Loans and Allowance for Loan Losses (Past Due Status) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	$ 18,016	$ 25,288
Total past due and nonaccrual	39,584	51,628
Current and accruing	1,504,211	1,306,160
Total Loans	1,543,795	1,357,788
Commercial and agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	152,306	113,413
Real estate - construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	107,002	78,327
Real estate - mortgage, 1-4 family residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	687,554	667,602
Real estate - mortgage, Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	489,113	426,328
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	107,820	72,118
PC and Originated Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	18,016	25,288
Total past due and nonaccrual	25,192	29,474
Current and accruing	1,431,039	1,205,472
Total Loans	1,456,231	1,234,946
PC and Originated Loans [Member] | Commercial and agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	1,053	608
Total past due and nonaccrual	1,054	608
Current and accruing	146,257	105,269
Total Loans	147,311	105,877
PC and Originated Loans [Member] | Real estate - construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	110	2,307
Total past due and nonaccrual	1,011	2,407
Current and accruing	98,247	66,723
Total Loans	99,258	69,130
PC and Originated Loans [Member] | Real estate - mortgage, 1-4 family residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	9,106	8,637
Total past due and nonaccrual	13,207	11,503
Current and accruing	660,430	638,364
Total Loans	673,637	649,867
PC and Originated Loans [Member] | Real estate - mortgage, Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	7,209	13,381
Total past due and nonaccrual	7,904	13,627
Current and accruing	421,220	325,356
Total Loans	429,124	338,983
PC and Originated Loans [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	538	355
Total past due and nonaccrual	2,016	1,329
Current and accruing	104,885	69,760
Total Loans	106,901	71,089
PI loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	0	0
Total past due and nonaccrual	14,392	22,154
Current and accruing	73,172	100,688
Total Loans	87,564	122,842
PI loans [Member] | Commercial and agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	0	0
Total past due and nonaccrual	1,720	2,232
Current and accruing	3,275	5,303
Total Loans	4,995	7,535
PI loans [Member] | Real estate - construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	0	0
Total past due and nonaccrual	1,455	3,737
Current and accruing	6,289	5,460
Total Loans	7,744	9,197
PI loans [Member] | Real estate - mortgage, 1-4 family residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	0	0
Total past due and nonaccrual	1,744	2,803
Current and accruing	12,173	14,934
Total Loans	13,917	17,737
PI loans [Member] | Real estate - mortgage, Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	0	0
Total past due and nonaccrual	9,459	13,370
Current and accruing	50,530	73,975
Total Loans	59,989	87,345
PI loans [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	0	0
Total past due and nonaccrual	14	12
Current and accruing	905	1,016
Total Loans	919	1,028
30 to 59 days past due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	6,588	4,536
30 to 59 days past due [Member] | PC and Originated Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	5,359	3,668
30 to 59 days past due [Member] | PC and Originated Loans [Member] | Commercial and agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
30 to 59 days past due [Member] | PC and Originated Loans [Member] | Real estate - construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	761	100
30 to 59 days past due [Member] | PC and Originated Loans [Member] | Real estate - mortgage, 1-4 family residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	2,710	2,719
30 to 59 days past due [Member] | PC and Originated Loans [Member] | Real estate - mortgage, Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	661	105
30 to 59 days past due [Member] | PC and Originated Loans [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	1,227	744
30 to 59 days past due [Member] | PI loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	1,229	868
30 to 59 days past due [Member] | PI loans [Member] | Commercial and agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	102	0
30 to 59 days past due [Member] | PI loans [Member] | Real estate - construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
30 to 59 days past due [Member] | PI loans [Member] | Real estate - mortgage, 1-4 family residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	602	579
30 to 59 days past due [Member] | PI loans [Member] | Real estate - mortgage, Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	517	287
30 to 59 days past due [Member] | PI loans [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	8	2
60 to 89 days past due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	1,137	647
60 to 89 days past due [Member] | PC and Originated Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	999	513
60 to 89 days past due [Member] | PC and Originated Loans [Member] | Commercial and agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	1	0
60 to 89 days past due [Member] | PC and Originated Loans [Member] | Real estate - construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	140	0
60 to 89 days past due [Member] | PC and Originated Loans [Member] | Real estate - mortgage, 1-4 family residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	574	147
60 to 89 days past due [Member] | PC and Originated Loans [Member] | Real estate - mortgage, Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	34	141
60 to 89 days past due [Member] | PC and Originated Loans [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	250	225
60 to 89 days past due [Member] | PI loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	138	134
60 to 89 days past due [Member] | PI loans [Member] | Commercial and agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
60 to 89 days past due [Member] | PI loans [Member] | Real estate - construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
60 to 89 days past due [Member] | PI loans [Member] | Real estate - mortgage, 1-4 family residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	15	15
60 to 89 days past due [Member] | PI loans [Member] | Real estate - mortgage, Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	123	119
60 to 89 days past due [Member] | PI loans [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
More than 90 days past due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	13,843	21,157
More than 90 days past due [Member] | PC and Originated Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	818	5
More than 90 days past due [Member] | PC and Originated Loans [Member] | Commercial and agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
More than 90 days past due [Member] | PC and Originated Loans [Member] | Real estate - construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
More than 90 days past due [Member] | PC and Originated Loans [Member] | Real estate - mortgage, 1-4 family residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	817	0
More than 90 days past due [Member] | PC and Originated Loans [Member] | Real estate - mortgage, Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
More than 90 days past due [Member] | PC and Originated Loans [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	1	5
More than 90 days past due [Member] | PI loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	13,025	21,152
More than 90 days past due [Member] | PI loans [Member] | Commercial and agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	1,618	2,232
More than 90 days past due [Member] | PI loans [Member] | Real estate - construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	1,455	3,737
More than 90 days past due [Member] | PI loans [Member] | Real estate - mortgage, 1-4 family residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	1,127	2,209
More than 90 days past due [Member] | PI loans [Member] | Real estate - mortgage, Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	8,819	12,964
More than 90 days past due [Member] | PI loans [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	$ 6	$ 10