Fair Value of Financial Instruments (Quantitative Information about Level 3 Fair Value Measurements) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012
Commercial Loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired Loans Fair Value Disclosure	$ 1,225
Valuation Techniques	Income approach
Range (Weighted Average), Capitalization rate	(38.00%)
Range (Weighted Average), Disposal costs	(2.00%)
Residential mortgage [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired Loans Fair Value Disclosure	$ 38
Valuation Techniques	Appraisal of collateral (1)	[1]
Range (Weighted Average), Capitalization rate	(23.00%)

[1] Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various level 3 inputs which are not identifiable.