Loans and Allowance for Loan and Lease Losses - Summary of Individual and Collective Allowance for Loan Losses and Loan Balances by Class (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Loans [Line Items]
Loan Evaluation, Individually	$ 11,020	$ 11,589
Loan Evaluation, Collectively	978,358	844,319
Loan Evaluation, PCI	16,500	25,191
Loan, Total	1,005,878	881,099	211,249
ALLL Allocations, Individually	1,749	446
ALLL Allocations, Collectively	7,094	3,192
ALLL Allocations, PCI		7
ALLL Allocations, Total ALLL	8,843	3,645	1,926	423
Loans receivable
Loans [Line Items]
Loan, Total	1,005,878	881,099
Loans receivable \| Commercial real estate
Loans [Line Items]
Loan Evaluation, Individually	1,934	4,489
Loan Evaluation, Collectively	238,640	308,326
Loan Evaluation, PCI	8,590	18,647
Loan, Total	249,164	331,462
ALLL Allocations, Collectively	533	348
ALLL Allocations, Total ALLL	533	348	261	34
Loans receivable \| Construction, land development, land
Loans [Line Items]
Loan Evaluation, Collectively	41,431	35,585
Loan Evaluation, PCI	1,483	2,041
Loan, Total	42,914	37,626
ALLL Allocations, Collectively	333	110
ALLL Allocations, Total ALLL	333	110	40
Loans receivable \| 1-4 family residential properties
Loans [Line Items]
Loan Evaluation, Individually	627	842
Loan Evaluation, Collectively	76,041	87,987
Loan Evaluation, PCI	2,070	2,472
Loan, Total	78,738	91,301
ALLL Allocations, Individually		14
ALLL Allocations, Collectively	215	79
ALLL Allocations, PCI		7
ALLL Allocations, Total ALLL	215	100	227	132
Loans receivable \| Farmland
Loans [Line Items]
Loan Evaluation, Collectively	22,496	20,294
Loan, Total	22,496	20,294
ALLL Allocations, Collectively	19	7
ALLL Allocations, Total ALLL	19	7	5
Loans receivable \| Commercial Loans
Loans [Line Items]
Loan Evaluation, Individually	7,188	5,495
Loan Evaluation, Collectively	353,022	248,129
Loan Evaluation, PCI	4,357	2,031
Loan, Total	364,567	255,655
ALLL Allocations, Individually	716	15
ALLL Allocations, Collectively	3,287	1,130
ALLL Allocations, Total ALLL	4,003	1,145	172
Loans receivable \| Factored receivables
Loans [Line Items]
Loan Evaluation, Individually	1,271	763
Loan Evaluation, Collectively	179,639	116,607
Loan, Total	180,910	117,370
ALLL Allocations, Individually	1,033	417
ALLL Allocations, Collectively	2,429	1,425
ALLL Allocations, Total ALLL	3,462	1,842	1,221
Loans receivable \| Consumer
Loans [Line Items]
Loan Evaluation, Collectively	11,941	13,878
Loan, Total	11,941	13,878
ALLL Allocations, Collectively	140	49
ALLL Allocations, Total ALLL	140	49
Loans receivable \| Mortgage warehouse
Loans [Line Items]
Loan Evaluation, Collectively	55,148	13,513
Loan, Total	55,148	13,513
ALLL Allocations, Collectively	138	44
ALLL Allocations, Total ALLL	$ 138	$ 44

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

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The valuation allowance for financing receivables acquired with deteriorated credit quality.

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

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

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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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.

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