Quarterly report [Sections 13 or 15(d)]

ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative)

v3.25.1
ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Dec. 31, 2023
Product Information [Line Items]        
Net loss $ 1,265,000 $ 2,142,000    
Net cash used in operating activities 584,000 989,000    
Net sales 1,723,000 $ 1,775,000    
Inventory write down 0      
Warranty reserve accrual $ 600,000   $ 600,000 $ 600,000
Sales to Telecommunications Customers [Member] | Revenue from Contract with Customer Benchmark [Member] | Revenue from Rights Concentration Risk [Member]        
Product Information [Line Items]        
Concentration risk 82.00% 71.00%    
Sales To International Customers [Member] | Revenue from Contract with Customer Benchmark [Member] | Revenue from Rights Concentration Risk [Member]        
Product Information [Line Items]        
Concentration risk 18.00% 6.00%    
Largest Customer [Member] | Sales to Telecommunications Customers [Member] | Revenue from Contract with Customer Benchmark [Member] | Customer Concentration Risk [Member]        
Product Information [Line Items]        
Concentration risk 71.00% 49.00%    
Second Largest Customer [Member] | Sales to Telecommunications Customers [Member] | Revenue from Contract with Customer Benchmark [Member] | Customer Concentration Risk [Member]        
Product Information [Line Items]        
Concentration risk 17.00%      
Customer [Member] | Sales to Telecommunications Customers [Member] | Revenue from Contract with Customer Benchmark [Member] | Customer Concentration Risk [Member]        
Product Information [Line Items]        
Concentration risk   25.00%    
Largest Receivable Accounts One [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]        
Product Information [Line Items]        
Concentration risk 74.00%      
Largest Receivable Accounts Two [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]        
Product Information [Line Items]        
Concentration risk 19.00%      
Largest Receivable Accounts [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]        
Product Information [Line Items]        
Concentration risk     82.00%  
Largest Vendors One [Member] | Accounts Payable [Member] | Supplier Concentration Risk [Member]        
Product Information [Line Items]        
Concentration risk 16.00%   18.00%  
Largest Vendors Two [Member] | Accounts Payable [Member] | Customer Concentration Risk [Member]        
Product Information [Line Items]        
Concentration risk 9.00%   13.00%  
Largest Vendors Three [Member] | Accounts Payable [Member] | Customer Concentration Risk [Member]        
Product Information [Line Items]        
Concentration risk 8.00%   8.00%  
International Sales [Member]        
Product Information [Line Items]        
Net sales $ 302,000 $ 99,000