Quarterly report pursuant to Section 13 or 15(d)

ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative)

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ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Jun. 30, 2023
Jun. 30, 2022
Dec. 31, 2021
Product Information [Line Items]                
Net loss $ 1,844 $ 2,381 $ 3,393 $ 4,240        
Net cash used in operations     3,084 4,532        
Cash and cash equivalents 296   296   $ 211      
Line of credit 119   119          
Stockholders equity 14,788 19,525 14,788 19,525 18,181 $ 16,632 $ 21,391 $ 23,250
Working capital 13,316   13,316          
Net sales 1,911 $ 1,707 11,688 $ 9,690        
Warranty reserve accrual $ 600   $ 600   $ 600     $ 600
Sales to Telecommunications Customers [Member] | Revenue from Contract with Customer Benchmark [Member] | Revenue from Rights Concentration Risk [Member]                
Product Information [Line Items]                
Concentration risk 96.00% 90.00% 96.00% 97.00%        
Largest Customer One [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]                
Product Information [Line Items]                
Concentration risk     79.00%   74.00%      
Largest Customer Two [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]                
Product Information [Line Items]                
Concentration risk     10.00%   15.00%      
Largest Vendor One [Member] | Accounts Payable [Member] | Supplier Concentration Risk [Member]                
Product Information [Line Items]                
Concentration risk     34.00%   51.00%      
Largest Vendor Two [Member] | Accounts Payable [Member] | Supplier Concentration Risk [Member]                
Product Information [Line Items]                
Concentration risk     13.00%   3.00%      
Largest Vendor Three [Member] | Accounts Payable [Member] | Supplier Concentration Risk [Member]                
Product Information [Line Items]                
Concentration risk     6.00%   3.00%      
Australia, Dollars                
Product Information [Line Items]                
Cash $ 14   $ 14   $ 8      
Romania, New Lei                
Product Information [Line Items]                
Cash 1   1   $ 23      
International Sales [Member]                
Product Information [Line Items]                
Net sales 28 $ 117 2,794 $ 230        
UNITED STATES                
Product Information [Line Items]                
Net sales $ 1,883 $ 1,590 $ 8,894 $ 9,460        
UNITED STATES | 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 65.00%   52.00% 88.00%        
Non-US [Member] | Sales to Telecommunications Customers [Member] | Revenue from Contract with Customer Benchmark [Member] | Revenue from Rights Concentration Risk [Member]                
Product Information [Line Items]                
Concentration risk 1.00% 7.00% 24.00% 2.00%        
Non-US [Member] | 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 87.00%   22.00%