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Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]  
Future Minimum Lease Payments on Non-Cancelable Operating Leases

Future minimum lease payments on non-cancelable operating leases as of December 31, 2015 are as follows:

 

Years ending December 31,        
2016   $ 581  
2017     515  
2018     509  
2019     151  
2020     --  
2021 and thereafter     --  
    $ 1,756