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Commitments and Contingencies (Tables)
3 Months Ended
Mar. 31, 2016
Commitments and Contingencies Disclosure [Abstract]  
Schedule of contractual amount of off-balance-sheet financial instruments
    March 31,     December 31,  
(in thousands)   2016     2015  
Commitments to extend credit   $ 232,687     $ 161,306  
Commitments to originate residential first and second mortgage loans     5,611       3,175  
Standby letters of credit     1,462       1,466  
Total     239,760       165,947