Loans, Troubled Debt Restructuring (Details) (USD $)	3 Months Ended
	Mar. 31, 2013 Loan	Mar. 31, 2012 Loan
Loan modifications classified as troubled debt restructurings [Abstract]
Troubled debt restructurings that subsequently defaulted within 12 months of the restructuring date		$ 0
Residential Real Estate [Member]
Loan modifications classified as troubled debt restructurings [Abstract]
Number of loans	1	1
Balance at modification	80,000	30,000
Consumer Loans Auto Financing Receivable [Member]
Loan modifications classified as troubled debt restructurings [Abstract]
Troubled debt restructurings that subsequently defaulted within 12 months of the restructuring date	$ 13,000