Quarterly report pursuant to Section 13 or 15(d)

ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative)

v3.21.2
ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2021
USD ($)
Sep. 30, 2020
USD ($)
Sep. 30, 2021
USD ($)
Segment
Sep. 30, 2020
USD ($)
Dec. 31, 2020
USD ($)
Product Information [Line Items]          
Cumulative inventory write-downs $ 0 $ 2,400 $ 0 $ 2,400  
Number of operating segment | Segment     1    
Revenue Benchmark [Member] | Sales to Telecommunications Customers [Member] | Revenue from Rights Concentration Risk [Member]          
Product Information [Line Items]          
Concentration risk 85.00% 99.00% 90.00% 96.00%  
Revenue Benchmark [Member] | Sales to Telecommunications Customers [Member] | Largest Customer One [Member] | Customer Concentration Risk [Member]          
Product Information [Line Items]          
Concentration risk 62.00% 41.00% 67.00% 57.00%  
Revenue Benchmark [Member] | Sales to Telecommunications Customers [Member] | Largest Customer Two [Member] | Customer Concentration Risk [Member]          
Product Information [Line Items]          
Concentration risk   27.00%   13.00%  
Revenue Benchmark [Member] | Sales to Telecommunications Customers [Member] | Largest Customer Three [Member] | Customer Concentration Risk [Member]          
Product Information [Line Items]          
Concentration risk   23.00%   12.00%  
Revenue Benchmark [Member] | Sales to Telecommunications Customers [Member] | Largest Customer Four [Member] | Customer Concentration Risk [Member]          
Product Information [Line Items]          
Concentration risk       11.00%  
Accounts Receivable [Member] | Largest Customer One [Member] | Customer Concentration Risk [Member]          
Product Information [Line Items]          
Concentration risk     73.00%   87.00%
Accounts Receivable [Member] | Largest Customer Two [Member] | Customer Concentration Risk [Member]          
Product Information [Line Items]          
Concentration risk     10.00%    
Accounts Payable [Member] | Largest Vendors One [Member] | Supplier Concentration Risk [Member]          
Product Information [Line Items]          
Concentration risk     13.00%    
Accounts Payable [Member] | Largest Vendors Two [Member] | Supplier Concentration Risk [Member]          
Product Information [Line Items]          
Concentration risk     10.00%   9.00%
Accounts Payable [Member] | Largest Vendors Three [Member] | Supplier Concentration Risk [Member]          
Product Information [Line Items]          
Concentration risk     8.00%   8.00%
Accounts Payable [Member] | Largest Vendors One [Member] | Supplier Concentration Risk [Member]          
Product Information [Line Items]          
Concentration risk         10.00%
AUSTRALIA          
Product Information [Line Items]          
Cash $ 12   $ 12   $ 10
RON [Member]          
Product Information [Line Items]          
Cash $ 20   $ 20   $ 28
Non-US [Member] | Revenue Benchmark [Member] | Sales to Telecommunications Customers [Member] | Revenue from Rights Concentration Risk [Member]          
Product Information [Line Items]          
Concentration risk 7.00% 23.00% 10.00% 13.00%