Loans and Allowance for Loan Losses, Age Analysis of Past Due Loans Receivable (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2012
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	$ 2,967	$ 4,460
60 to 89 Days Past Due	2,190	709
90 Days or More Past Due	8,763	9,679
Total Past Due	13,920	14,848
Current	429,000	436,518
Loans receivable, ending balance	442,920	451,366
Carrying Amount > 90 Days and Accruing	3,575	132
Nonaccruals	6,698	10,650	7,382
Commercial and Industrial [Member]
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	84	92
60 to 89 Days Past Due	194	52
90 Days or More Past Due	144	41
Total Past Due	422	185
Current	24,202	26,955
Loans receivable, ending balance	24,624	27,140
Carrying Amount > 90 Days and Accruing	1	0
Nonaccruals	377	643
Commercial Real Estate [Member]
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	1,771	0
60 to 89 Days Past Due	167	0
90 Days or More Past Due	3,533	7,712
Total Past Due	5,471	7,712
Current	180,252	185,293
Loans receivable, ending balance	185,723	193,005
Carrying Amount > 90 Days and Accruing	0	0
Nonaccruals	3,700	7,712
Construction and Land [Member]
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	0	508
60 to 89 Days Past Due	0	250
90 Days or More Past Due	136	136
Total Past Due	136	894
Current	38,534	39,151
Loans receivable, ending balance	38,670	40,045
Carrying Amount > 90 Days and Accruing	0	0
Nonaccruals	136	136
Consumer [Member]
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	67	39
60 to 89 Days Past Due	50	10
90 Days or More Past Due	0	5
Total Past Due	117	54
Current	3,356	4,513
Loans receivable, ending balance	3,473	4,567
Carrying Amount > 90 Days and Accruing	0	1
Nonaccruals	0	4
Residential Real Estate [Member]
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	115	2,397
60 to 89 Days Past Due	1,194	397
90 Days or More Past Due	915	1,474
Total Past Due	2,224	4,268
Current	134,857	132,322
Loans receivable, ending balance	137,081	136,590
Carrying Amount > 90 Days and Accruing	0	0
Nonaccruals	2,024	1,927
Home Equity Line of Credit [Member]
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	126	1,424
60 to 89 Days Past Due	182	0
90 Days or More Past Due	815	311
Total Past Due	1,123	1,735
Current	42,339	43,290
Loans receivable, ending balance	43,462	45,025
Carrying Amount > 90 Days and Accruing	354	131
Nonaccruals	461	228
Student US Government Guaranteed [Member]
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	804	0
60 to 89 Days Past Due	403	0
90 Days or More Past Due	3,220	0
Total Past Due	4,427	0
Current	5,460	4,994
Loans receivable, ending balance	9,887	4,994
Carrying Amount > 90 Days and Accruing	3,220	0
Nonaccruals		$ 0