Non-performing Loans and Impaired Loans (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Unpaid Principal Balance total
Unpaid Principal Balance total	$ 9,390	$ 8,796	$ 9,390	$ 8,796
Recorded Investment total
Total ending loans balance	9,427	8,798	9,427	8,798
Allowance For Loan Loss Allocated	2,398	2,463	2,398	2,463
Average Balance in Impaired Loans total
Average Balance in Impaired Loans total	10,908	8,490	9,917	7,966
Cash/Accrual Interest Income Recognized total
Cash/Accrual Interest Income Recognized, Total	48	20	73	35
Commercial [Member]
Unpaid Principal Balance total
Unpaid Principal Balance With no recorded allowance	4,687	2,043	4,687	2,043
Unpaid Principal Balance With an allowance recorded	4,703	6,753	4,703	6,753
Recorded Investment total
Recorded Investment With no recorded allowance	4,712	2,043	4,712	2,043
Recorded Investment With an allowance recorded	4,715	6,755	4,715	6,755
Allowance For Loan Loss Allocated	2,398	2,463	2,398	2,463
Average Balance in Impaired Loans total
Average Balance in Impaired Loans With no recorded allowance	6,119	2,162	5,747	2,049
Average Balance in Impaired Loans With an allowance recorded	4,789	6,328	4,170	5,917
Cash/Accrual Interest Income Recognized total
Cash/Accrual Interest Income Recognized, With no recorded allowance	28	3	53	11
Cash/Accrual Interest Income Recognized, With an allowance recorded	20	17	20	24
Commercial [Member] | Owner occupied real estate [Member]
Unpaid Principal Balance total
Unpaid Principal Balance With no recorded allowance	1,142	1,350	1,142	1,350
Unpaid Principal Balance With an allowance recorded	172	1,606	172	1,606
Recorded Investment total
Recorded Investment With no recorded allowance	1,146	1,350	1,146	1,350
Recorded Investment With an allowance recorded	172	1,606	172	1,606
Allowance For Loan Loss Allocated	30	475	30	475
Average Balance in Impaired Loans total
Average Balance in Impaired Loans With no recorded allowance	1,750	1,403	1,785	1,343
Average Balance in Impaired Loans With an allowance recorded	216	1,161	222	1,127
Cash/Accrual Interest Income Recognized total
Cash/Accrual Interest Income Recognized, With no recorded allowance	13		27	2
Cash/Accrual Interest Income Recognized, With an allowance recorded		17		18
Commercial [Member] | Non owner occupied real estate [Member]
Unpaid Principal Balance total
Unpaid Principal Balance With no recorded allowance	2,579	422	2,579	422
Unpaid Principal Balance With an allowance recorded	1,795	3,682	1,795	3,682
Recorded Investment total
Recorded Investment With no recorded allowance	2,584	422	2,584	422
Recorded Investment With an allowance recorded	1,795	3,684	1,795	3,684
Allowance For Loan Loss Allocated	1,097	1,100	1,097	1,100
Average Balance in Impaired Loans total
Average Balance in Impaired Loans With no recorded allowance	2,710	389	2,439	392
Average Balance in Impaired Loans With an allowance recorded	1,799	3,685	1,809	3,524
Cash/Accrual Interest Income Recognized total
Cash/Accrual Interest Income Recognized, With no recorded allowance	12	2	23	3
Commercial [Member] | Residential development [Member]
Unpaid Principal Balance total
Unpaid Principal Balance With no recorded allowance
Unpaid Principal Balance With an allowance recorded
Recorded Investment total
Recorded Investment With no recorded allowance
Recorded Investment With an allowance recorded
Allowance For Loan Loss Allocated
Average Balance in Impaired Loans total
Average Balance in Impaired Loans With no recorded allowance
Average Balance in Impaired Loans With an allowance recorded
Cash/Accrual Interest Income Recognized total
Cash/Accrual Interest Income Recognized, With no recorded allowance
Cash/Accrual Interest Income Recognized, With an allowance recorded
Commercial [Member] | Development & Spec Land Loans [Member]
Unpaid Principal Balance total
Unpaid Principal Balance With no recorded allowance	60	14	60	14
Unpaid Principal Balance With an allowance recorded	673	661	673	661
Recorded Investment total
Recorded Investment With no recorded allowance	60	14	60	14
Recorded Investment With an allowance recorded	673	661	673	661
Allowance For Loan Loss Allocated	425	615	425	615
Average Balance in Impaired Loans total
Average Balance in Impaired Loans With no recorded allowance	64	5	45	2
Average Balance in Impaired Loans With an allowance recorded	702	676	706	455
Cash/Accrual Interest Income Recognized total
Cash/Accrual Interest Income Recognized, With no recorded allowance		1		1
Cash/Accrual Interest Income Recognized, With an allowance recorded				6
Commercial [Member] | Commercial and industrial [Member]
Unpaid Principal Balance total
Unpaid Principal Balance With no recorded allowance	906	257	906	257
Unpaid Principal Balance With an allowance recorded	2,063	804	2,063	804
Recorded Investment total
Recorded Investment With no recorded allowance	922	257	922	257
Recorded Investment With an allowance recorded	2,075	804	2,075	804
Allowance For Loan Loss Allocated	846	273	846	273
Average Balance in Impaired Loans total
Average Balance in Impaired Loans With no recorded allowance	1,595	365	1,478	312
Average Balance in Impaired Loans With an allowance recorded	2,072	806	1,433	811
Cash/Accrual Interest Income Recognized total
Cash/Accrual Interest Income Recognized, With no recorded allowance	3		3	5
Cash/Accrual Interest Income Recognized, With an allowance recorded	$ 20		$ 20