Loans - Schedule of Troubled Debt Restructurings (Details) $ in Thousands	12 Months Ended
Dec. 31, 2016 USD ($) contract	Dec. 31, 2015 USD ($) contract	Dec. 31, 2014 USD ($) contract
Troubled debt restructurings
Number of contracts \| contract	16	23	24
Pre-modification outstanding recorded investment	$ 9,610	$ 23,386	$ 7,992
Post-modification outstanding recorded investment	7,313	18,696	5,570
Charge-offs	$ 1,100	$ 0	$ 400
Commercial
Troubled debt restructurings
Number of contracts \| contract	15	21	20
Pre-modification outstanding recorded investment	$ 9,533	$ 22,238	$ 7,658
Post-modification outstanding recorded investment	$ 7,241	$ 17,566	$ 5,274
Construction and land
Troubled debt restructurings
Number of contracts \| contract			1
Pre-modification outstanding recorded investment			$ 121
Post-modification outstanding recorded investment			$ 95
Consumer
Troubled debt restructurings
Number of contracts \| contract	1	1	1
Pre-modification outstanding recorded investment	$ 77	$ 148	$ 93
Post-modification outstanding recorded investment	$ 72	$ 130	$ 89
Other
Troubled debt restructurings
Number of contracts \| contract			1
Pre-modification outstanding recorded investment			$ 91
Post-modification outstanding recorded investment			$ 84
Manufacturing \| Commercial
Troubled debt restructurings
Number of contracts \| contract	1	2	3
Pre-modification outstanding recorded investment	$ 50	$ 491	$ 1,611
Post-modification outstanding recorded investment	$ 22	$ 437	$ 1,318
Health care \| Commercial
Troubled debt restructurings
Number of contracts \| contract	1	1
Pre-modification outstanding recorded investment	$ 100	$ 200
Post-modification outstanding recorded investment	$ 100	$ 125
Real estate services \| Commercial
Troubled debt restructurings
Number of contracts \| contract			4
Pre-modification outstanding recorded investment			$ 1,171
Post-modification outstanding recorded investment			$ 1,024
Construction \| Commercial
Troubled debt restructurings
Number of contracts \| contract	4	3	5
Pre-modification outstanding recorded investment	$ 1,995	$ 1,738	$ 2,784
Post-modification outstanding recorded investment	$ 1,844	$ 1,029	$ 1,478
Commercial - Other \| Commercial
Troubled debt restructurings
Number of contracts \| contract	9	15	8
Pre-modification outstanding recorded investment	$ 7,388	$ 19,809	$ 2,092
Post-modification outstanding recorded investment	$ 5,275	$ 15,975	$ 1,454
Residential and commercial owner-occupied \| Real estate - mortgage
Troubled debt restructurings
Number of contracts \| contract		1	1
Pre-modification outstanding recorded investment		$ 1,000	$ 29
Post-modification outstanding recorded investment		$ 1,000	$ 28

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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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=49124121&loc=SL6953676-111524

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