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Off-Balance Sheet Activities (Tables)
12 Months Ended
Dec. 31, 2015
Fair Value Disclosures [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: 

                           
    2015 2014  
(Dollars in thousands)   Fixed
Rate
  Variable
Rate
  Fixed
Rate
  Variable
Rate
 
                           
Unused lines of credit and letters of credit   $ 14,445   $ 77,089   $ 7,076   $ 60,476  
Commitments to fund loans (at market rates)     18,654     1,740     3,116     1,050