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Acquisitions Acquisitions (Tables)
 12 Months Ended
Dec. 31, 2018
Business Combinations [Abstract]  
Financial Effects of Purchase Accounting Adjustments
The following presents the financial effects of adjustments recognized in the statements of income for the years ended December 31, 2018 and 2017 related to business combinations that occurred during 2016 and 2017.
 
Income increase (decrease)
Dollars in thousands
December 31, 2018
 
December 31, 2017
Interest and fees on loans
$
386

 
$
825

Interest expense on deposits
205

 
237

Amortization of intangibles
(1,471
)
 
(1,210
)
Income before income tax expense
$
(880
)
 
$
(148
)