Securities (Investments Classified by Contractual Maturity Date) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Schedule of Investments [Line Items]
Available-for-sale Securities, Debt Maturities, within One Year, Amortized Cost Basis	$ 1,004		$ 1,004
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Amortized Cost Basis	32,521		32,521
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Amortized Cost Basis	41,497		41,497
Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis	5,006		5,006
Available-for-sale Securities, Amortized Cost Basis	166,231		166,231		200,144
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value	1,013		1,013
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value	34,389		34,389
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value	42,955		42,955
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	5,295		5,295
Available-for-sale Securities	175,889	209,335	175,889	209,335	209,227
Held-to-maturity Securities, Debt Maturities, after One Through Five Years, Net Carrying Amount	10,022		10,022
Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Net Carrying Amount	19,108		19,108
Held-to-maturity Securities	48,016	10,035	48,016	10,035	10,032
Held-to-maturity Securities, Debt Maturities, after One Through Five Years, Fair Value	10,524		10,524
Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Fair Value	19,187		19,187
Held-to-maturity Securities, Fair Value	48,971	10,758	48,971	10,758	10,680
Available-for-sale Securities, Gross Realized Gains	0	1	7	1
Available-for-sale Securities, Gross Realized Losses	0	0	0	0
Available-for-sale Securities Pledged as Collateral	150,974		150,974		124,069
Mortgage-backed securities [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Amortized Cost Basis	84,532		84,532
Available-for-sale Securities, Amortized Cost Basis	84,532		84,532		102,059
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value	90,342		90,342
Available-for-sale Securities	90,342		90,342		107,527
Held-to-maturity Securities, Debt Maturities, without Single Maturity Date, Net Carrying Amount	18,886		18,886
Held-to-maturity Securities	18,886		18,886
Held-to-maturity Securities, Debt Maturities, without Single Maturity Date, Fair Value	19,260		19,260
Held-to-maturity Securities, Fair Value	19,260		19,260
CRA mutual fund [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Amortized Cost Basis	1,044		1,044
Available-for-sale Securities, Amortized Cost Basis	1,044		1,044		1,044
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value	1,102		1,102
Available-for-sale Securities	1,102		1,102		1,081
Stock in other banks [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Amortized Cost Basis	627		627
Available-for-sale Securities, Amortized Cost Basis	627		627		627
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value	793		793
Available-for-sale Securities	$ 793		$ 793		$ 754