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Security Types (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
US Government and Government Agencies and Authorities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value	$ 0	$ 0
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value	0	0
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value	24,001	20,065
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	22,614	19,460
Available-for-sale Securities, Fair Value, Total	46,615	39,525
Available-for-sale Securities, Gross Unrealized Gain	22	187
Available-for-sale Securities, Gross Unrealized Losses	2,480	19
Available-for-sale Securities, Amortized Cost Basis	49,073	39,357
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value	0	0
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value	0	0
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value	3,968	4,700
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	149,995	136,760
Available-for-sale Securities, Fair Value, Total	153,963	141,460
Available-for-sale Securities, Gross Unrealized Gain	938	3,012
Available-for-sale Securities, Gross Unrealized Losses	3,416	162
Available-for-sale Securities, Amortized Cost Basis	156,441	138,610
US States and Political Subdivisions Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value	0	111
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value	1,846	1,830
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value	20,149	21,006
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	47,527	54,891
Available-for-sale Securities, Fair Value, Total	69,522	77,838
Available-for-sale Securities, Gross Unrealized Gain	2,341	5,222
Available-for-sale Securities, Gross Unrealized Losses	309	0
Available-for-sale Securities, Amortized Cost Basis	67,490	72,616
Trust Preferred Securities Individual Issuer [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value	0	0
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value	0	0
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value	0	0
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	694	652
Available-for-sale Securities, Fair Value, Total	694	652
Available-for-sale Securities, Gross Unrealized Gain	137	113
Available-for-sale Securities, Gross Unrealized Losses	136	154
Available-for-sale Securities, Amortized Cost Basis	693	693
Security Maturities, Total [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value	0	111
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value	1,846	1,830
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value	48,118	45,771
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	220,830	211,763
Available-for-sale Securities, Fair Value, Total	270,794	259,475
Available-for-sale Securities, Gross Unrealized Gain	3,438	8,534
Available-for-sale Securities, Gross Unrealized Losses	6,341	335
Available-for-sale Securities, Amortized Cost Basis	$ 273,697	$ 251,276

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