Loans and Allowance for Loan Losses Schedule of Loans by Impairment Method (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Loans, Allowance for Loan Losses [Line Items]
Loans, individually evaluated for impairment	$ 3,889	$ 5,076
Loans, collectively evaluated for impairment	1,072,839	987,257
Loans	1,076,728	992,333
Commercial loan [Member]
Loans, Allowance for Loan Losses [Line Items]
Loans, individually evaluated for impairment	747	1,007
Loans, collectively evaluated for impairment	270,273	257,003
Loans	271,020	258,010
Construction, land, and land development [Member]
Loans, Allowance for Loan Losses [Line Items]
Loans, individually evaluated for impairment	1,883	2,460
Loans, collectively evaluated for impairment	145,216	114,934
Loans	147,099	117,394
1-4 family residential first mortgages [Member]
Loans, Allowance for Loan Losses [Line Items]
Loans, individually evaluated for impairment	325	846
Loans, collectively evaluated for impairment	50,446	49,503
Loans	50,771	50,349
Home equity [Member]
Loans, Allowance for Loan Losses [Line Items]
Loans, individually evaluated for impairment	239	0
Loans, collectively evaluated for impairment	22,476	25,205
Loans	22,715	25,205
Commercial real estate [Member]
Loans, Allowance for Loan Losses [Line Items]
Loans, individually evaluated for impairment	695	763
Loans, collectively evaluated for impairment	574,845	531,376
Loans	575,540	532,139
Consumer and other loans [Member]
Loans, Allowance for Loan Losses [Line Items]
Loans, individually evaluated for impairment	0	0
Loans, collectively evaluated for impairment	9,583	9,236
Loans	$ 9,583	$ 9,236