Loans - Schedule of Troubled Debt Restructurings (Details) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2017 USD ($) contract	Sep. 30, 2016 USD ($) contract	Sep. 30, 2017 USD ($) contract	Sep. 30, 2016 USD ($) contract
Troubled debt restructurings
Number of contracts \| contract	9	6	20	14
Pre-modification outstanding recorded investment	$ 5,983	$ 4,622	$ 17,162	$ 8,692
Post-modification outstanding recorded investment	5,129	4,201	15,751	7,691
Charge-offs	$ 0	$ 0	$ 0	$ 0
Commercial
Troubled debt restructurings
Number of contracts \| contract			19	13
Pre-modification outstanding recorded investment			$ 17,079	$ 8,615
Post-modification outstanding recorded investment			$ 15,676	$ 7,618
Consumer
Troubled debt restructurings
Number of contracts \| contract			1	1
Pre-modification outstanding recorded investment			$ 83	$ 77
Post-modification outstanding recorded investment			$ 75	$ 73
Manufacturing \| Commercial
Troubled debt restructurings
Number of contracts \| contract	1		1	1
Pre-modification outstanding recorded investment	$ 1,366		$ 1,366	$ 50
Post-modification outstanding recorded investment	$ 1,366		$ 1,366	$ 23
Finance and insurance \| Commercial
Troubled debt restructurings
Number of contracts \| contract			1
Pre-modification outstanding recorded investment			$ 456
Post-modification outstanding recorded investment			$ 456
Health care \| Commercial
Troubled debt restructurings
Number of contracts \| contract			3	1
Pre-modification outstanding recorded investment			$ 465	$ 100
Post-modification outstanding recorded investment			$ 304	$ 100
Construction \| Commercial
Troubled debt restructurings
Number of contracts \| contract		2		3
Pre-modification outstanding recorded investment		$ 1,500		$ 1,825
Post-modification outstanding recorded investment		$ 1,444		$ 1,769
Public administration \| Commercial
Troubled debt restructurings
Number of contracts \| contract			1
Pre-modification outstanding recorded investment			$ 320
Post-modification outstanding recorded investment			$ 320
Commercial - Other \| Commercial
Troubled debt restructurings
Number of contracts \| contract	8	4	13	8
Pre-modification outstanding recorded investment	$ 4,617	$ 3,122	$ 14,472	$ 6,640
Post-modification outstanding recorded investment	$ 3,763	$ 2,757	$ 13,230	$ 5,726

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+ References

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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 33
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953676-111524

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