Core Deposit Intangible (Summary of Core Deposit Intangible) (Details) (Core Deposits [Member], USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Core Deposits, Gross	$ 523
Finite-Lived Intangible Assets, Accumulated Amortization	(467)
Finite-Lived Intangible Assets, Net, Total	56
2004 Acquisition [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Core Deposits, Gross	291
Finite-Lived Intangible Assets, Accumulated Amortization	(291)
Finite-Lived Intangible Assets, Net, Total
2006 Acquisition [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Core Deposits, Gross	232
Finite-Lived Intangible Assets, Accumulated Amortization	(176)
Finite-Lived Intangible Assets, Net, Total	$ 56