Loans and Allowance for Loan and Lease Losses - Summary of Information Pertaining to Impaired Loans (Details) (Loans receivable, USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Loans [Line Items]
Recorded Investment, With Valuation Allowance	$ 2,346		$ 2,346		$ 1,104
Unpaid Principal, With Valuation Allowance	2,553		2,553		1,146
Related Allowance, With Valuation Allowance	1,152		1,152		453
Recorded Investment, Without Valuation Allowance	8,744		8,744		5,496
Unpaid Principal, Without Valuation Allowance	9,329		9,329		5,751
Average Impaired Loans	9,570	7,065	10,375	7,225
Interest Recognized	39	164	415	495
Real estate, Commercial
Loans [Line Items]
Recorded Investment, Without Valuation Allowance	1,938		1,938		114
Unpaid Principal, Without Valuation Allowance	1,957		1,957		131
Average Impaired Loans	2,201	3,432	2,375	3,427
Interest Recognized	17	156	206	470
Real estate, Construction, land development, land
Loans [Line Items]
Recorded Investment, Without Valuation Allowance	12		12
Unpaid Principal, Without Valuation Allowance	24		24
Average Impaired Loans	1		2
Interest Recognized	1		1
Real estate, 1-4 family residential properties
Loans [Line Items]
Recorded Investment, With Valuation Allowance	327		327		127
Unpaid Principal, With Valuation Allowance	505		505		169
Related Allowance, With Valuation Allowance	6		6		21
Recorded Investment, Without Valuation Allowance	730		730		157
Unpaid Principal, Without Valuation Allowance	1,055		1,055		166
Average Impaired Loans	1,035	301	1,068	326
Interest Recognized	18	8	164	25
Real estate
Loans [Line Items]
Recorded Investment, With Valuation Allowance	327		327		127
Unpaid Principal, With Valuation Allowance	505		505		169
Related Allowance, With Valuation Allowance	6		6		21
Recorded Investment, Without Valuation Allowance	2,680		2,680		271
Unpaid Principal, Without Valuation Allowance	3,036		3,036		297
Average Impaired Loans	3,237	3,733	3,445	3,753
Interest Recognized	36	164	371	495
Commercial
Loans [Line Items]
Recorded Investment, With Valuation Allowance	1,029		1,029		215
Unpaid Principal, With Valuation Allowance	1,058		1,058		215
Related Allowance, With Valuation Allowance	297		297		15
Recorded Investment, Without Valuation Allowance	6,064		6,064		5,224
Unpaid Principal, Without Valuation Allowance	6,293		6,293		5,454
Average Impaired Loans	5,952	2,642	6,549	2,642
Interest Recognized	3		44
Factored receivables
Loans [Line Items]
Recorded Investment, With Valuation Allowance	990		990		762
Unpaid Principal, With Valuation Allowance	990		990		762
Related Allowance, With Valuation Allowance	849		849		417
Recorded Investment, Without Valuation Allowance					1
Average Impaired Loans	$ 381	$ 690	$ 381	$ 830

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5212-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 17

-URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5258-111524

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- Definition

Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

+ References

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- Definition

Amount of allowance for credit losses related to recorded investment.

+ References

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- Definition

Amount of investment in impaired financing receivables for which there is no related allowance for credit losses.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 14A

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953550-111524

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- Definition

Amount of unpaid principal balance of impaired financing receivables for which there is no related allowance for credit losses.

+ References

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Amount of investment in impaired financing receivables for which there is a related allowance for credit losses.

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- Definition

Unpaid principal balance of impaired financing receivables for which there is a related allowance for credit losses.

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