Credit Quality of Loans and Allowance for Loan Losses, Credit Quality Indicators and Aging (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013		Mar. 31, 2013
Credit Risk Profile [Abstract]
Loans	$ 1,184,189	$ 1,137,554	[1]	$ 1,037,859
Age Analysis of Past Due Loans by Class of Loans [Abstract]
30-59 Days Past Due	6,878	9,677
60-89 Days Past Due	1,764	2,627
Greater than 90 Days Past Due	5,495	4,297
Total Past Due	14,137	16,601
Current	1,170,052	1,120,953
Total Loans	1,184,189	1,137,554
Recorded Investment > 90 days and Accruing	251	178
Commercial, Financial and Agricultural [Member]
Credit Risk Profile [Abstract]
Loans	435,523	403,976
Age Analysis of Past Due Loans by Class of Loans [Abstract]
30-59 Days Past Due	2,358	4,350
60-89 Days Past Due	851	208
Greater than 90 Days Past Due	1,213	1,256
Total Past Due	4,422	5,814
Current	431,101	398,162
Total Loans	435,523	403,976
Recorded Investment > 90 days and Accruing	123	26
Commercial Real Estate - Construction [Member]
Credit Risk Profile [Abstract]
Loans	60,738	64,893
Age Analysis of Past Due Loans by Class of Loans [Abstract]
30-59 Days Past Due	122	36
60-89 Days Past Due	12	0
Greater than 90 Days Past Due	62	63
Total Past Due	196	99
Current	60,542	64,794
Total Loans	60,738	64,893
Recorded Investment > 90 days and Accruing	0	0
Commercial Real Estate - Other [Member]
Credit Risk Profile [Abstract]
Loans	408,546	397,135
Age Analysis of Past Due Loans by Class of Loans [Abstract]
30-59 Days Past Due	1,474	1,230
60-89 Days Past Due	720	1,447
Greater than 90 Days Past Due	2,937	2,395
Total Past Due	5,131	5,072
Current	403,415	392,063
Total Loans	408,546	397,135
Recorded Investment > 90 days and Accruing	0	141
Commercial Total [Member]
Credit Risk Profile [Abstract]
Loans	904,807	866,004
Percentage of Total Loans (in hundredths)	100.00%	100.00%
Residential - Construction [Member]
Credit Risk Profile [Abstract]
Loans	18,250	17,798
Age Analysis of Past Due Loans by Class of Loans [Abstract]
30-59 Days Past Due	149	149
60-89 Days Past Due	0	0
Greater than 90 Days Past Due	44	0
Total Past Due	193	149
Current	18,057	17,649
Total Loans	18,250	17,798
Recorded Investment > 90 days and Accruing	0	0
Residential - Prime [Member]
Credit Risk Profile [Abstract]
Loans	150,551	146,841
Age Analysis of Past Due Loans by Class of Loans [Abstract]
30-59 Days Past Due	2,206	2,984
60-89 Days Past Due	0	870
Greater than 90 Days Past Due	928	307
Total Past Due	3,134	4,161
Current	147,417	142,680
Total Loans	150,551	146,841
Recorded Investment > 90 days and Accruing	100	0
Residential - Subprime [Member]
Credit Risk Profile [Abstract]
Loans	0	0
Residential Total [Member]
Credit Risk Profile [Abstract]
Loans	168,801	164,639
Percentage of Total Loans (in hundredths)	100.00%	100.00%
Consumer - Credit Card [Member]
Credit Risk Profile [Abstract]
Loans	5,858	6,206
Age Analysis of Past Due Loans by Class of Loans [Abstract]
30-59 Days Past Due	36	36
60-89 Days Past Due	34	0
Greater than 90 Days Past Due	6	7
Total Past Due	76	43
Current	5,782	6,163
Total Loans	5,858	6,206
Recorded Investment > 90 days and Accruing	6	7
Consumer - Other [Member]
Credit Risk Profile [Abstract]
Loans	96,011	91,253
Age Analysis of Past Due Loans by Class of Loans [Abstract]
30-59 Days Past Due	433	767
60-89 Days Past Due	145	102
Greater than 90 Days Past Due	305	269
Total Past Due	883	1,138
Current	95,128	90,115
Total Loans	96,011	91,253
Recorded Investment > 90 days and Accruing	22	4
Lease Financing Receivable [Member]
Credit Risk Profile [Abstract]
Loans	5,102	5,542
Age Analysis of Past Due Loans by Class of Loans [Abstract]
30-59 Days Past Due	0	0
60-89 Days Past Due	0	0
Greater than 90 Days Past Due	0	0
Total Past Due	0	0
Current	5,102	5,542
Total Loans	5,102	5,542
Recorded Investment > 90 days and Accruing	0	0
Other Loans [Member]
Credit Risk Profile [Abstract]
Loans	3,610	3,910
Age Analysis of Past Due Loans by Class of Loans [Abstract]
30-59 Days Past Due	100	125
60-89 Days Past Due	2	0
Greater than 90 Days Past Due	0	0
Total Past Due	102	125
Current	3,508	3,785
Total Loans	3,610	3,910
Recorded Investment > 90 days and Accruing	0	0
Consumer Total [Member]
Credit Risk Profile [Abstract]
Loans	110,581	106,911
Percentage of Total Loans (in hundredths)	100.00%	100.00%
Pass [Member] | Commercial, Financial and Agricultural [Member]
Credit Risk Profile [Abstract]
Loans	424,566	397,513
Pass [Member] | Commercial Real Estate - Construction [Member]
Credit Risk Profile [Abstract]
Loans	60,579	63,577
Pass [Member] | Commercial Real Estate - Other [Member]
Credit Risk Profile [Abstract]
Loans	383,915	371,618
Pass [Member] | Commercial Total [Member]
Credit Risk Profile [Abstract]
Loans	869,060	832,708
Percentage of Total Loans (in hundredths)	96.05%	96.15%
Pass [Member] | Residential - Construction [Member]
Credit Risk Profile [Abstract]
Loans	18,206	17,798
Pass [Member] | Residential - Prime [Member]
Credit Risk Profile [Abstract]
Loans	147,088	143,790
Pass [Member] | Residential - Subprime [Member]
Credit Risk Profile [Abstract]
Loans	0	0
Pass [Member] | Residential Total [Member]
Credit Risk Profile [Abstract]
Loans	165,294	161,588
Percentage of Total Loans (in hundredths)	97.92%	98.15%
Special mention [Member] | Commercial, Financial and Agricultural [Member]
Credit Risk Profile [Abstract]
Loans	6,864	2,962
Special mention [Member] | Commercial Real Estate - Construction [Member]
Credit Risk Profile [Abstract]
Loans	49	49
Special mention [Member] | Commercial Real Estate - Other [Member]
Credit Risk Profile [Abstract]
Loans	7,165	8,781
Special mention [Member] | Commercial Total [Member]
Credit Risk Profile [Abstract]
Loans	14,078	11,792
Percentage of Total Loans (in hundredths)	1.55%	1.36%
Special mention [Member] | Residential - Construction [Member]
Credit Risk Profile [Abstract]
Loans	0	0
Special mention [Member] | Residential - Prime [Member]
Credit Risk Profile [Abstract]
Loans	571	548
Special mention [Member] | Residential - Subprime [Member]
Credit Risk Profile [Abstract]
Loans	0	0
Special mention [Member] | Residential Total [Member]
Credit Risk Profile [Abstract]
Loans	571	548
Percentage of Total Loans (in hundredths)	0.34%	0.33%
Substandard [Member] | Commercial, Financial and Agricultural [Member]
Credit Risk Profile [Abstract]
Loans	3,680	3,272
Substandard [Member] | Commercial Real Estate - Construction [Member]
Credit Risk Profile [Abstract]
Loans	110	1,267
Substandard [Member] | Commercial Real Estate - Other [Member]
Credit Risk Profile [Abstract]
Loans	17,466	16,736
Substandard [Member] | Commercial Total [Member]
Credit Risk Profile [Abstract]
Loans	21,256	21,275
Percentage of Total Loans (in hundredths)	2.35%	2.46%
Substandard [Member] | Residential - Construction [Member]
Credit Risk Profile [Abstract]
Loans	44	0
Substandard [Member] | Residential - Prime [Member]
Credit Risk Profile [Abstract]
Loans	2,892	2,503
Substandard [Member] | Residential - Subprime [Member]
Credit Risk Profile [Abstract]
Loans	0	0
Substandard [Member] | Residential Total [Member]
Credit Risk Profile [Abstract]
Loans	2,936	2,503
Percentage of Total Loans (in hundredths)	1.74%	1.52%
Doubtful [Member] | Commercial, Financial and Agricultural [Member]
Credit Risk Profile [Abstract]
Loans	413	229
Doubtful [Member] | Commercial Real Estate - Construction [Member]
Credit Risk Profile [Abstract]
Loans	0	0
Doubtful [Member] | Commercial Real Estate - Other [Member]
Credit Risk Profile [Abstract]
Loans	0	0
Doubtful [Member] | Commercial Total [Member]
Credit Risk Profile [Abstract]
Loans	413	229
Percentage of Total Loans (in hundredths)	0.05%	0.03%
Performing [Member] | Consumer - Credit Card [Member]
Credit Risk Profile [Abstract]
Loans	5,852	6,196
Performing [Member] | Consumer - Other [Member]
Credit Risk Profile [Abstract]
Loans	95,698	90,978
Performing [Member] | Lease Financing Receivable [Member]
Credit Risk Profile [Abstract]
Loans	5,102	5,542
Performing [Member] | Other Loans [Member]
Credit Risk Profile [Abstract]
Loans	3,610	3,910
Performing [Member] | Consumer Total [Member]
Credit Risk Profile [Abstract]
Loans	110,262	106,626
Percentage of Total Loans (in hundredths)	99.71%	99.73%
Nonperforming [Member] | Consumer - Credit Card [Member]
Credit Risk Profile [Abstract]
Loans	6	10
Nonperforming [Member] | Consumer - Other [Member]
Credit Risk Profile [Abstract]
Loans	313	275
Nonperforming [Member] | Lease Financing Receivable [Member]
Credit Risk Profile [Abstract]
Loans	0	0
Nonperforming [Member] | Other Loans [Member]
Credit Risk Profile [Abstract]
Loans	0	0
Nonperforming [Member] | Consumer Total [Member]
Credit Risk Profile [Abstract]
Loans	$ 319	$ 285
Percentage of Total Loans (in hundredths)	0.29%	0.27%

[1] Derived from audited financial statements.