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COMMITMENTS AND CONTINGENT LIABILITIES (Tables)
12 Months Ended
Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]  
Future minimum lease payments
Future minimum lease payments  (in thousands)   
 2018   $  381 
 2019      380 
 2020      390 
 2021      336 
 2022      199 
 2023      135 
 2024      129 
     $  1,950 
Future minimum lease payments under capital leases with present value of net minimum lease payments
Future minimum lease payments  (in thousands)   
 2018   $  214 
 2019      234 
 2020      234 
 2021      234 
 2022      234 
 Thereafter      1,424 
 Total minimum lease payments      2,574 
 Less amount representing interest      741 
     $  1,833