Financial Instruments With Off-Balance-Sheet Risk and Credit Risk (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Deposits in financial institutions in excess of amounts insured by the FDIC	$ 2,900,000
Commitments to Extend Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Financial instrument contract amount	78,288,000	92,032,000
Standby Letters of Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Financial instrument contract amount	$ 3,445,000	$ 1,837,000