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ALLOWANCE FOR DOUBTFUL ACCOUNTS (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Activity in the accounts receivable allowance from continuing operations    
Balance at beginning of period $ 84 $ 81
Bad debt expense 65 87
Write-offs   (11)
Other adjustments (4) (73)
Balance at end of period $ 145 $ 84