Securities - Fair Value and Gross Unrealized Losses by Investment Category and Length of Time (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Available-for-sale Securities, Total Fair Value	$ 16,158	$ 113,726
Available-for-sale Securities, Fair Value Less than 12 Months	13,397	109,381
Available-for-sale Securities, Fair Value 12 Months or More	2,761	4,345
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract]
Available-for-sale Securities, Total Unrealized Loss	27	801
Available-for-sale Securities, Unrealized Loss Less than 12 Months	9	728
Available-for-sale Securities, Unrealized Loss 12 Months or Longer	18	73
Federal agencies and GSEs [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Available-for-sale Securities, Total Fair Value	8,505	57,711
Available-for-sale Securities, Fair Value Less than 12 Months	8,505	57,711
Available-for-sale Securities, Fair Value 12 Months or More	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract]
Available-for-sale Securities, Total Unrealized Loss	1	319
Available-for-sale Securities, Unrealized Loss Less than 12 Months	1	319
Available-for-sale Securities, Unrealized Loss 12 Months or Longer	0	0
Mortgage-backed and CMOs [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Available-for-sale Securities, Total Fair Value	2,589	37,368
Available-for-sale Securities, Fair Value Less than 12 Months	648	35,424
Available-for-sale Securities, Fair Value 12 Months or More	1,941	1,944
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract]
Available-for-sale Securities, Total Unrealized Loss	19	389
Available-for-sale Securities, Unrealized Loss Less than 12 Months	1	346
Available-for-sale Securities, Unrealized Loss 12 Months or Longer	18	43
State and municipal [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Available-for-sale Securities, Total Fair Value	5,064	13,540
Available-for-sale Securities, Fair Value Less than 12 Months	4,244	12,716
Available-for-sale Securities, Fair Value 12 Months or More	820	824
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract]
Available-for-sale Securities, Total Unrealized Loss	7	36
Available-for-sale Securities, Unrealized Loss Less than 12 Months	7	34
Available-for-sale Securities, Unrealized Loss 12 Months or Longer	$ 0	2
Corporate [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Available-for-sale Securities, Total Fair Value		5,107
Available-for-sale Securities, Fair Value Less than 12 Months		3,530
Available-for-sale Securities, Fair Value 12 Months or More		1,577
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract]
Available-for-sale Securities, Total Unrealized Loss		57
Available-for-sale Securities, Unrealized Loss Less than 12 Months		29
Available-for-sale Securities, Unrealized Loss 12 Months or Longer		$ 28