Commitments and Contingencies (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Commitments and Contingencies Disclosure [Abstract]
Reserve For Loan Repurchases	$ 250		$ 250		$ 118
Fee income on standby letters of credit	33	29	89	125
Operating leases rental expense	690	531	2,100	1,400
Unpaid principal balance of loans repurchased	$ 893		$ 893		$ 773