Securities (Reconciliation of fair value of securities) (Details) (USD $)	Sep. 30, 2014		Dec. 31, 2013
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Other than Temporary Impairment Losses, Investments, Reclassification Adjustment of Noncredit Portion Included in Net Income, Availabe-for-sale Securities, before Tax	$ 1,100,000	[1]	$ 2,300,000
Reconciliation of fair value of securities
Available for sale Securities, Amortized Cost	359,121,000		360,317,000
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	7,730,000		7,675,000
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(5,396,000)		(11,130,000)
Available for sale Securities, Fair Value, Total	361,455,000		356,862,000
Held to maturity Securities, Amortized Cost	372,418,000		350,652,000
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	5,583,000		3,012,000
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	(4,536,000)		(7,209,000)
Held to Maturity, Fair Value, Total	373,465,000		346,455,000
Amortized Cost	731,539,000		710,969,000
Gross Unrealized Gains	13,313,000		10,687,000
Unrealized Losses Other	9,932,000		(18,339,000)
Fair Value	734,920,000		703,317,000
U. S. Government Agency Securities [Member]
Reconciliation of fair value of securities
Available for sale Securities, Amortized Cost	41,357,000		41,331,000
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	23,000		3,000
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	(93,000)		(885,000)
Available for sale Securities, Fair Value, Total	41,287,000		40,449,000
U.S. Treasury securities
Reconciliation of fair value of securities
Held to maturity Securities, Amortized Cost	1,010,000		1,011,000
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	50,000		31,000
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	0		0
Held to Maturity, Fair Value, Total	1,060,000		1,042,000
Agency mortgage-backed securities
Reconciliation of fair value of securities
Available for sale Securities, Amortized Cost	224,336,000		232,742,000
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	6,397,000		6,405,000
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	(1,529,000)		(4,556,000)
Available for sale Securities, Fair Value, Total	229,204,000		234,591,000
Held to maturity Securities, Amortized Cost	164,531,000		155,067,000
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	3,511,000		1,917,000
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	(42,000)		(1,033,000)
Held to Maturity, Fair Value, Total	168,000,000		155,951,000
Agency Collateralized Mortgage Obligations [Member]
Reconciliation of fair value of securities
Available for sale Securities, Amortized Cost	66,244,000		58,765,000
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	285,000		490,000
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	(943,000)		(1,102,000)
Available for sale Securities, Fair Value, Total	65,586,000		58,153,000
Held to maturity Securities, Amortized Cost	199,950,000		187,388,000
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	1,821,000		824,000
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	(4,494,000)		(6,176,000)
Held to Maturity, Fair Value, Total	197,277,000		182,036,000
State, County, and Municipal Securities [Member]
Reconciliation of fair value of securities
Available for sale Securities, Amortized Cost	5,125,000		5,439,000
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	128,000		1,000
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax			(28,000)
Available for sale Securities, Fair Value, Total	5,253,000		5,412,000
Held to maturity Securities, Amortized Cost	424,000		678,000
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	9,000		7,000
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	0		0
Held to Maturity, Fair Value, Total	433,000		685,000
Single Issuer Trust Preferred Securities Issued by Banks and Insurers [Member]
Reconciliation of fair value of securities
Available for sale Securities, Amortized Cost	2,925,000		2,960,000
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	14,000		14,000
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	(16,000)		(22,000)
Available for sale Securities, Fair Value, Total	2,923,000		2,952,000
Held to maturity Securities, Amortized Cost	1,500,000		1,503,000
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	30,000		23,000
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	0		0
Held to Maturity, Fair Value, Total	1,530,000		1,526,000
Pooled trust preferred securities issued by banks and insurers
Reconciliation of fair value of securities
Available for sale Securities, Amortized Cost	7,961,000		8,083,000
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	32,000
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	(2,607,000)		(4,242,000)
Available for sale Securities, Fair Value, Total	5,386,000		3,841,000
Equity securities
Reconciliation of fair value of securities
Available for sale Securities, Amortized Cost	11,173,000		10,997,000
Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax	851,000		762,000
Available-for-sale Equity Securities, Accumulated Gross Unrealized Loss, before Tax	(208,000)		(295,000)
Available for sale Securities, Fair Value, Total	11,816,000		11,464,000
Corporate debt securities
Reconciliation of fair value of securities
Held to maturity Securities, Amortized Cost	5,003,000		5,005,000
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	162,000		210,000
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	0		0
Held to Maturity, Fair Value, Total	5,165,000		5,215,000
Municipal Bonds [Member]
Reconciliation of fair value of securities
Held to Maturity, Fair Value, Total	433,000	[2]	685,000	[2]
Fair Value, Measurements, Recurring [Member] | Municipal Bonds [Member]
Reconciliation of fair value of securities
Available for sale Securities, Fair Value, Total	5,253,000		5,412,000
Fair Value, Inputs, Level 2 [Member] | Municipal Bonds [Member]
Reconciliation of fair value of securities
Held to Maturity, Fair Value, Total			685,000
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Municipal Bonds [Member]
Reconciliation of fair value of securities
Available for sale Securities, Fair Value, Total			$ 5,412,000

[1] (1) Gross unrealized gains and gross unrealized losses include $1.1 million and $2.3 million of net non-credit related OTTI at September 30, 2014 and December 31, 2013, respectively.

[2] The fair values presented are based on quoted market prices, where available. If quoted market prices are not available, fair values are based on quoted market prices of comparable instruments and/or discounted cash flow analyses.