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Leases (Tables)
12 Months Ended
Dec. 31, 2016
Leases [Abstract]  
Schedule of future minimum lease payments, operating lease

Future obligations for minimum rentals under noncancelable operating leases at December 31, 2016 are as follows:

 

($ in thousands)
 
Year ending December 31:     
2017  $1,404 
2018   1,120 
2019   1,001 
2020   759 
2021   541 
  Thereafter   2,674 
       Total  $7,499