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Leases (Tables)
12 Months Ended
Dec. 31, 2018
Leases [Abstract]  
Schedule of future minimum lease payments, operating lease

Future obligations for minimum rentals under noncancelable operating leases at December 31, 2018 are as follows:

 

($ in thousands)
 
Year ending December 31:     
2019  $2,268 
2020   1,973 
2021   1,344 
2022   869 
2023   768 
  Thereafter   4,082 
       Total  $11,304