INTANGIBLE ASSETS - AMORTIZATION (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Amortization      
Amortization expense $ 17 $ 17 $ 17
Future amortization      
2017 17    
2018 17    
2019 17    
2020 17    
2021 $ 10