Loans, Troubled Debt Restructuring (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2012 Contract	Jun. 30, 2012 Contract
Loans modified as troubled debt restructurings included in impaired loan balances [Abstract]
Number of Contracts	4	9
Pre-Modification Outstanding Recorded Investment	$ 1,426	$ 2,203
Post-Modification Outstanding Recorded Investment	1,426	2,096
Commercial [Member]
Loans modified as troubled debt restructurings included in impaired loan balances [Abstract]
Number of Contracts	1	1
Pre-Modification Outstanding Recorded Investment	11	11
Post-Modification Outstanding Recorded Investment	11	11
Commercial real estate, portfolio [Member] | Construction and land development [Member]
Loans modified as troubled debt restructurings included in impaired loan balances [Abstract]
Number of Contracts	2	7
Pre-Modification Outstanding Recorded Investment	1,411	2,188
Post-Modification Outstanding Recorded Investment	1,411	2,081
Commercial real estate, portfolio [Member] | Home equity [Member]
Loans modified as troubled debt restructurings included in impaired loan balances [Abstract]
Number of Contracts	0	0
Pre-Modification Outstanding Recorded Investment	0	0
Post-Modification Outstanding Recorded Investment	0	0
Commercial real estate, portfolio [Member] | Commercial real estate [Member]
Loans modified as troubled debt restructurings included in impaired loan balances [Abstract]
Number of Contracts	1	1
Pre-Modification Outstanding Recorded Investment	4	4
Post-Modification Outstanding Recorded Investment	4	4
Consumer [Member]
Loans modified as troubled debt restructurings included in impaired loan balances [Abstract]
Number of Contracts	0	0
Pre-Modification Outstanding Recorded Investment	0	0
Post-Modification Outstanding Recorded Investment	$ 0	$ 0