Amount of direct write-downs of financing receivables charged against the allowance.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(3)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

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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=84173941&loc=SL6953676-111524

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The amount of the outstanding recorded investment related to 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 40
-Section 50
-Paragraph 4
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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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
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Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default.

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Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
-Paragraph 35
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Allowance for Credit Losses (Narrative) (Details) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($) loan	Sep. 30, 2017 USD ($) loan	Dec. 31, 2017 USD ($) loan
Financing Receivable, Modifications [Line Items]
Number of TDR loans \| loan			9		8
TDR recorded investment	$ 1,781		$ 1,781		$ 1,857
Partial charge-off of loan amount	38	$ 50	$ 472	$ 1,139
Number of defaulted TDRs \| loan			0		0
Loan defaults on TDRs			$ 0		$ 0
Accruing Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of TDR loans \| loan					5
TDR recorded investment					$ 1,128
Nonaccrual Impaired Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of TDR loans \| loan					3
TDR recorded investment					$ 729
Residential Mortgage [Member]
Financing Receivable, Modifications [Line Items]
Real estate loans in process of foreclosure	64		$ 64		$ 638
Number of TDR loans \| loan			2		2
TDR recorded investment	73		$ 73
Partial charge-off of loan amount			$ 151		$ 151
Consumer Installment Loan [Member]
Financing Receivable, Modifications [Line Items]
Number of TDR loans \| loan			1		1
Partial charge-off of loan amount			$ 2		$ 2
Other Real Estate Owned [Member]
Financing Receivable, Modifications [Line Items]
Real estate loans in process of foreclosure	$ 0		$ 0		$ 149
Commercial Mortgage [Member]
Financing Receivable, Modifications [Line Items]
Number of TDR loans \| loan				3	3
TDR recorded investment		$ 987		$ 987	$ 992