Fair Value Measurement, on Recurring Basis, Unobservble Input Reconciliation (Details) (USD $)			3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2013 Fair Value, Measurements, Recurring [Member] Significant Other Unobservable Inputs (Level 3) [Member] Available-for-sale Securities [Member]	Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Significant Other Unobservable Inputs (Level 3) [Member] Available-for-sale Securities [Member]	Mar. 31, 2013 Fair Value, Measurements, Nonrecurring [Member] Significant Other Unobservable Inputs (Level 3) [Member] Impaired Loans [Member]	Mar. 31, 2013 Fair Value, Measurements, Nonrecurring [Member] Significant Other Unobservable Inputs (Level 3) [Member] Impaired Loans [Member] Mortgage secured by real estate [Member] Loan	Mar. 31, 2013 Fair Value, Measurements, Nonrecurring [Member] Significant Other Unobservable Inputs (Level 3) [Member] Impaired Loans [Member] Mortgage secured by business assets [Member] Loan	Mar. 31, 2013 Fair Value, Measurements, Nonrecurring [Member] Significant Other Unobservable Inputs (Level 3) [Member] Other Real Estate Owned [Member]	Dec. 31, 2012 Fair Value, Measurements, Nonrecurring [Member] Significant Other Unobservable Inputs (Level 3) [Member] Other Real Estate Owned [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period			$ 325,000	$ 335,000
Total gain (losses) realized/unrealized included in earnings			0	0
Total gain (losses) realized/unrealized included in other comprehensive income			(12,000)	(10,000)
Transfers in and/or out of level 3 and 2			0	0
Balance, end of period			313,000	325,000
Impaired Loans [Abstract]
Age of appraisal of real estate property for to be considered level 3, minimum					1 year
Number of loans						1	2
Loans	449,679,000	451,366,000				327,000	303,000
Reserve for loan losses						203,000	168,000
Total Valuation of Property								$ 1,406,000	$ 1,406,000