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 6 Months Ended 12 Months Ended
Jun. 30, 2021
USD ($)
Jun. 30, 2020
Jun. 30, 2021
USD ($)
Segment
Jun. 30, 2020
Dec. 31, 2020
USD ($)
Product Information [Line Items]          
Cumulative inventory write-downs     $ 3,745   $ 4,000
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 92.00% 97.00% 92.00% 96.00%  
Revenue Benchmark [Member] | Sales to Telecommunications Customers [Member] | Largest Customer One [Member] | Customer Concentration Risk [Member]          
Product Information [Line Items]          
Concentration risk 77.00% 60.00% 70.00% 67.00%  
Revenue Benchmark [Member] | Sales to Telecommunications Customers [Member] | Largest Customer Two [Member] | Customer Concentration Risk [Member]          
Product Information [Line Items]          
Concentration risk   16.00%   14.00%  
Accounts Receivable [Member] | Largest Customer One [Member] | Customer Concentration Risk [Member]          
Product Information [Line Items]          
Concentration risk     77.00%   87.00%
Accounts Payable [Member] | Largest Vendors Ones [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     8.00%   9.00%
Accounts Payable [Member] | Largest Vendors Three [Member] | Supplier Concentration Risk [Member]          
Product Information [Line Items]          
Concentration risk     5.00%   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 $ 9   $ 9   $ 10
Romania, New Lei          
Product Information [Line Items]          
Cash $ 26   $ 26   $ 28
Non-US [Member] | Revenue Benchmark [Member] | Sales to Telecommunications Customers [Member] | Revenue from Rights Concentration Risk [Member]          
Product Information [Line Items]          
Concentration risk 2.00% 7.00% 12.00% 7.00%  
Non-US [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]          
Product Information [Line Items]          
Concentration risk     11.00%