Loans - Credit Quality (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	$ 1,426,603	$ 1,351,917
Purchased Credit Impaired	7,099	7,498
Total loans held for investment	1,433,702	1,359,415	1,261,015
Grade 1 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	4,620	3,497
Grade 2 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	11,832	7,800
Grade 3 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	284,470	312,986
Grade 4 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	1,025,626	966,207
Grade 5 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	72,545	33,073
Grade 6 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	13,877	12,466
Grade 7 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	4,510	4,528
Grade 8 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	8,581	8,843
Grade 9 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	542	2,517
Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	1,323,972	1,245,329
Commercial & Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	710,135	680,395
Purchased Credit Impaired	780	895
Total loans held for investment	710,915	681,290	659,757
Commercial & Industrial [Member] | Grade 1 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	3,759	2,657
Commercial & Industrial [Member] | Grade 2 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	11,832	7,750
Commercial & Industrial [Member] | Grade 3 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	155,279	161,581
Commercial & Industrial [Member] | Grade 4 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	466,695	474,831
Commercial & Industrial [Member] | Grade 5 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	53,646	10,970
Commercial & Industrial [Member] | Grade 6 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	11,009	11,790
Commercial & Industrial [Member] | Grade 7 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	1,546	3,471
Commercial & Industrial [Member] | Grade 8 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	5,827	6,106
Commercial & Industrial [Member] | Grade 9 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	542	1,239
Owner occupied commercial real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	140,902	155,306
Purchased Credit Impaired	1,582	1,655
Total loans held for investment	142,484	156,961	137,767
Owner occupied commercial real estate [Member] | Grade 3 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	24,602	26,548
Owner occupied commercial real estate [Member] | Grade 4 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	105,465	118,070
Owner occupied commercial real estate [Member] | Grade 5 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	9,250	10,631
Owner occupied commercial real estate [Member] | Grade 6 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	145
Owner occupied commercial real estate [Member] | Grade 7 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	1,270	57
Owner occupied commercial real estate [Member] | Grade 8 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	170
Commerical real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	277,395	262,335
Purchased Credit Impaired	4,487	4,676
Total loans held for investment	281,882	267,011	218,637
Commerical real estate [Member] | Grade 3 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	22,411	37,750
Commerical real estate [Member] | Grade 4 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	244,038	213,946
Commerical real estate [Member] | Grade 5 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	6,529	8,752
Commerical real estate [Member] | Grade 6 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	2,599	569
Commerical real estate [Member] | Grade 7 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	1,210	502
Commerical real estate [Member] | Grade 8 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	608	816
Construction, land & land development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	188,609	139,971
Purchased Credit Impaired	82	96
Total loans held for investment	188,691	140,067	132,875
Construction, land & land development [Member] | Grade 3 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	12,383	12,058
Construction, land & land development [Member] | Grade 4 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	172,794	124,972
Construction, land & land development [Member] | Grade 5 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	2,842	2,323
Construction, land & land development [Member] | Grade 7 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	30	31
Construction, land & land development [Member] | Grade 8 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	560	587
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	109,730	114,086
Residential mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	104,745	106,186
Purchased Credit Impaired	168	176
Total loans held for investment	104,913	106,362	104,327
Residential mortgage [Member] | Grade 1 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	289	292
Residential mortgage [Member] | Grade 3 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	67,734	71,264
Residential mortgage [Member] | Grade 4 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	34,774	32,735
Residential mortgage [Member] | Grade 5 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	224	149
Residential mortgage [Member] | Grade 7 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	412	418
Residential mortgage [Member] | Grade 8 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	1,312	1,328
Other consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	4,817	7,724
Total loans held for investment	4,817	7,724	7,652
Other consumer [Member] | Grade 1 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	572	548
Other consumer [Member] | Grade 2 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile		50
Other consumer [Member] | Grade 3 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	2,061	3,785
Other consumer [Member] | Grade 4 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	1,860	1,653
Other consumer [Member] | Grade 5 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	54	248
Other consumer [Member] | Grade 6 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	124	107
Other consumer [Member] | Grade 7 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	42	49
Other consumer [Member] | Grade 8 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile	104	6
Other consumer [Member] | Grade 9 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, credit risk profile		1,278
Originated [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	1,416,524	1,336,017
Originated [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	1,307,513	1,222,833
Originated [Member] | Commercial & Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	708,773	674,621
Originated [Member] | Owner occupied commercial real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	139,970	153,507
Originated [Member] | Commerical real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	270,250	254,838
Originated [Member] | Construction, land & land development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	188,520	139,867
Originated [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	109,011	113,184
Originated [Member] | Residential mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	104,529	105,888
Originated [Member] | Other consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	4,482	7,296
Acquired [Member]
Financing Receivable, Recorded Investment [Line Items]
Purchased Credit Impaired	7,099	7,498
Total loans held for investment	17,178	23,398
Acquired [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Purchased Credit Impaired	6,931	7,322
Total loans held for investment	16,459	22,496
Acquired [Member] | Commercial & Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Purchased Credit Impaired	780	895
Total loans held for investment	2,142	6,669
Acquired [Member] | Owner occupied commercial real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Purchased Credit Impaired	1,582	1,655
Total loans held for investment	2,514	3,454
Acquired [Member] | Commerical real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Purchased Credit Impaired	4,487	4,676
Total loans held for investment	11,632	12,173
Acquired [Member] | Construction, land & land development [Member]
Financing Receivable, Recorded Investment [Line Items]
Purchased Credit Impaired	82	96
Total loans held for investment	171	200
Acquired [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Purchased Credit Impaired	168	176
Total loans held for investment	719	902
Acquired [Member] | Residential mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Purchased Credit Impaired	168	176
Total loans held for investment	384	474
Acquired [Member] | Other consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	$ 335	$ 428