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SIGNIFICANT CUSTOMERS, CONCENTRATION OF CREDIT RISK AND GEOGRAPHIC INFORMATION (Details)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2017
USD ($)
Jun. 30, 2016
USD ($)
Jun. 30, 2017
USD ($)
segment
customer
Jun. 30, 2016
USD ($)
Dec. 31, 2016
USD ($)
customer
Significant Customers, Concentration of Credit Risk and Geographic Information          
Number of operating segments | segment     1    
Revenue, net $ 3,264 $ 3,054 $ 6,148 $ 5,859  
Allowance for doubtful accounts $ 0   $ 0   $ 0
Net revenue | Customer Concentration Risk | Customer A          
Significant Customers, Concentration of Credit Risk and Geographic Information          
Concentration risk (as a percent) 25.00% 20.00% 21.00% 20.00%  
Net revenue | Customer Concentration Risk | Customer B          
Significant Customers, Concentration of Credit Risk and Geographic Information          
Concentration risk (as a percent) 15.00% 12.00% 15.00% 10.00%  
Net revenue | Customer Concentration Risk | Customer C          
Significant Customers, Concentration of Credit Risk and Geographic Information          
Concentration risk (as a percent) 11.00% 12.00% 11.00% 11.00%  
Net revenue | Customer Concentration Risk | Customer D          
Significant Customers, Concentration of Credit Risk and Geographic Information          
Concentration risk (as a percent)   14.00%   13.00%  
Net revenue | Customer Concentration Risk | Customer E          
Significant Customers, Concentration of Credit Risk and Geographic Information          
Concentration risk (as a percent)   10.00%   10.00%  
Net revenue | Geographic Concentration Risk          
Significant Customers, Concentration of Credit Risk and Geographic Information          
Revenue, net $ 3,264 $ 3,054 $ 6,148 $ 5,859  
Net revenue | Geographic Concentration Risk | United states          
Significant Customers, Concentration of Credit Risk and Geographic Information          
Revenue, net 1,763 1,913 2,989 3,492  
Net revenue | Geographic Concentration Risk | Asia and Middle East          
Significant Customers, Concentration of Credit Risk and Geographic Information          
Revenue, net 1,167 632 2,324 1,317  
Net revenue | Geographic Concentration Risk | Europe and other          
Significant Customers, Concentration of Credit Risk and Geographic Information          
Revenue, net 334 $ 509 $ 835 $ 1,050  
Accounts receivable | Credit Concentration Risk          
Significant Customers, Concentration of Credit Risk and Geographic Information          
Number of customers | customer     2   2
Accounts receivable | Credit Concentration Risk | Customer One          
Significant Customers, Concentration of Credit Risk and Geographic Information          
Concentration risk (as a percent)     42.00%   44.00%
Accounts receivable | Credit Concentration Risk | Customer Two          
Significant Customers, Concentration of Credit Risk and Geographic Information          
Concentration risk (as a percent)     25.00%   15.00%
Assets | Geographic Concentration Risk          
Significant Customers, Concentration of Credit Risk and Geographic Information          
Total long-lived assets 328   $ 328   $ 354
Assets | Geographic Concentration Risk | United states          
Significant Customers, Concentration of Credit Risk and Geographic Information          
Total long-lived assets 97   97   87
Assets | Geographic Concentration Risk | Asia          
Significant Customers, Concentration of Credit Risk and Geographic Information          
Total long-lived assets $ 231   $ 231   $ 267
Maximum | Net revenue | Customer Concentration Risk | Customer D          
Significant Customers, Concentration of Credit Risk and Geographic Information          
Concentration risk (as a percent) 10.00%   10.00%    
Maximum | Net revenue | Customer Concentration Risk | Customer E          
Significant Customers, Concentration of Credit Risk and Geographic Information          
Concentration risk (as a percent) 10.00%   10.00%