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Lease Commitments (Tables)
12 Months Ended
Dec. 31, 2016
Leases [Abstract]  
Minimum Rental Commitments under Noncancelable Leases

Minimum rental commitments under noncancelable leases with terms in excess of one year as of December 31, 2016 were as follows (in thousands):

 

     Operating
Leases
 

2017

   $ 87  

2018

     65  

2019

     23  

2020

     5  

2021 and thereafter

     —    
  

 

 

 
   $ 180