,000 15,000    
Minimum [Member]                
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]                
Property and equipment estimated useful lives         5 years      
Carrying amount of investment             $ 165,000  
Maximum [Member]                
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]                
Property and equipment estimated useful lives         10 years      
Carrying amount of investment             $ 500,000  
Asia [Member]                
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]                
Revenues         $ 467,000 $ 670,000    
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | One Key Customers [Member] | Asia [Member]                
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]                
Concentration risk, percentage         36.00% 48.00%    
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Three Key Customers [Member]                
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]                
Concentration risk, percentage         48.00%   59.00%  
Cost of Goods and Service, Product and Service Benchmark [Member] | Supplier Concentration Risk [Member] | One Key Vendor [Member]                
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]                
Concentration risk, percentage           24.00%    
Cost of Goods and Service, Product and Service Benchmark [Member] | Supplier Concentration Risk [Member] | One Vendor [Member]                
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]                
Concentration risk, percentage           10.00%    
Accounts Payable [Member] | Supplier Concentration Risk [Member] | One Vendor [Member]                
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]                
Concentration risk, percentage         20.00%      
Accounts Payable [Member] | Supplier Concentration Risk [Member] | Two Vendors [Member]                
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]                
Concentration risk, percentage             23.00%  
ATM Offering [Member]                
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]                
Deferred offering costs         $ 111,000      
Stock issued during period, shares, new issues | shares         1,393,705      
Sale of stock, price per share | $ / shares         $ 1.60      
Sale of stock, consideration received on transaction         $ 2,231,000      
Proceeds from issuance of common stock         2,120,000      
Legal, accounting, and other fees         $ 111,000      
Subsequent Event [Member] | Consulting Agreement [Member]                
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]                
Shares issued for consulting services | shares 10,000              
Common Stock [Member]                
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]                
Stock issued during period, shares, new issues | shares           258,569    
Common Stock [Member] | Subsequent Event [Member]                
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]                
Aggregate offering price $ 250,000,000              
Stock issued during period, shares, new issues | shares 1,403,705