Fair Value Measurements, Quantitative Information (Details)	9 Months Ended
	Sep. 30, 2012
Impaired Loans Under Range One [Member]
Fair value inputs [Abstract]
Valuation Technique	Discounted appraised value
Impaired Loans Under Range One [Member] | Minimum [Member]
Fair value inputs [Abstract]
Selling cost (in hundredths)	0.00%
Impaired Loans Under Range One [Member] | Maximum [Member]
Fair value inputs [Abstract]
Selling cost (in hundredths)	10.00%
Impaired Loans Under Range One [Member] | Weighted Average [Member]
Fair value inputs [Abstract]
Selling cost (in hundredths)	10.00%
Impaired Loans Under Range Two [Member]
Fair value inputs [Abstract]
Valuation Technique	Discounted appraised value
Impaired Loans Under Range Two [Member] | Minimum [Member]
Fair value inputs [Abstract]
Discount for lack of marketability and age of appraisal (in hundredths)	0.00%
Impaired Loans Under Range Two [Member] | Maximum [Member]
Fair value inputs [Abstract]
Discount for lack of marketability and age of appraisal (in hundredths)	40.00%
Impaired Loans Under Range Two [Member] | Weighted Average [Member]
Fair value inputs [Abstract]
Discount for lack of marketability and age of appraisal (in hundredths)	29.67%
Impaired Loans Under Range Three [Member]
Fair value inputs [Abstract]
Valuation Technique	Present value of cash flows
Discount rate (in hundredths)	6.00%	[1]
Other Real Estate Owned [Member]
Fair value inputs [Abstract]
Valuation Technique	Discounted appraised value
Other Real Estate Owned [Member] | Minimum [Member]
Fair value inputs [Abstract]
Selling cost (in hundredths)	0.00%	[2]
Discount for lack of marketability and age of appraisal (in hundredths)	0.00%
Other Real Estate Owned [Member] | Maximum [Member]
Fair value inputs [Abstract]
Selling cost (in hundredths)	6.25%
Discount for lack of marketability and age of appraisal (in hundredths)	29.72%
Other Real Estate Owned [Member] | Weighted Average [Member]
Fair value inputs [Abstract]
Selling cost (in hundredths)	6.06%
Discount for lack of marketability and age of appraisal (in hundredths)	7.12%

[1] Of the Company's impaired loans with specific allocations based on Level 3 inputs, only one loan was valued using present value of cash flows

[2] The Company markets other real estate owned both independently and with local realtors. Properties marketed by realtors are discounted by selling costs. Properties that the Company markets independently are not discounted by selling costs.