Annual report [Section 13 and 15(d), not S-K Item 405]

ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative)

v3.25.1
ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative) - USD ($)
 12 Months Ended
Nov. 18, 2024
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Product Information [Line Items]        
Net loss   $ 4,677,000 $ 6,548,000  
Net Cash Provided by (Used in) Operating Activities   536,000 3,430,000  
Cash   498,000 549,000  
Borrowing capacity   654,000    
Working capital   7,037,000    
Reverse stock split description 1:7 reverse stock split      
Net sales   13,970,000 15,293,000  
Warranty reserve accrual   600,000 600,000 $ 600,000
FDIC insurance limit   250,000    
Inventory write down   900,000 450,000  
Research and development cost   $ 771,000 $ 1,222,000  
Purchase options   20,002 20,002 20,002
Sales to Telecommunications Customers [Member] | Revenue from Contract with Customer Benchmark [Member] | Revenue from Rights Concentration Risk [Member]        
Product Information [Line Items]        
Concentration risk   88.00% 95.00%  
Sales To International Customers [Member] | Revenue from Contract with Customer Benchmark [Member] | Revenue from Rights Concentration Risk [Member]        
Product Information [Line Items]        
Concentration risk   13.00% 21.00%  
Largest Customer One [Member] | Sales to Telecommunications Customers [Member] | Revenue from Contract with Customer Benchmark [Member] | Customer Concentration Risk [Member]        
Product Information [Line Items]        
Concentration risk   48.00% 50.00%  
Largest Customer Two [Member] | Sales to Telecommunications Customers [Member] | Revenue from Contract with Customer Benchmark [Member] | Customer Concentration Risk [Member]        
Product Information [Line Items]        
Concentration risk   14.00% 18.00%  
Largest Receivable Accounts [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]        
Product Information [Line Items]        
Concentration risk   82.00%    
Largest Receivable Accounts One [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]        
Product Information [Line Items]        
Concentration risk     69.00%  
Largest Receivable Accounts Two [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]        
Product Information [Line Items]        
Concentration risk     16.00%  
Largest Vendors One [Member] | Accounts Payable [Member] | Supplier Concentration Risk [Member]        
Product Information [Line Items]        
Concentration risk   18.00% 30.00%  
Largest Vendors Two [Member] | Accounts Payable [Member] | Customer Concentration Risk [Member]        
Product Information [Line Items]        
Concentration risk   13.00% 10.00%  
Largest Vendors Three [Member] | Accounts Payable [Member] | Customer Concentration Risk [Member]        
Product Information [Line Items]        
Concentration risk   8.00% 5.00%  
International Sales [Member]        
Product Information [Line Items]        
Net sales   $ 1,862,000 $ 3,215,000  
AUSTRALIA        
Product Information [Line Items]        
Cash   2,000 7,000  
RON [Member]        
Product Information [Line Items]        
Cash   $ 12,000 $ 16,000