Loans (Details 11) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Financing Receivable Recorded Investment [Line Items]    
Loans $ 1,296,865 $ 663,852
Residential real estate    
Financing Receivable Recorded Investment [Line Items]    
Loans 395,067 183,853
Residential real estate | Residential real estate, 1-4 family residential    
Financing Receivable Recorded Investment [Line Items]    
Loans 312,915 152,598
Residential real estate | Residential real estate, 1-4 family residential | Performing Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans   149,661
Residential real estate | Residential real estate, 1-4 family residential | Nonperforming Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans   2,937
Residential real estate | Residential real estate, Home equity lines of credit    
Financing Receivable Recorded Investment [Line Items]    
Loans 82,152 31,255
Residential real estate | Residential real estate, Home equity lines of credit | Performing Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans   31,076
Residential real estate | Residential real estate, Home equity lines of credit | Nonperforming Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans   179
Consumer    
Financing Receivable Recorded Investment [Line Items]    
Loans 185,077 137,276
Consumer | Consumer, Indirect    
Financing Receivable Recorded Investment [Line Items]    
Loans 131,427 124,579
Consumer | Consumer, Indirect | Performing Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans   124,296
Consumer | Consumer, Indirect | Nonperforming Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans   283
Consumer | Consumer, Direct    
Financing Receivable Recorded Investment [Line Items]    
Loans 48,938 9,071
Consumer | Consumer, Direct | Performing Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans   9,035
Consumer | Consumer, Direct | Nonperforming Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans   36
Consumer | Consumer, Other    
Financing Receivable Recorded Investment [Line Items]    
Loans 4,712 3,626
Consumer | Consumer, Other | Performing Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans   3,625
Consumer | Consumer, Other | Nonperforming Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans   1
Originated Loans    
Financing Receivable Recorded Investment [Line Items]    
Loans 833,691  
Originated Loans | Residential real estate | Residential real estate, 1-4 family residential    
Financing Receivable Recorded Investment [Line Items]    
Loans 179,214 152,598
Originated Loans | Residential real estate | Residential real estate, 1-4 family residential | Performing Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans 176,472  
Originated Loans | Residential real estate | Residential real estate, 1-4 family residential | Nonperforming Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans 2,742  
Originated Loans | Residential real estate | Residential real estate, Home equity lines of credit    
Financing Receivable Recorded Investment [Line Items]    
Loans 41,223 31,255
Originated Loans | Residential real estate | Residential real estate, Home equity lines of credit | Performing Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans 40,984  
Originated Loans | Residential real estate | Residential real estate, Home equity lines of credit | Nonperforming Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans 239  
Originated Loans | Consumer | Consumer, Indirect    
Financing Receivable Recorded Investment [Line Items]    
Loans 131,427 124,579
Originated Loans | Consumer | Consumer, Indirect | Performing Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans 130,864  
Originated Loans | Consumer | Consumer, Indirect | Nonperforming Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans 563  
Originated Loans | Consumer | Consumer, Direct    
Financing Receivable Recorded Investment [Line Items]    
Loans 17,473 9,071
Originated Loans | Consumer | Consumer, Direct | Performing Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans 17,440  
Originated Loans | Consumer | Consumer, Direct | Nonperforming Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans 33  
Originated Loans | Consumer | Consumer, Other    
Financing Receivable Recorded Investment [Line Items]    
Loans 4,508 $ 3,626
Originated Loans | Consumer | Consumer, Other | Performing Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans 4,484  
Originated Loans | Consumer | Consumer, Other | Nonperforming Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans 24  
Acquired Loans    
Financing Receivable Recorded Investment [Line Items]    
Loans 463,174  
Acquired Loans | Residential real estate | Residential real estate, 1-4 family residential    
Financing Receivable Recorded Investment [Line Items]    
Loans 133,701  
Acquired Loans | Residential real estate | Residential real estate, 1-4 family residential | Performing Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans 132,776  
Acquired Loans | Residential real estate | Residential real estate, 1-4 family residential | Nonperforming Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans 925  
Acquired Loans | Residential real estate | Residential real estate, Home equity lines of credit    
Financing Receivable Recorded Investment [Line Items]    
Loans 40,929  
Acquired Loans | Residential real estate | Residential real estate, Home equity lines of credit | Performing Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans 40,797  
Acquired Loans | Residential real estate | Residential real estate, Home equity lines of credit | Nonperforming Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans 132  
Acquired Loans | Consumer | Consumer, Indirect    
Financing Receivable Recorded Investment [Line Items]    
Loans 0  
Acquired Loans | Consumer | Consumer, Indirect | Performing Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans 0  
Acquired Loans | Consumer | Consumer, Indirect | Nonperforming Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans 0  
Acquired Loans | Consumer | Consumer, Direct    
Financing Receivable Recorded Investment [Line Items]    
Loans 31,465  
Acquired Loans | Consumer | Consumer, Direct | Performing Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans 31,254  
Acquired Loans | Consumer | Consumer, Direct | Nonperforming Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans 211  
Acquired Loans | Consumer | Consumer, Other    
Financing Receivable Recorded Investment [Line Items]    
Loans 204  
Acquired Loans | Consumer | Consumer, Other | Performing Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans 204  
Acquired Loans | Consumer | Consumer, Other | Nonperforming Financing Receivable    
Financing Receivable Recorded Investment [Line Items]    
Loans $ 0