Non-performing Assets and Impaired Loans (Details 3) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Unpaid Principal Balance total
Unpaid Principal Balance total	$ 10,597	$ 7,958
Recorded Investment total
Total ending loans balance	10,627	7,960
Allowance For Loan Loss Allocated	1,945	2,136
Average Balance in Impaired Loans total
Average Balance in Impaired Loans total	6,137	4,841
Cash/Accrual Interest Income Recognized total
Cash/Accrual Interest Income Recognized, Total	201	181
Commercial [Member]
Unpaid Principal Balance total
Unpaid Principal Balance With no recorded allowance	7,433	1,632
Unpaid Principal Balance With an allowance recorded	3,164	6,326
Recorded Investment total
Recorded Investment With no recorded allowance	7,463	1,634
Recorded Investment With an allowance recorded	3,164	6,326
Allowance For Loan Loss Allocated	1,945	2,136
Average Balance in Impaired Loans total
Average Balance in Impaired Loans With no recorded allowance	4,324	1,261
Average Balance in Impaired Loans With an allowance recorded	1,813	3,580
Cash/Accrual Interest Income Recognized total
Cash/Accrual Interest Income Recognized, With no recorded allowance	100	51
Cash/Accrual Interest Income Recognized, With an allowance recorded	101	130
Commercial [Member] | Owner occupied real estate [Member]
Unpaid Principal Balance total
Unpaid Principal Balance With no recorded allowance	4,890	192
Unpaid Principal Balance With an allowance recorded		2,323
Recorded Investment total
Recorded Investment With no recorded allowance	4,901	192
Recorded Investment With an allowance recorded		2,323
Allowance For Loan Loss Allocated		770
Average Balance in Impaired Loans total
Average Balance in Impaired Loans With no recorded allowance	2,422	110
Average Balance in Impaired Loans With an allowance recorded		1,911
Cash/Accrual Interest Income Recognized total
Cash/Accrual Interest Income Recognized, With no recorded allowance	80	2
Cash/Accrual Interest Income Recognized, With an allowance recorded		25
Commercial [Member] | Non owner occupied real estate [Member]
Unpaid Principal Balance total
Unpaid Principal Balance With no recorded allowance	1,961	954
Unpaid Principal Balance With an allowance recorded	1,795	3,168
Recorded Investment total
Recorded Investment With no recorded allowance	1,963	956
Recorded Investment With an allowance recorded	1,795	3,168
Allowance For Loan Loss Allocated	1,080	1,080
Average Balance in Impaired Loans total
Average Balance in Impaired Loans With no recorded allowance	1,544	639
Average Balance in Impaired Loans With an allowance recorded	481	830
Cash/Accrual Interest Income Recognized total
Cash/Accrual Interest Income Recognized, With no recorded allowance	20	43
Cash/Accrual Interest Income Recognized, With an allowance recorded	95	83
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	133	90
Unpaid Principal Balance With an allowance recorded	572
Recorded Investment total
Recorded Investment With no recorded allowance	133	90
Recorded Investment With an allowance recorded	572
Allowance For Loan Loss Allocated	600
Average Balance in Impaired Loans total
Average Balance in Impaired Loans With no recorded allowance	61	157
Average Balance in Impaired Loans With an allowance recorded	526
Cash/Accrual Interest Income Recognized total
Cash/Accrual Interest Income Recognized, With no recorded allowance
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	449	396
Unpaid Principal Balance With an allowance recorded	797	835
Recorded Investment total
Recorded Investment With no recorded allowance	466	396
Recorded Investment With an allowance recorded	797	835
Allowance For Loan Loss Allocated	265	286
Average Balance in Impaired Loans total
Average Balance in Impaired Loans With no recorded allowance	297	355
Average Balance in Impaired Loans With an allowance recorded	806	839
Cash/Accrual Interest Income Recognized total
Cash/Accrual Interest Income Recognized, With no recorded allowance		6
Cash/Accrual Interest Income Recognized, With an allowance recorded		$ 22