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Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Minimum Annual Lease Commitments
At December 31, 2015, the minimum annual lease commitments under the leases having terms in excess of one year were as follows (in thousands):
 
Years Ending December 31,
 
Operating leases
 
2016
 
$
972
 
2017
 
 
910
 
2018
 
 
647
 
2019
 
 
421
 
2020
 
 
255
 
Thereafter
 
 
194
 
Total lease commitments
 
$
3,399