Securities - Summary of Securities that had Unrealized Losses (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Less than Twelve Months, Fair Value	$ 101,914	$ 29,263
Less than 12 Months, Aggregate Losses	(1,184)	(119)
Twelve Months or Longer, Fair Value	21,773	78,352
12 months or greater, Aggregate Losses	(714)	(1,345)
Total, Fair Value	123,687	107,615
Total Aggregate Losses	(1,898)	(1,464)
U.S. Government agencies and corporations
Schedule of Available-for-sale Securities [Line Items]
Less than Twelve Months, Fair Value	41,156	0
Less than 12 Months, Aggregate Losses	(528)	0
Twelve Months or Longer, Fair Value	4,701	43,865
12 months or greater, Aggregate Losses	(299)	(634)
Total, Fair Value	45,857	43,865
Total Aggregate Losses	(827)	(634)
Mortgage backed securities: residential
Schedule of Available-for-sale Securities [Line Items]
Less than Twelve Months, Fair Value	26,368	9,472
Less than 12 Months, Aggregate Losses	(248)	(30)
Twelve Months or Longer, Fair Value	14,858	26,493
12 months or greater, Aggregate Losses	(333)	(449)
Total, Fair Value	41,226	35,965
Total Aggregate Losses	(581)	(479)
Residential collateralized mortgage obligations
Schedule of Available-for-sale Securities [Line Items]
Less than Twelve Months, Fair Value	29,458	18,414
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	354
Less than 12 Months, Aggregate Losses		(81)
Twelve Months or Longer, Fair Value	0	3,899
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	0
12 months or greater, Aggregate Losses		(139)
Total, Fair Value	29,458	22,313
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss	354
Total Aggregate Losses		(220)
State and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Less than Twelve Months, Fair Value	4,932	1,377
Less than 12 Months, Aggregate Losses	(54)	(8)
Twelve Months or Longer, Fair Value	2,214	4,095
12 months or greater, Aggregate Losses	(82)	(123)
Total, Fair Value	7,146	5,472
Total Aggregate Losses	$ (136)	$ (131)