Loans and Allowance for Loan Losses (Details 7) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	$ 875,312	$ 865,080
Loans Receivable
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	875,312	865,080
Loans Receivable | Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	55,578	57,906
Loans Receivable | Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	3,809	5,716
Loans Receivable | Performing TDRs
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	5,852	5,850
Loans Receivable | Non-accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	3,072	4,418
Loans Receivable | Total
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	68,311	73,890
Loans Receivable | Commercial, Financial, and Agricultural
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	148,040	149,091
Loans Receivable | Commercial, Financial, and Agricultural | Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	7,152	8,663
Loans Receivable | Commercial, Financial, and Agricultural | Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	230	421
Loans Receivable | Commercial, Financial, and Agricultural | Performing TDRs
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	683	697
Loans Receivable | Commercial, Financial, and Agricultural | Non-accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	259	308
Loans Receivable | Commercial, Financial, and Agricultural | Total
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	8,324	10,089
Loans Receivable | Real Estate Construction - Residential
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	18,017	16,830
Loans Receivable | Real Estate Construction - Residential | Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	1,064	1,267
Loans Receivable | Real Estate Construction - Residential | Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	0	0
Loans Receivable | Real Estate Construction - Residential | Performing TDRs
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	0	0
Loans Receivable | Real Estate Construction - Residential | Non-accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	0	0
Loans Receivable | Real Estate Construction - Residential | Total
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	1,064	1,267
Loans Receivable | Real estate - construction - commercial
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	36,322	33,943
Loans Receivable | Real estate - construction - commercial | Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	1,162	1,296
Loans Receivable | Real estate - construction - commercial | Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	37	37
Loans Receivable | Real estate - construction - commercial | Performing TDRs
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	0	0
Loans Receivable | Real estate - construction - commercial | Non-accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	52	102
Loans Receivable | Real estate - construction - commercial | Total
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	1,251	1,435
Loans Receivable | Real Estate Mortgage - Residential
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	254,933	256,086
Loans Receivable | Real Estate Mortgage - Residential | Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	23,291	22,191
Loans Receivable | Real Estate Mortgage - Residential | Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	1,929	3,737
Loans Receivable | Real Estate Mortgage - Residential | Performing TDRs
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	3,639	3,615
Loans Receivable | Real Estate Mortgage - Residential | Non-accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	1,726	2,322
Loans Receivable | Real Estate Mortgage - Residential | Total
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	30,585	31,865
Loans Receivable | Real Estate Mortgage - Commercial
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	392,991	385,869
Loans Receivable | Real Estate Mortgage - Commercial | Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	22,909	24,303
Loans Receivable | Real Estate Mortgage - Commercial | Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	1,613	1,485
Loans Receivable | Real Estate Mortgage - Commercial | Performing TDRs
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	1,530	1,538
Loans Receivable | Real Estate Mortgage - Commercial | Non-accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	904	1,542
Loans Receivable | Real Estate Mortgage - Commercial | Total
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	26,956	28,868
Loans Receivable | Installment and other Consumer | Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	0	186
Loans Receivable | Installment and other Consumer | Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	0	36
Loans Receivable | Installment and other Consumer | Performing TDRs
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	0	0
Loans Receivable | Installment and other Consumer | Non-accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	131	144
Loans Receivable | Installment and other Consumer | Total
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	$ 131	$ 366