Fair Values (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Reconciliation of assets and liabilities measured at fair value significant unobservable inputs recurring basis
Beginning balance	$ 200	$ 596	$ 600	$ 986
Transfers into Level 3	0	0	0	0
Change included in earnings	0	0	0	(10)
Purchases and issuances	0	0	0	0
Sales and settlements	0	0	(400)	(400)
Ending balance	200	596	200	596
Net change in unrealized gains or (losses) relating to items held at end of period	0	0	0	0
Derivatives - interest rate lock commitments [Member]
Reconciliation of assets and liabilities measured at fair value significant unobservable inputs recurring basis
Beginning balance	(16)		179
Transfers into Level 3	0		0
Change included in earnings	247		52
Purchases and issuances	0		0
Sales and settlements	0		0
Ending balance	231		231
Net change in unrealized gains or (losses) relating to items held at end of period	$ 0		$ 0