Fair Value (Details 1) (USD $) In Thousands	6 Months Ended	12 Months Ended	18 Months Ended
	Jun. 30, 2011	Dec. 31, 2010	Jun. 30, 2011
Unrealized gain or loss from change in fair value measurements included in earnings
Notional or Principal Amount	$ 179,833		$ 179,833
Assumed Gain (Loss) from loan sale	18	(1,366)	(1,348)
Interest Rate Movement Effect	5,893	(6,534)	(641)
Servicing Rights Value	150	4,004	4,154
Security Price Change	(4,064)	4,904	840
Total Fair Value Adjustment Gain/(Loss)	1,997	1,008	3,005
Rate Lock Commitments [Member]
Unrealized gain or loss from change in fair value measurements included in earnings
Notional or Principal Amount	158,084		158,084
Assumed Gain (Loss) from loan sale	(536)
Interest Rate Movement Effect	(887)
Servicing Rights Value	1,896
Total Fair Value Adjustment Gain/(Loss)	473
Forward Sales Contracts [Member]
Unrealized gain or loss from change in fair value measurements included in earnings
Notional or Principal Amount	316,053		316,053
Security Price Change	840
Total Fair Value Adjustment Gain/(Loss)	840
Mortgages held for sale [Member]
Unrealized gain or loss from change in fair value measurements included in earnings
Notional or Principal Amount	179,833		179,833
Assumed Gain (Loss) from loan sale	(812)
Interest Rate Movement Effect	246
Servicing Rights Value	2,258
Total Fair Value Adjustment Gain/(Loss)	$ 1,692