Loans - TDRs with a Payment Default During the Period (Details) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019 USD ($) loan	Jun. 30, 2018 USD ($) loan	Jun. 30, 2019 USD ($) loan	Jun. 30, 2018 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loans (in loan) \| loan		9	2	11
Principal balance \| $		$ 109	$ 29	$ 194
Commercial loan portfolio
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loans (in loan) \| loan	0	2	0	3
Principal balance \| $	$ 0	$ 67	$ 0	$ 149
Consumer loan portfolio
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loans (in loan) \| loan	2	7	2	8
Principal balance \| $	$ 29	$ 42	$ 29	$ 45

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No definition available.

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- Definition

Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953682-111524

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- Definition

Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953682-111524

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