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SHARE-BASED COMPENSATION - Other Options Disclosures (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Other Options Disclosures [Line Items]    
Intrinsic value of options exercised $ 58 $ 325
Tax benefit from options exercised, before impact of valuation allowance 23 125
Cash received from exercise price of options exercised $ 22 $ 39