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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Accounts Receivable) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Allowance for Doubtful Accounts Receivable [Roll Forward]        
Beginning balance $ 157 $ 20 $ 87 $ 20
Additions 2 50 72 50
Deductions (19) 0 (19) 0
Ending balance $ 140 $ 70 $ 140 $ 70
Accounts receivable, general payment terms     30 days