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Interest Bearing Deposits (Tables)
 12 Months Ended
Dec. 31, 2017
Interest Bearing Deposits/ Federal Home Loan Bank Advances [Abstract]  
Scheduled maturities of time deposit
($ in thousands)   
    
2018 $104,176 
2019  59,347 
2020  33,568 
2021  15,070 
2022  5,165 
Thereafter  492 
     
  $217,818