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Derivative Financial Instruments (Tables)
 9 Months Ended
Sep. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule of Interest Rate Derivatives A summary of our derivative financial instruments as of September 30, 2020 and December 31, 2019 follows:
 September 30, 2020
 Notional
Amount		Derivative Fair ValueNet Ineffective
Dollars in thousandsAssetLiabilityHedge Gains/(Losses)
CASH FLOW HEDGES    
Pay-fixed/receive-variable interest rate swaps   
Short term borrowings$80,000 $— $1,652 $— 
Interest rate cap
Short term borrowings$100,000 $4,611 $— $— 
FAIR VALUE HEDGES
Pay-fixed/receive-variable interest rate swaps
Commercial real estate loans$18,349 $— $1,415 $— 
 December 31, 2019
 Notional
Amount		Derivative Fair ValueNet Ineffective
Dollars in thousandsAssetLiabilityHedge Gains/(Losses)
CASH FLOW HEDGES    
Pay-fixed/receive-variable interest rate swaps   
Short term borrowings$70,000 $— $679 $— 
FAIR VALUE HEDGES
Pay-fixed/receive-variable interest rate swaps
Commercial real estate loans$18,809 $— $309 $—