Loans and Allowance for Loan Losses, Age Analysis of Past Due Loans Receivable (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	$ 10,117	$ 4,460
60 to 89 Days Past Due	792	709
90 Days or More Past Due	7,940	9,679
Total Past Due	18,849	14,848
Current	436,156	436,518
Loans receivable, ending balance	455,005	451,366
Carrying Amount > 90 Days and Accruing	3,630	132
Nonaccruals	5,060	10,650	12,428
Commercial and Industrial [Member]
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	0	92
60 to 89 Days Past Due	0	52
90 Days or More Past Due	162	41
Total Past Due	162	185
Current	24,567	26,955
Loans receivable, ending balance	24,729	27,140
Carrying Amount > 90 Days and Accruing	0	0
Nonaccruals	386	643
Commercial Real Estate [Member]
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	0	0
60 to 89 Days Past Due	0	0
90 Days or More Past Due	3,133	7,712
Total Past Due	3,133	7,712
Current	180,169	185,293
Loans receivable, ending balance	183,302	193,005
Carrying Amount > 90 Days and Accruing	0	0
Nonaccruals	3,133	7,712
Construction and Land [Member]
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	61	508
60 to 89 Days Past Due	0	250
90 Days or More Past Due	136	136
Total Past Due	197	894
Current	35,635	39,151
Loans receivable, ending balance	35,832	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	37	39
60 to 89 Days Past Due	0	10
90 Days or More Past Due	1	5
Total Past Due	38	54
Current	3,718	4,513
Loans receivable, ending balance	3,756	4,567
Carrying Amount > 90 Days and Accruing	1	1
Nonaccruals	0	4
Residential Real Estate [Member]
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	593	2,397
60 to 89 Days Past Due	486	397
90 Days or More Past Due	879	1,474
Total Past Due	1,958	4,268
Current	137,598	132,322
Loans receivable, ending balance	139,556	136,590
Carrying Amount > 90 Days and Accruing	0	0
Nonaccruals	1,405	1,927
Home Equity Line of Credit [Member]
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	27	1,424
60 to 89 Days Past Due	0	0
90 Days or More Past Due	0	311
Total Past Due	27	1,735
Current	43,225	43,290
Loans receivable, ending balance	43,252	45,025
Carrying Amount > 90 Days and Accruing	0	131
Nonaccruals	0	228
Student US Government Guaranteed [Member]
Age analysis of past due loans receivable [Abstract]
30 to 59 Days Past Due	9,399	0
60 to 89 Days Past Due	306	0
90 Days or More Past Due	3,629	0
Total Past Due	13,334	0
Current	11,244	4,994
Loans receivable, ending balance	24,578	4,994
Carrying Amount > 90 Days and Accruing	3,629	0
Nonaccruals		$ 0