Fair Value (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011
Fair value measurements
Notional or Principal Amount	$ 250,826
Assumed Gain (Loss) from loan sale	(1,235)
Interest Rate Movement Effect	1,268
Servicing Rights Value	2,326
Security Price Change	(2,430)
Total Fair Value Adjustment Gain/(Loss)	(71)
Rate Lock Commitments [Member]
Fair value measurements
Notional or Principal Amount	126,929
Assumed Gain (Loss) from loan sale	(393)
Interest Rate Movement Effect	548
Servicing Rights Value	678
Total Fair Value Adjustment Gain/(Loss)	833
Notional of open forward delivery contracts [Member]
Fair value measurements
Notional or Principal Amount	353,555
Security Price Change	(2,430)
Total Fair Value Adjustment Gain/(Loss)	(2,430)
Mortgages held for sale [Member]
Fair value measurements
Notional or Principal Amount	250,826
Assumed Gain (Loss) from loan sale	(842)
Interest Rate Movement Effect	720
Servicing Rights Value	1,648
Total Fair Value Adjustment Gain/(Loss)	$ 1,526