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Commitments and Unfunded Credits (Tables)
12 Months Ended
Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]  
Financial Instruments Representing Credit Risk

At December 31, 2016 and 2015, the following financial instruments were outstanding whose contract amounts represent credit risk (in thousands):

 

     2016      2015  

Commitments to extend credit and unfunded commitments under lines of credit

   $ 71,421      $ 61,115  

Stand-by letters of credit

     8,983        7,732