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Securities Continuous Unrealized Loss (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]    
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value $ 50,769 $ 13,335
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses 370 56
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value 43,597 66,870
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses 935 1,424
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value 94,366 80,205
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses 1,305 1,480
US Government and Government Agencies and Authorities [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value 8,157 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses 2 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value 24,444 24,126
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses 516 830
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value 32,601 24,126
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses 518 830
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value 42,345 9,078
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses 367 22
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value 18,184 42,744
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses 413 594
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value 60,529 51,822
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses 780 616
US States and Political Subdivisions Debt Securities [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value 267 4,257
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses 1 34
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value 969 0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses 6 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value 1,236 4,257
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses $ 7 $ 34