Quarterly report pursuant to Section 13 or 15(d)

ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative)

v3.24.3
ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2022
Product Information [Line Items]                
Net loss $ (13,000) $ 1,844,000 $ 1,628,000 $ 3,393,000        
Cash 498,000   498,000   $ 549,000      
Borrowing capacity 1,432,000   1,432,000          
Stockholders equity 11,561,000 14,788,000 11,561,000 14,788,000 13,189,000 $ 11,548,000 $ 16,632,000 $ 18,181,000
Working capital 10,132,000   10,132,000          
Net sales 4,914,000 $ 1,911,000 11,348,000 $ 11,688,000        
Inventory write down 0   0   0      
Warranty reserve accrual $ 600,000   $ 600,000   $ 600,000     $ 600,000
Revenue from Contract with Customer Benchmark [Member] | Revenue from Rights Concentration Risk [Member] | Largest Customer One [Member]                
Product Information [Line Items]                
Concentration risk 46.00% 65.00% 44.00% 52.00%        
Revenue from Contract with Customer Benchmark [Member] | Revenue from Rights Concentration Risk [Member] | Largest Customer Two [Member]                
Product Information [Line Items]                
Concentration risk 18.00%   17.00% 22.00%        
Revenue from Contract with Customer Benchmark [Member] | Revenue from Rights Concentration Risk [Member] | Largest Customer Three [Member]                
Product Information [Line Items]                
Concentration risk 12.00%              
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Largest Receivable Accounts One [Member]                
Product Information [Line Items]                
Concentration risk     77.00%   69.00%      
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Largest Receivable Accounts Two [Member]                
Product Information [Line Items]                
Concentration risk     10.00%   16.00%      
Accounts Payable [Member] | Customer Concentration Risk [Member] | Largest Vendors Two [Member]                
Product Information [Line Items]                
Concentration risk     12.00%   10.00%      
Accounts Payable [Member] | Customer Concentration Risk [Member] | Largest Vendors Three [Member]                
Product Information [Line Items]                
Concentration risk     6.00%   5.00%      
Accounts Payable [Member] | Supplier Concentration Risk [Member] | Largest Vendors One [Member]                
Product Information [Line Items]                
Concentration risk     36.00%   30.00%      
Sales to Telecommunications Customers [Member] | Revenue from Contract with Customer Benchmark [Member] | Revenue from Rights Concentration Risk [Member]                
Product Information [Line Items]                
Concentration risk 91.00% 96.00% 90.00% 96.00%        
Sales To International Customers [Member] | Revenue from Contract with Customer Benchmark [Member] | Revenue from Rights Concentration Risk [Member]                
Product Information [Line Items]                
Concentration risk 10.00% 1.00% 15.00% 24.00%        
International Sales [Member]                
Product Information [Line Items]                
Net sales $ 470,000 $ 28,000 $ 1,740,000 $ 2,794,000