Securities - Amortized Cost, Gross Unrealized Gains and Losses and Fair Values of Securities Available for Sale (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 219,085	$ 222,019
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	2,930	2,754
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(3,168)	(8,651)
Fair Value	218,847	216,122
U.S. Government agencies and corporations
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	61,427	71,851
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	0	0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(2,097)	(6,463)
Assets, Fair Value Disclosure, Recurring	59,330
Fair Value		65,388
Mortgage backed securities: residential
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	98,061	94,313
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	1,194	1,362
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(701)	(1,245)
Assets, Fair Value Disclosure, Recurring	98,554
Fair Value		94,430
Residential collateralized mortgage obligations
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	25,206	18,650
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	167	255
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(221)	(250)
Assets, Fair Value Disclosure, Recurring	25,152
Fair Value		18,655
State and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	34,391	32,521
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	1,569	1,137
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(149)	(693)
Assets, Fair Value Disclosure, Recurring	35,811
Fair Value		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