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Troubled Debt Restructuring Modifications (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modification, Number of Contracts	1	1	2	2
Financing Receivable, Modification, Pre-Modification Recorded Investment	$ 710	$ 34	$ 1,447	$ 1,309
Financing Receivable, Modifications, Post-Modifications Recorded Investment	$ 710	$ 34	$ 1,447	$ 1,300
Commercial and Industrial Loans [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modification, Number of Contracts		1		1
Financing Receivable, Modification, Pre-Modification Recorded Investment		$ 34		$ 34
Financing Receivable, Modifications, Post-Modifications Recorded Investment		$ 34		$ 34
Commercial Real Estate Other Loans [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modification, Number of Contracts	1		2	1
Financing Receivable, Modification, Pre-Modification Recorded Investment	$ 710		$ 1,447	$ 1,275
Financing Receivable, Modifications, Post-Modifications Recorded Investment	$ 710		$ 1,447	$ 1,266
Commercial Real Estate Loans, Total [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modification, Number of Contracts	1		2	1
Financing Receivable, Modification, Pre-Modification Recorded Investment	$ 710		$ 1,447	$ 1,275
Financing Receivable, Modifications, Post-Modifications Recorded Investment	$ 710		$ 1,447	$ 1,266

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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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Post-modification amount of investment in financing receivables 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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Pre-modification amount of investment in financing receivables 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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