Fair Values (Details 3) (USD $) In Thousands, unless otherwise specified	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended
	Jun. 30, 2013 Obligations of states and political subdivisions [Member]	Jun. 30, 2013 Mortgage Backed Securities [Member]	Jun. 30, 2013 Mortgage Backed Securities [Member]	Jun. 30, 2012 Derivatives - interest rate lock commitments (1) [Member]	Jun. 30, 2012 Derivatives - interest rate lock commitments (1) [Member]	Jun. 30, 2012 Earn out payable (1) (2) [Member]	Jun. 30, 2012 Earn out payable (1) (2) [Member]
Reconciliation of assets and liabilities measured at fair value significant unobservable inputs (Level 3) recurring basis
Beginning balance	$ 1,131	$ 750	$ 13,747	$ (16)	$ 179	$ 200	$ 600
Transfers into Level 3		0		0	0	0	0
Change included in earnings	0	0	0	247	52	0	0
Purchases and issuances	0	0	0	0	0	0	0
Sales and settlements	0	0	(749)	0	0	0	(400)
Transfers out	(1,131)	(750)	(12,998)	0	0	0	0
Ending balance	0	0	0	231	231	200	200
Net change in unrealized gains or (losses) relating to items held at end of period	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0