Loans - Risk Category, Class of Loans and Recorded Investment (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment [Line Items]
Loans	$ 2,156,330	$ 1,821,885
Construction & Land Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	108,787	87,036
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	1,009,378	837,147
Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	723,785	686,897
Commercial and Financial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	228,517	157,396
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	85,863	53,409
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	2,082,212	1,739,894
Pass [Member] | Construction & Land Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	100,186	79,397
Pass [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	973,942	797,934
Pass [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	697,907	655,518
Pass [Member] | Commercial and Financial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	226,391	155,281
Pass [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	83,786	51,764
Special mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	19,206	15,653
Special mention [Member] | Construction & Land Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	3,377	1,815
Special mention [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	12,599	11,709
Special mention [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	629	546
Special mention [Member] | Commercial and Financial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	1,209	993
Special mention [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	1,392	590
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	17,556	20,201
Substandard [Member] | Construction & Land Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	4,242	1,685
Substandard [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	9,278	15,325
Substandard [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	3,197	1,733
Substandard [Member] | Commercial and Financial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	769	1,002
Substandard [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	70	456
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Doubtful [Member] | Construction & Land Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Doubtful [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Doubtful [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Doubtful [Member] | Commercial and Financial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Doubtful [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Nonaccrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	17,386	21,140
Nonaccrual [Member] | Construction & Land Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	309	1,963
Nonaccrual [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	6,410	4,189
Nonaccrual [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	10,290	14,797
Nonaccrual [Member] | Commercial and Financial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	130	0
Nonaccrual [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	247	191
Pass-Troubled debt restructures [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	5,969	4,021
Pass-Troubled debt restructures [Member] | Construction & Land Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	58	1,672
Pass-Troubled debt restructures [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	5,893	2,332
Pass-Troubled debt restructures [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	0	17
Pass-Troubled debt restructures [Member] | Commercial and Financial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	18	0
Pass-Troubled debt restructures [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Troubled debt restructures [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	14,001	20,976
Troubled debt restructures [Member] | Construction & Land Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	615	504
Troubled debt restructures [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	1,256	5,658
Troubled debt restructures [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	11,762	14,286
Troubled debt restructures [Member] | Commercial and Financial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	0	120
Troubled debt restructures [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	$ 368	$ 408