Loans - TDRs with a Payment Default During the Period (Details) $ in Thousands	3 Months Ended
Mar. 31, 2018 USD ($) loan	Mar. 31, 2017 USD ($) loan
Financing Receivable, Modifications [Line Items]
Number of loans (in loan) \| loan	2	5
Principal balance \| $	$ 85	$ 725
Commercial loan portfolio
Financing Receivable, Modifications [Line Items]
Number of loans (in loan) \| loan	1	3
Principal balance \| $	$ 82	$ 620
Consumer loan portfolio
Financing Receivable, Modifications [Line Items]
Number of loans (in loan) \| loan	1	2
Principal balance \| $	$ 3	$ 105

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953682-111524

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- Definition

Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default.

+ References

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