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SHARE-BASED COMPENSATION - Other Options Disclosures (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Other Options Disclosures [Line Items]    
Intrinsic value of options exercised $ 50 $ 25
Tax benefit from options exercised, before impact of valuation allowance 20 10
Cash received from exercise price of options exercised $ 5 $ 3