Securities (Investments Classified by Contractual Maturity Date) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Schedule of Investments [Line Items]
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value	$ 1,550
Available For Sale Securities Debt Maturities Next Twelve Months Fair Value Yield	0.77%
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value	3,558
Available For Sale Securities Debt Maturities Year Two Through Five Years Fair Value Yield	1.93%
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value	21,755
Available For Sale Securities Debt Maturities Year Six Through Ten Years Fair Value Yield	3.00%
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	64,204
Available For Sale Securities Debt Maturities After Ten Years Fair Value Yield	2.64%
Available-for-sale Securities	91,067	89,538
Available For Sale Securities Total Fair Value Yield	2.67%
Held-to-maturity Securities, Debt Maturities, within One Year, Net Carrying Amount	672
Held-to-maturity Securities, Debt Maturities, within One Year, Net Carrying Amount Yield	0.96%
Held-to-maturity Securities, Debt Maturities, after One Through Five Years, Net Carrying Amount	871
Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount Yield	4.75%
Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Net Carrying Amount	1,589
Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount Yield	3.74%
Held-to-maturity Securities, Debt Maturities, after Ten Years, Net Carrying Amount	25,135
Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount Yield	2.69%
Securities held to maturity, Carrying amount	28,267	21,515
Held To Maturity Securities Total Carrying Amount Yield	2.77%
US Government Agencies Debt Securities [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value	1,108
Available For Sale Securities Debt Maturities Year Two Through Five Years Fair Value Yield	1.17%
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value	1,017
Available For Sale Securities Debt Maturities Year Six Through Ten Years Fair Value Yield	2.13%
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	4,870
Available For Sale Securities Debt Maturities After Ten Years Fair Value Yield	2.09%
Available-for-sale Securities	6,995	2,568
Available For Sale Securities Total Fair Value Yield	1.95%
Held-to-maturity Securities, Debt Maturities, after Ten Years, Net Carrying Amount	6,049
Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount Yield	1.80%
Securities held to maturity, Carrying amount	6,049	5,050
Held To Maturity Securities Total Carrying Amount Yield	1.80%
US States and Political Subdivisions Debt Securities [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value	1,504
Available For Sale Securities Debt Maturities Next Twelve Months Fair Value Yield	0.70%
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value	841
Available For Sale Securities Debt Maturities Year Two Through Five Years Fair Value Yield	2.55%
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value	13,151
Available For Sale Securities Debt Maturities Year Six Through Ten Years Fair Value Yield	2.92%
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	5,410
Available For Sale Securities Debt Maturities After Ten Years Fair Value Yield	2.83%
Available-for-sale Securities	20,906	15,303
Available For Sale Securities Total Fair Value Yield	2.72%
Held-to-maturity Securities, Debt Maturities, within One Year, Net Carrying Amount	624
Held-to-maturity Securities, Debt Maturities, within One Year, Net Carrying Amount Yield	0.75%
Held-to-maturity Securities, Debt Maturities, after Ten Years, Net Carrying Amount	2,120
Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount Yield	4.70%
Securities held to maturity, Carrying amount	2,744	2,746
Held To Maturity Securities Total Carrying Amount Yield	3.80%
Residential Mortgage Backed Securities [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value	46
Available For Sale Securities Debt Maturities Next Twelve Months Fair Value Yield	3.11%
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value	208
Available For Sale Securities Debt Maturities Year Two Through Five Years Fair Value Yield	4.41%
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value	680
Available For Sale Securities Debt Maturities Year Six Through Ten Years Fair Value Yield	4.44%
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	40,064
Available For Sale Securities Debt Maturities After Ten Years Fair Value Yield	2.72%
Available-for-sale Securities	40,998	45,545
Available For Sale Securities Total Fair Value Yield	2.76%
Held-to-maturity Securities, Debt Maturities, within One Year, Net Carrying Amount	48
Held-to-maturity Securities, Debt Maturities, within One Year, Net Carrying Amount Yield	3.67%
Held-to-maturity Securities, Debt Maturities, after One Through Five Years, Net Carrying Amount	871
Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount Yield	4.75%
Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Net Carrying Amount	610
Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount Yield	5.00%
Held-to-maturity Securities, Debt Maturities, after Ten Years, Net Carrying Amount	10,124
Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount Yield	2.05%
Securities held to maturity, Carrying amount	11,653	11,048
Held To Maturity Securities Total Carrying Amount Yield	2.42%
Commercial Mortgage Backed Securities [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	3,681
Available For Sale Securities Debt Maturities After Ten Years Fair Value Yield	3.11%
Available-for-sale Securities	3,681	4,463
Available For Sale Securities Total Fair Value Yield	3.11%
Held-to-maturity Securities, Debt Maturities, after Ten Years, Net Carrying Amount	6,842
Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount Yield	3.80%
Securities held to maturity, Carrying amount	6,842	2,671
Held To Maturity Securities Total Carrying Amount Yield	3.80%
Corporate Debt Securities [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value	1,401
Available For Sale Securities Debt Maturities Year Two Through Five Years Fair Value Yield	1.80%
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value	6,907
Available For Sale Securities Debt Maturities Year Six Through Ten Years Fair Value Yield	3.14%
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	10,179
Available For Sale Securities Debt Maturities After Ten Years Fair Value Yield	2.33%
Available-for-sale Securities	18,487	21,659
Available For Sale Securities Total Fair Value Yield	2.59%
Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Net Carrying Amount	979
Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount Yield	2.95%
Securities held to maturity, Carrying amount	$ 979
Held To Maturity Securities Total Carrying Amount Yield	2.95%

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