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Loans and Allowance for Loan Losses - Troubled Debt Restructuring (Details) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016 USD ($) contract	Dec. 31, 2015 contract
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract		0
Construction and Land Development [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	1
Pre-Modification Outstanding Recorded Investment	$ 483
Post-Modification Outstanding Recorded Investment	$ 483
Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	1
Pre-Modification Outstanding Recorded Investment	$ 385
Post-Modification Outstanding Recorded Investment	$ 385

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+ References

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Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953676-111524

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Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953676-111524

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- Definition

Pre-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953676-111524

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