Loans (Troubled debt restructuring with payment defaults) (Details) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2016 USD ($) loan	Sep. 30, 2015 USD ($) loan	Sep. 30, 2016 USD ($) loan	Sep. 30, 2015 USD ($) loan
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	0	1,000	1	1,000
Recorded Investment \| $	$ 0	$ 814	$ 95	$ 814
Commercial
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	0	1,000	1	1,000
Recorded Investment \| $	$ 0	$ 814	$ 95	$ 814
Commercial \| Commercial
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	0	0	1	0
Recorded Investment \| $	$ 0	$ 0	$ 95	$ 0
Commercial \| Commercial real estate
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	0	1,000	0	1,000
Recorded Investment \| $	$ 0	$ 814	$ 0	$ 814
Agricultural and agricultural real estate
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	0	0	0	0
Recorded Investment \| $	$ 0	$ 0	$ 0	$ 0
Residential real estate
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	0	0	0	0
Recorded Investment \| $	$ 0	$ 0	$ 0	$ 0
Consumer
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	0	0	0	0
Recorded Investment \| $	$ 0	$ 0	$ 0	$ 0

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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=66008989&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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