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Loans and Allowance for Credit Losses (Troubled Debt Restructurings With Subsequent Default) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017 USD ($) contract	Mar. 31, 2016 USD ($) contract
Financing Receivable, Allowance for Credit Losses [Line Items]
Number of contracts | contract	1	2
Recorded investment	$ 89	$ 358
Related allowance
Residential Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Number of contracts | contract	1
Recorded investment	$ 89
Related allowance
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Number of contracts | contract		1
Recorded investment		$ 117
Related allowance
Commercial Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Related allowance
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Related allowance
Construction Loans [Member] | Commercial and Residential Real Estate Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Number of contracts | contract		1
Recorded investment		$ 241
Related allowance

X

- Definition

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

+ References

No definition available.

+ Details

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- Definition

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+ References

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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

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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