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Securities (Amortized Cost and Fair Values of Securities) (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Schedule of Investments [Line Items]    
Available for Sale, Amortized Cost $ 306,480 $ 138,111
Available-for-sale Securities, Gross Unrealized Gains 4,060 1,909
Available for Sale, Gross Unrealized Losses (414) (1,169)
Available for Sale, Fair Value 310,126 138,851
Total Debt Securities [Member]    
Schedule of Investments [Line Items]    
Available for Sale, Amortized Cost 306,160 137,819
Available-for-sale Securities, Gross Unrealized Gains 3,996 1,817
Available for Sale, Gross Unrealized Losses (414) (1,169)
Available for Sale, Fair Value 309,742 138,467
US Treasury Securities [Member]    
Schedule of Investments [Line Items]    
Available for Sale, Amortized Cost 2,006  
Available-for-sale Securities, Gross Unrealized Gains 0  
Available for Sale, Gross Unrealized Losses (2)  
Available for Sale, Fair Value 2,004  
U.S. Government Agencies [Member]    
Schedule of Investments [Line Items]    
Available for Sale, Amortized Cost 2,001 9,275
Available-for-sale Securities, Gross Unrealized Gains 0 2
Available for Sale, Gross Unrealized Losses 0 (108)
Available for Sale, Fair Value 2,001 9,169
States and political subdivisions [Member]    
Schedule of Investments [Line Items]    
Available for Sale, Amortized Cost 127,694 59,120
Available-for-sale Securities, Gross Unrealized Gains 3,050 1,747
Available for Sale, Gross Unrealized Losses (172) (112)
Available for Sale, Fair Value 130,572 60,755
Corporate obligations [Member]    
Schedule of Investments [Line Items]    
Available for Sale, Amortized Cost 10,301 4,933
Available-for-sale Securities, Gross Unrealized Gains 101 45
Available for Sale, Gross Unrealized Losses (17) (4)
Available for Sale, Fair Value 10,385 4,974
Mortgage-backed securities-government sponsored entities [Member]    
Schedule of Investments [Line Items]    
Available for Sale, Amortized Cost 164,158 64,491
Available-for-sale Securities, Gross Unrealized Gains 845 23
Available for Sale, Gross Unrealized Losses (223) (945)
Available for Sale, Fair Value 164,780 63,569
Equity securities-financial services [Member]    
Schedule of Investments [Line Items]    
Available for Sale, Amortized Cost 320 292
Available-for-sale Securities, Gross Unrealized Gains 64 92
Available for Sale, Gross Unrealized Losses 0 0
Available for Sale, Fair Value $ 384 $ 384