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COMMITMENTS AND CONTINGENCIES (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
COMMITMENTS AND CONTINGENCIES [Abstract]      
Rent expense $ 700 $ 500 $ 400
Expected future lease payouts [Abstract]      
2016 918    
2017 934    
2018 953    
2019 981    
2020 1,019    
Thereafter 2,104    
Total $ 6,909