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Lease Commitments (Tables)
12 Months Ended
Dec. 31, 2016
Leases [Abstract]  
Future Minimum Lease Payments
Future minimum lease payments under non-cancelable operating leases are as follows:
 
 
Commitments

 
 
2017
$
548

2018
458

2019
421

2020
426

2021
392

Thereafter
742

 
$
2,987