Fair Value Accounting and Measurement Fair Value, quantitative inputs to Level 3 measurements (Details) (Fair Value, Measurements, Nonrecurring [Member], USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Impaired loans		$ 8,973
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Impaired loans		8,973
Other Real Estate Owned, Fair Value Disclosure	$ 5,365	$ 5,693