Credit Quality Assessment (Details 4) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2012	Dec. 31, 2011
Impaired loans, Recorded Investment	$ 6,027	$ 6,027	$ 8,933
Impaired loans, Recorded investment, With an allowance recorded	1,249	1,249	2,296
Impaired loans, Recorded investment, With no related allowance recorded	4,778	4,778	6,637
Impaired loans, Related allowance	433	433	1,273
Impaired loans, Un-paid principal	6,118	6,118	10,001
Average balance of impaired loans	6,679	6,848	10,078
Interest income recognized	135	268	348
Construction and Land [Member]
Impaired loans, Recorded Investment	432	432	0
Impaired loans, Recorded investment, With an allowance recorded	432	432	0
Impaired loans, Recorded investment, With no related allowance recorded	0	0	0
Impaired loans, Related allowance	103	103	0
Impaired loans, Un-paid principal	432	432	0
Average balance of impaired loans	432	441	0
Interest income recognized	18	18	0
Residential First Lien [Member]
Impaired loans, Recorded Investment	471	471	611
Impaired loans, Recorded investment, With an allowance recorded	233	233	368
Impaired loans, Recorded investment, With no related allowance recorded	238	238	243
Impaired loans, Related allowance	73	73	68
Impaired loans, Un-paid principal	471	471	611
Average balance of impaired loans	472	472	609
Interest income recognized	0	7	23
Residential Junior Lien [Member]
Impaired loans, Recorded Investment	0	0	44
Impaired loans, Recorded investment, With an allowance recorded	0	0	44
Impaired loans, Recorded investment, With no related allowance recorded	0	0	0
Impaired loans, Related allowance	0	0	44
Impaired loans, Un-paid principal	0	0	44
Average balance of impaired loans	0	0	44
Interest income recognized	0	0	2
Commercial Owner Occupied [Member]
Impaired loans, Recorded Investment	0	0	1,988
Impaired loans, Recorded investment, With an allowance recorded	0	0	0
Impaired loans, Recorded investment, With no related allowance recorded	0	0	1,988
Impaired loans, Related allowance	0	0	0
Impaired loans, Un-paid principal	0	0	3,021
Average balance of impaired loans	0	0	3,044
Interest income recognized	0	0	52
Commercial Non Owner Occupied [Member]
Impaired loans, Recorded Investment	3,146	3,146	2,783
Impaired loans, Recorded investment, With an allowance recorded	0	0	0
Impaired loans, Recorded investment, With no related allowance recorded	3,146	3,146	2,783
Impaired loans, Related allowance	0	0	0
Impaired loans, Un-paid principal	3,081	3,081	2,783
Average balance of impaired loans	3,510	3,517	2,778
Interest income recognized	48	155	114
Commercial Loan and Leases [Member]
Impaired loans, Recorded Investment	1,978	1,978	3,498
Impaired loans, Recorded investment, With an allowance recorded	584	584	1,884
Impaired loans, Recorded investment, With no related allowance recorded	1,394	1,394	1,614
Impaired loans, Related allowance	257	257	1,161
Impaired loans, Un-paid principal	2,134	2,134	3,533
Average balance of impaired loans	2,265	2,418	3,593
Interest income recognized	69	88	157
Consumer Loan [Member]
Impaired loans, Recorded Investment	0	0	9
Impaired loans, Recorded investment, With an allowance recorded	0	0	0
Impaired loans, Recorded investment, With no related allowance recorded	0	0	9
Impaired loans, Related allowance	0	0	0
Impaired loans, Un-paid principal	0	0	9
Average balance of impaired loans	0	0	9
Interest income recognized	$ 0	$ 0	$ 0