Loans and Allowance for Loan and Lease Losses - Summary of Information Concerning Loan Portfolio (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Accounts Notes And Loans Receivable [Line Items]
Loans	$ 1,245,840	$ 1,291,885
Allowance for loan and lease losses	(12,093)	(12,567)	$ (9,286)	$ (8,843)
Loans, net	1,233,747	1,279,318
Commercial real estate
Accounts Notes And Loans Receivable [Line Items]
Loans	293,485	291,819
Allowance for loan and lease losses	(1,619)	(1,489)	(1,075)	(533)
Construction, land development, land
Accounts Notes And Loans Receivable [Line Items]
Loans	41,622	43,876
Allowance for loan and lease losses	(198)	(367)	(344)	(333)
1-4 family residential properties
Accounts Notes And Loans Receivable [Line Items]
Loans	76,973	78,244
Allowance for loan and lease losses	(285)	(274)	(223)	(215)
Farmland
Accounts Notes And Loans Receivable [Line Items]
Loans	33,250	33,573
Allowance for loan and lease losses	(133)	(134)	(26)	(19)
Commercial Loans
Accounts Notes And Loans Receivable [Line Items]
Loans	509,433	495,356
Allowance for loan and lease losses	(5,331)	(5,276)	(3,996)	(4,003)
Factored receivables
Accounts Notes And Loans Receivable [Line Items]
Loans	199,532	215,088
Allowance for loan and lease losses	(4,110)	(4,509)	(3,380)	(3,462)
Consumer
Accounts Notes And Loans Receivable [Line Items]
Loans	13,530	13,050
Allowance for loan and lease losses	(222)	(216)	(84)	(140)
Mortgage warehouse
Accounts Notes And Loans Receivable [Line Items]
Loans	78,015	120,879
Allowance for loan and lease losses	$ (195)	$ (302)	$ (158)	$ (138)

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.7(d))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 6
-Section L
-Subsection 1

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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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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

+ References

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