Loans and Allowance for Loan Losses (Details 7) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	$ 922,942	$ 865,080
Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	74,660	57,906
Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	3,451	5,716
Performing TDRs
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	5,798	5,850
Non-accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	3,647	4,418
Total
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	87,556	73,890
Commercial, financial, and agricultural
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	160,124	149,091
Commercial, financial, and agricultural | Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	10,876	8,663
Commercial, financial, and agricultural | Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	219	421
Commercial, financial, and agricultural | Performing TDRs
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	667	697
Commercial, financial, and agricultural | Non-accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	1,237	308
Commercial, financial, and agricultural | Total
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	12,999	10,089
Residential real estate | Construction
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	14,995	16,895
Residential real estate | Construction | Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	828	1,267
Residential real estate | Construction | Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	0	0
Residential real estate | Construction | Performing TDRs
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	0	0
Residential real estate | Construction | Non-accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	0	0
Residential real estate | Construction | Total
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	828	1,267
Residential real estate | Mortgage
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	250,588	256,086
Residential real estate | Mortgage | Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	18,022	22,191
Residential real estate | Mortgage | Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	1,881	3,737
Residential real estate | Mortgage | Performing TDRs
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	3,612	3,615
Residential real estate | Mortgage | Non-accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	1,417	2,322
Residential real estate | Mortgage | Total
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	24,932	31,865
Real estate - commercial | Construction
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	46,218	33,943
Real estate - commercial | Construction | Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	1,187	1,296
Real estate - commercial | Construction | Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	0	37
Real estate - commercial | Construction | Performing TDRs
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	0	0
Real estate - commercial | Construction | Non-accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	52	102
Real estate - commercial | Construction | Total
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	1,239	1,435
Real estate - commercial | Mortgage
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	425,124	385,869
Real estate - commercial | Mortgage | Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	43,747	24,303
Real estate - commercial | Mortgage | Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	1,351	1,485
Real estate - commercial | Mortgage | Performing TDRs
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	1,519	1,538
Real estate - commercial | Mortgage | Non-accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	841	1,542
Real estate - commercial | Mortgage | Total
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	47,458	28,868
Installment and other consumer
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	25,893	23,196
Installment and other consumer | Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	0	186
Installment and other consumer | Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	0	36
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
Installment and other consumer | Non-accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	100	144
Installment and other consumer | Total
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Financing receivable	$ 100	$ 366