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Revenue From Contracts With Customers (Tables)
 3 Months Ended
Mar. 31, 2019
Revenue from Contract with Customer [Abstract]  
Disaggregation of Revenue
(dollars in thousands)
 
Three Months Ended March 31,
Revenue Streams
Point of Revenue Recognition
2019

 
2018

Service charges on deposit accounts
Over a period of time
$
457

 
$
533

 
At a point in time
2,696

 
2,708

 
 
$
3,153

 
$
3,241

 
 
 
 
 
Debit and credit card
Over a period time
$
185

 
$
188

 
At a point in time
2,789

 
2,849

 
 
$
2,974

 
$
3,037

 
 
 
 
 
Wealth management
Over a period of time
$
1,635

 
$
1,879

 
At a point in time
413

 
803

 
 
$
2,048

 
$
2,682

 
 
 
 
 
Other fee revenue
At a point in time
$
919

 
$
921