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Derivative Financial Instruments and Repurchase Agreements (Tables)
 9 Months Ended
Sep. 30, 2017
Derivative Financial Instruments and Repurchase Agreements [Abstract]  
Schedule of fair values of derivative instruments on the balance sheet
  Asset Derivatives Liability Derivatives
  September 30, 2017 September 30, 2017
 Balance Sheet Fair  Balance Sheet Fair 
($ in thousands) Location Value  Location Value 
Derivatives not designated as hedging instruments:          
Interest rate contracts Other Assets $659  Other Liabilities $659 

 

  Asset Derivatives Liability Derivatives
  December 31, 2016 December 31, 2016
($ in thousands) Balance Sheet Fair  Balance Sheet Fair 
  Location Value  Location Value 
Derivatives not designated as hedging instruments:          
Interest rate contracts Other Assets $623  Other Liabilities $623