Loans (Details 7) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012	Dec. 31, 2011
Loans individually and collectively evaluated for impairment and the corresponding allowance for loan losses
Individually Evaluated For Impairment, Loans	$ 18,386	$ 19,369
Individually Evaluated For Impairment, Allowance	1,065	1,408
Collectively Evaluated For Impairment, Loans	935,777	889,210
Collectively Evaluated For Impairment, Allowance	19,478	18,540
Total Evaluated For Impairment, Loans	954,163	908,579
Total Evaluated For Impairment, Allowance	20,543	19,948	19,304	18,540
Commercial
Loans individually and collectively evaluated for impairment and the corresponding allowance for loan losses
Individually Evaluated For Impairment, Loans	449	676
Collectively Evaluated For Impairment, Loans	470,751	435,617
Collectively Evaluated For Impairment, Allowance	7,582	6,394
Total Evaluated For Impairment, Loans	471,200	436,293
Total Evaluated For Impairment, Allowance	7,582	6,394	5,922	5,545
Real estate construction
Loans individually and collectively evaluated for impairment and the corresponding allowance for loan losses
Collectively Evaluated For Impairment, Loans	37,975	35,501
Collectively Evaluated For Impairment, Allowance	721	673
Total Evaluated For Impairment, Loans	37,975	35,501
Total Evaluated For Impairment, Allowance	721	673	1,587	1,220
Land loans
Loans individually and collectively evaluated for impairment and the corresponding allowance for loan losses
Individually Evaluated For Impairment, Loans	9	11
Collectively Evaluated For Impairment, Loans	10,344	8,962
Collectively Evaluated For Impairment, Allowance	320	333
Total Evaluated For Impairment, Loans	10,353	8,973
Total Evaluated For Impairment, Allowance	320	333	508	613
Real estate other
Loans individually and collectively evaluated for impairment and the corresponding allowance for loan losses
Individually Evaluated For Impairment, Loans	13,990	14,685
Individually Evaluated For Impairment, Allowance	1,065	1,408
Collectively Evaluated For Impairment, Loans	122,254	125,246
Collectively Evaluated For Impairment, Allowance	3,256	3,770
Total Evaluated For Impairment, Loans	136,244	139,931
Total Evaluated For Impairment, Allowance	4,321	5,178	6,162	6,111
Factoring and asset based
Loans individually and collectively evaluated for impairment and the corresponding allowance for loan losses
Individually Evaluated For Impairment, Loans	1,518	1,450
Collectively Evaluated For Impairment, Loans	199,313	193,893
Collectively Evaluated For Impairment, Allowance	4,731	4,352
Total Evaluated For Impairment, Loans	200,831	195,343
Total Evaluated For Impairment, Allowance	4,731	4,352	2,735	2,381
SBA
Loans individually and collectively evaluated for impairment and the corresponding allowance for loan losses
Individually Evaluated For Impairment, Loans	2,420	2,547
Collectively Evaluated For Impairment, Loans	89,473	84,828
Collectively Evaluated For Impairment, Allowance	2,743	2,905
Total Evaluated For Impairment, Loans	91,893	87,375
Total Evaluated For Impairment, Allowance	2,743	2,905	2,300	2,567
Other
Loans individually and collectively evaluated for impairment and the corresponding allowance for loan losses
Collectively Evaluated For Impairment, Loans	5,667	5,163
Collectively Evaluated For Impairment, Allowance	125	113
Total Evaluated For Impairment, Loans	5,667	5,163
Total Evaluated For Impairment, Allowance	$ 125	$ 113	$ 90	$ 103