Loans - Impaired Loans Individually Evaluated (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014
With an allowance recorded
Related allowance	$ 14,840	$ 468
Recorded investment	44,993	7,101
Unpaid principal balance	45,051	7,106
Average Recorded Investment	16,700	11,700
Commercial & Industrial [Member]
With no related allowance recorded
Recorded investment	2,612	1,424
Unpaid principal balance	2,613	1,424
With an allowance recorded
Recorded investment	32,471	502
Unpaid principal balance	32,510	502
Related allowance	14,733	373
Recorded investment	35,083	1,926
Unpaid principal balance	35,123	1,926
Real Estate Portfolio Segment [Member]
With an allowance recorded
Related allowance	107
Recorded investment	9,736	4,925
Unpaid principal balance	9,754	4,929
Owner occupied commercial real estate [Member]
With no related allowance recorded
Recorded investment	829	173
Unpaid principal balance	834	173
Commerical real estate [Member]
With no related allowance recorded
Recorded investment	6,946	2,506
Unpaid principal balance	6,963	2,510
Construction, land & land development [Member]
With no related allowance recorded
Recorded investment	268	969
Unpaid principal balance	268	969
With an allowance recorded
Recorded investment	204
Unpaid principal balance	204
Related allowance	92
Residential mortgage [Member]
With no related allowance recorded
Recorded investment	1,423	1,277
Unpaid principal balance	1,418	1,277
With an allowance recorded
Recorded investment	66
Unpaid principal balance	67
Related allowance	15
Consumer and other [Member]
With no related allowance recorded
Recorded investment	174	155
Unpaid principal balance	174	156
With an allowance recorded
Recorded investment		95
Unpaid principal balance		95
Related allowance		95
Recorded investment	174	250
Unpaid principal balance	$ 174	$ 251

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

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

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=49124121&loc=d3e5258-111524

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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=49124121&loc=SL6953550-111524

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