Derivatives Derivatives designated as fair value hedges narrative (Details) (USD $)			12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Interest Rate Lock Commitments [Member] Minimum [Member]	Dec. 31, 2013 Interest Rate Lock Commitments [Member] Maximum [Member]	Dec. 31, 2010 Hedging Instrument [Member]	Dec. 31, 2013 Hedging Instrument [Member] Interest rate lock commitments related to mandatory delivery methods [Member] open_commitment	Dec. 31, 2012 Hedging Instrument [Member] Interest rate lock commitments related to mandatory delivery methods [Member] open_commitment	Dec. 31, 2013 Hedging Instrument [Member] Forward Contracts [Member] open_contract	Dec. 31, 2012 Hedging Instrument [Member] Forward Contracts [Member] open_contract
Derivative [Line Items]
Period between issuance of a loan commitment and closing and sale of the loan, maximum			60 days	120 days
Notional Amount	$ 8,470,000	$ 8,918,000			$ 5,200,000	$ 22,200,000	$ 8,800,000	$ 33,000,000	$ 9,100,000
Number of positions						110	41	27	11
Fair value of hedge agreement						$ 16,000	$ 35,000	$ 202,000	$ 39,000