Investment Securities (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended		12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Securities Available for Sale [Abstract]
Amortized Cost	$ 285,104		$ 277,008
Gross Unrealized Gains	270		134
Gross Unrealized Losses	(9,312)		(13,884)
Fair Value	276,062		263,258
Securities Held to Maturity [Abstract]
Fair Value	32		37
Available-for-sale Amortized Cost [Abstract]
Due in One Year or Less	990
Due After One Year Through Five Years	735
Due After Five Years Through Ten Years	969
Due After Ten Years	652
Total	3,346
Mortgage-Backed Securities	281,758
Amortized Cost	285,104
Available-for-sale Fair Value [Abstract]
Due in One Year or Less	995
Due After One Year Through Five Years	744
Due After Five Years Through Ten Years	954
Due After Ten Years	647
Total	3,340
Mortgage-Backed Securities	272,722
Fair Value	276,062
Held-to-maturity Amortized Cost [Abstract]
Due in One Year or Less	0
Due After One Year Through Five Years	32
Due After Five Years Through Ten Years	0
Due After Ten Years	0
Total	32
Mortgage-Backed Securities	0
Amortized Cost	32		37
Held-to-maturity Fair Value [Abstract]
Due in One Year or Less	0
Due After One Year Through Five Years	32
Due After Five Years Through Ten Years	0
Due After Ten Years	0
Total	32
Mortgage-Backed Securities	0
Fair Value	32		37
Proceeds from sale of investment securities available for sale	0	36,217
Available-for-sale securities, gross realized gains	0	191
Available-for-sale securities, gross realized losses	0	(193)
Investment securities pledged	108,058		112,913
Continuous unrealized loss position [Abstract]
Less Than 12 Months, Fair value	49,627		191,711
12 Months or Greater, Fair value	186,939		63,194
Total, Fair Value	236,566		254,905
Less Than 12 Months, Gross Unrealized Losses	(282)		(9,525)
12 Months or Greater, Gross Unrealized Losses	(9,030)		(4,359)
Total, Unrealized Losses	(9,312)		(13,884)
Debt securities with unrealized losses, depreciated (in hundredths)	3.79%
US Government Agencies Mortgage-Backed [Member]
Securities Available for Sale [Abstract]
Amortized Cost	281,758		273,029
Gross Unrealized Gains	250		119
Gross Unrealized Losses	(9,286)		(13,800)
Fair Value	272,722		259,348
Continuous unrealized loss position [Abstract]
Less Than 12 Months, Fair value	49,357		190,064
12 Months or Greater, Fair value	185,553		63,194
Total, Fair Value	234,910		253,258
Less Than 12 Months, Gross Unrealized Losses	(282)		(9,441)
12 Months or Greater, Gross Unrealized Losses	(9,004)		(4,359)
Total, Unrealized Losses	(9,286)		(13,800)
State, County & Municipal [Member]
Securities Available for Sale [Abstract]
Amortized Cost	3,346		3,979
Gross Unrealized Gains	20		15
Gross Unrealized Losses	(26)		(84)
Fair Value	3,340		3,910
Securities Held to Maturity [Abstract]
Amortized Cost	32		37
Gross Unrealized Gains	0		0
Gross Unrealized Losses	0		0
Fair Value	32		37
Held-to-maturity Fair Value [Abstract]
Fair Value	32		37
Continuous unrealized loss position [Abstract]
Less Than 12 Months, Fair value	270		1,647
12 Months or Greater, Fair value	1,386		0
Total, Fair Value	1,656		1,647
Less Than 12 Months, Gross Unrealized Losses	0		(84)
12 Months or Greater, Gross Unrealized Losses	(26)		0
Total, Unrealized Losses	$ (26)		$ (84)