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Loans - Summary of Portfolio Loans Individually Evaluated for Impairment by Category (Details) - Portfolio loans, net - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	$ 13,848	$ 15,057
Recorded Investment With No Allowance	2,042	3,241
Recorded Investment With Allowance	12,304	12,150
Total Recorded Investment	14,346	15,391
Related Allowance	5,187	3,064
Average Recorded Investment	14,164	7,366
Commercial and industrial
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	11,930	12,341
Recorded Investment With No Allowance	40	566
Recorded Investment With Allowance	11,963	11,791
Total Recorded Investment	12,003	12,357
Related Allowance	5,047	2,909
Average Recorded Investment	12,017	4,489
Commercial - owner occupied
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	0	225
Recorded Investment With No Allowance	0	231
Recorded Investment With Allowance	0	0
Total Recorded Investment	0	231
Related Allowance	0	0
Average Recorded Investment	0	227
Commercial - investor owned
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	281	525
Recorded Investment With No Allowance	282	435
Recorded Investment With Allowance	0	0
Total Recorded Investment	282	435
Related Allowance	0	0
Average Recorded Investment	272	668
Construction and land development
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	1,575	1,904
Recorded Investment With No Allowance	1,658	1,947
Recorded Investment With Allowance	341	359
Total Recorded Investment	1,999	2,306
Related Allowance	140	155
Average Recorded Investment	1,813	1,918
Residential real estate
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	62	62
Recorded Investment With No Allowance	62	62
Recorded Investment With Allowance	0	0
Total Recorded Investment	62	62
Related Allowance	0	0
Average Recorded Investment	62	64
Consumer and other
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	0	0
Recorded Investment With No Allowance	0	0
Recorded Investment With Allowance	0	0
Total Recorded Investment	0	0
Related Allowance	0	0
Average Recorded Investment	$ 0	$ 0

X

- Definition

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

+ 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

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+ 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=49124121&loc=d3e5212-111524

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
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-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5258-111524

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+ 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)
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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 310
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-Section 50
-Paragraph 15
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+ References

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+ References

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