Loans, Loans Modified in a Troubled Debt Restructuring (Details) $ in Thousands	3 Months Ended
Mar. 31, 2016 USD ($) loan	Mar. 31, 2015 USD ($) loan
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	59	77
Recorded Investment	$ 4,498	$ 11,409
Unpaid Principal Balance	$ 4,710	$ 11,598
Commercial and Industrial Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	7	2
Recorded Investment	$ 1,483	$ 196
Unpaid Principal Balance	$ 1,522	$ 208
Commercial real estate — owner occupied
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	1	5
Recorded Investment	$ 125	$ 3,585
Unpaid Principal Balance	$ 130	$ 3,641
Commercial real estate — investor
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	0	4
Recorded Investment	$ 0	$ 3,030
Unpaid Principal Balance	$ 0	$ 3,042
Real estate construction
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	1	0
Recorded Investment	$ 10	$ 0
Unpaid Principal Balance	$ 55	$ 0
Residential Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	30	30
Recorded Investment	$ 2,062	$ 2,816
Unpaid Principal Balance	$ 2,124	$ 2,864
Home Equity Portfolio Segments [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	20	36
Recorded Investment	$ 818	$ 1,782
Unpaid Principal Balance	$ 879	$ 1,843

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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=66008989&loc=SL6953676-111524

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