Investment Securities, Amortized Cost, Fair Values, and Unrealized Gains and Losses of Securities (Details) - USD ($)		Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Schedule of Available-for-sale Securities [Line Items]
Amortized cost		$ 348,609,000	$ 362,172,000	$ 398,343,000
Gross unrealized gains		3,955,000	5,030,000	6,275,000
Gross unrealized losses		1,140,000	660,000	2,886,000
Fair/Book value		351,424,000	366,542,000	401,732,000
Schedule of Held-to-maturity Securities [Line Items]
Book value		67,401,000	63,863,000	70,340,000
Gross unrealized gains		278,000	782,000	683,000
Gross unrealized losses		213,000	10,000	90,000
Fair value		67,466,000	64,635,000	70,933,000
Government Agency & Government Sponsored Entities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost		11,063,000	78,051,000	18,230,000
Gross unrealized gains		58,000	61,000	194,000
Gross unrealized losses		0	3,000	0
Fair/Book value		11,121,000	78,109,000	18,424,000
US Treasury Notes [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost		80,212,000
Gross unrealized gains		85,000
Gross unrealized losses		59,000
Fair/Book value		80,238,000
Mortgage Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	[1]	256,849,000	283,636,000	323,518,000
Gross unrealized gains	[1]	3,812,000	4,969,000	5,688,000
Gross unrealized losses	[1]	1,081,000	657,000	2,871,000
Fair/Book value	[1]	259,580,000	287,948,000	326,335,000
Corporate Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost				54,283,000
Gross unrealized gains				393,000
Gross unrealized losses				15,000
Fair/Book value				54,661,000
Other [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost		485,000	485,000	2,312,000
Gross unrealized gains		0	0	0
Gross unrealized losses		0	0	0
Fair/Book value		485,000	485,000	2,312,000
Obligations of States and Political Subdivisions [Member]
Schedule of Held-to-maturity Securities [Line Items]
Book value		65,270,000	61,716,000	67,866,000
Gross unrealized gains		278,000	782,000	683,000
Gross unrealized losses		213,000	10,000	90,000
Fair value		65,335,000	62,488,000	68,459,000
Other [Member]
Schedule of Held-to-maturity Securities [Line Items]
Book value		2,131,000	2,147,000	2,474,000
Gross unrealized gains		0	0	0
Gross unrealized losses		0	0	0
Fair value		$ 2,131,000	$ 2,147,000	2,474,000
Municipal Bonds [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities sold				$ 375,000

[1] All Mortgage Backed Securities consist of securities collateralized by residential real estate and were issued by an agency or government sponsored entity of the U.S. government.