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Derivative Financial Instruments (Tables)
9 Months Ended
Sep. 30, 2018
Derivative Financial Instruments [Abstract]  
Schedule of outstanding financial derivative instruments
               
September 30, 2018
Fair Value
(dollars in thousands)NotionalBalance Sheet LocationAsset/(Liability)
Mortgage loan interest rate lock commitments$20,943Other assets$    189
MBS forward sales commitments15,750Other assets54
Total derivative financial instruments$36,693$243
 
December 31, 2017
Fair Value
NotionalBalance Sheet LocationAsset/(Liability)
Mortgage loan interest rate lock commitments$15,430Other assets$196
MBS forward sales commitments10,750Other liabilities(28)
Total derivative financial instruments$     26,180$               168