Loans and Allowance for Loan Losses (Details 7) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	$ 860,985	$ 839,547
Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	71,935	73,515
Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	24,158	32,418
Non-accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	24,380	23,680
Total Watch, Substandard, and Non-Accrual Loans
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	120,473	129,613
Commercial, Financial, and Agricultural
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	150,733	141,845
Commercial, Financial, and Agricultural | Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	18,254	15,016
Commercial, Financial, and Agricultural | Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	5,197	7,553
Commercial, Financial, and Agricultural | Non-accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	2,036	1,684
Commercial, Financial, and Agricultural | Total Watch, Substandard, and Non-Accrual Loans
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	25,487	24,253
Real Estate Construction - Residential
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	19,935	21,008
Real Estate Construction - Residential | Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	1,329	2,007
Real Estate Construction - Residential | Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	91	92
Real Estate Construction - Residential | Non-accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	2,040	2,204
Real Estate Construction - Residential | Total Watch, Substandard, and Non-Accrual Loans
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	3,460	4,303
Real Estate Construction - Commercial
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	62,391	55,076
Real Estate Construction - Commercial | Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	5,027	6,111
Real Estate Construction - Commercial | Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	1,190	1,403
Real Estate Construction - Commercial | Non-accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	5,678	6,251
Real Estate Construction - Commercial | Total Watch, Substandard, and Non-Accrual Loans
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	11,895	13,765
Real Estate Mortgage - Residential
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	234,244	225,630
Real Estate Mortgage - Residential | Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	25,755	26,331
Real Estate Mortgage - Residential | Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	7,545	8,579
Real Estate Mortgage - Residential | Non-accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	5,175	4,165
Real Estate Mortgage - Residential | Total Watch, Substandard, and Non-Accrual Loans
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	38,475	39,075
Real Estate Mortgage - Commercial
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	374,909	375,686
Real Estate Mortgage - Commercial | Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	21,332	23,662
Real Estate Mortgage - Commercial | Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	9,965	14,510
Real Estate Mortgage - Commercial | Non-accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	9,183	9,074
Real Estate Mortgage - Commercial | Total Watch, Substandard, and Non-Accrual Loans
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	40,480	47,246
Installment and other Consumer | Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	238	388
Installment and other Consumer | Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	170	281
Installment and other Consumer | Non-accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	268	302
Installment and other Consumer | Total Watch, Substandard, and Non-Accrual Loans
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	$ 676	$ 971