Loans and Allowance for Loan Losses (Evaluation for Impairment) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Allowance for Credit Losses [Line Items]
ALL, individually evaluated for impairment	$ 418	$ 927
ALL, collectively evaluated for impairment	16,690	20,298
ALL, PI loans evluated for credit impairment	3,237	5,560
ALL, PI loans with no credit deterioration	0	0
Total ALL evaluated for impairment	20,345	26,785	29,314	39,360
Loans held for investment, individually evaluated for impairment	34,482	42,830
Loans held for investment, collectively evaluated for impairment	1,200,464	1,007,767
Loans held for investment, PI loans with subsequent credit deterioration	118,701	161,307
Loans held for investment, PI loans with no credit deterioration	4,141	344
Loans held for investment	1,357,788	1,212,248
Commercial and agricultural [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
ALL, individually evaluated for impairment	58	0
ALL, collectively evaluated for impairment	3,600	2,549
ALL, PI loans evluated for credit impairment	257	382
ALL, PI loans with no credit deterioration	0	0
Total ALL evaluated for impairment	3,915	2,931	3,238	5,776
Loans held for investment, individually evaluated for impairment	498	398
Loans held for investment, collectively evaluated for impairment	105,380	61,125
Loans held for investment, PI loans with subsequent credit deterioration	7,535	10,729
Loans held for investment, PI loans with no credit deterioration	0	0
Loans held for investment	113,413	72,252
Real estate - construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
ALL, individually evaluated for impairment	0	0
ALL, collectively evaluated for impairment	2,656	4,218
ALL, PI loans evluated for credit impairment	507	1,015
ALL, PI loans with no credit deterioration	0	0
Total ALL evaluated for impairment	3,163	5,233	4,987	11,995
Loans held for investment, individually evaluated for impairment	2,344	4,734
Loans held for investment, collectively evaluated for impairment	66,786	49,457
Loans held for investment, PI loans with subsequent credit deterioration	8,619	9,792
Loans held for investment, PI loans with no credit deterioration	578	100
Loans held for investment	78,327	64,083
Real estate - mortgage, 1-4 family residential [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
ALL, individually evaluated for impairment	331	927
ALL, collectively evaluated for impairment	5,317	7,218
ALL, PI loans evluated for credit impairment	199	724
ALL, PI loans with no credit deterioration	0	0
Total ALL evaluated for impairment	5,847	8,869	8,701	8,885
Loans held for investment, individually evaluated for impairment	11,409	14,119
Loans held for investment, collectively evaluated for impairment	638,456	595,135
Loans held for investment, PI loans with subsequent credit deterioration	14,174	26,628
Loans held for investment, PI loans with no credit deterioration	3,563	225
Loans held for investment	667,602	636,107
Real estate - mortgage, commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
ALL, individually evaluated for impairment	29	0
ALL, collectively evaluated for impairment	2,065	3,944
ALL, PI loans evluated for credit impairment	2,085	3,251
ALL, PI loans with no credit deterioration	0	0
Total ALL evaluated for impairment	4,179	7,195	9,627	11,063
Loans held for investment, individually evaluated for impairment	20,231	23,579
Loans held for investment, collectively evaluated for impairment	318,752	258,167
Loans held for investment, PI loans with subsequent credit deterioration	87,345	113,178
Loans held for investment, PI loans with no credit deterioration	0	0
Loans held for investment	426,328	394,924
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
ALL, individually evaluated for impairment	0	0
ALL, collectively evaluated for impairment	3,052	2,369
ALL, PI loans evluated for credit impairment	189	188
ALL, PI loans with no credit deterioration	0	0
Total ALL evaluated for impairment	3,241	2,557	2,761	1,641
Loans held for investment, individually evaluated for impairment	0	0
Loans held for investment, collectively evaluated for impairment	71,090	43,883
Loans held for investment, PI loans with subsequent credit deterioration	1,028	980
Loans held for investment, PI loans with no credit deterioration	0	19
Loans held for investment	$ 72,118	$ 44,882

The balance of financing receivables that were acquired with no credit deterioration.

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The valuation allowance for financing recievable acquired with no credit deterioration.

+ References

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The balance of financing receivables that were acquired with deteriorated credit quality.

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-Publisher FASB

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A valuation allowance for financing receivables that are expected to be uncollectible.

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-Publisher FASB

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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-Publisher FASB

-Name Accounting Standards Codification

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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-Publisher FASB

-Name Accounting Standards Codification

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The balance of financing receivables that were collectively evaluated for impairment.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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