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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Accounts Receivable) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Allowance for Doubtful Accounts Receivable [Roll Forward]    
Beginning balance $ 87 $ 20
Additions 21 0
Deductions 0 0
Ending balance $ 108 $ 20
Accounts receivable, general payment terms 30 days