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Off-Balance Sheet Activities (Tables)
12 Months Ended
Dec. 31, 2019
Risks and Uncertainties [Abstract]  
Schedule of contractual amount of financial instruments with off-balance sheet risk

The contractual amount of financial instruments with off-balance sheet risk was as follows at December 31:

 

    2019   2018  
    Fixed     Variable     Fixed     Variable  
(Dollars in thousands)   Rate     Rate     Rate     Rate  
Unused lines of credit and letters of credit   $ 38,064     $ 177,447     $ 20,036     $ 103,978  
Commitments to fund loans (at market rates)   $ 18,216     $     4,580     $ 20,997     $ 1,421