Securities - Amortized Cost, Gross Unrealized Gains and Losses and Fair Values of Securities Available for Sale (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 220,387	$ 222,019
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	3,079	2,754
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(4,044)	(8,651)
Fair Value	219,422	216,122
U.S. Government agencies and corporations
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	61,547	71,851
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	0	0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(2,916)	(6,463)
Fair Value	58,631	65,388
Mortgage backed securities: residential
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	98,829	94,313
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	1,422	1,362
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(720)	(1,245)
Fair Value	99,531	94,430
Residential collateralized mortgage obligations
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	27,001	18,650
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	171	255
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(184)	(250)
Fair Value	26,988	18,655
State and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	33,010	32,521
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	1,486	1,137
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(224)	(693)
Fair Value	34,272	32,965
Preferred securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		4,684
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax		0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax		0
Fair Value		$ 4,684