Loans, Allowance for Loan Losses and Credit Quality Foreclosed Residential Real Estate Property (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015
Foreclosed Residential Real Estate Property [Abstract]
Foreclosed residential real estate property held by the creditor	$ 2,239
Recorded investment in mortgage loans collateralized by residential real estate property that are in the process of foreclosure	$ 1,508