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Troubled Debt Restructing Modifications (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($)
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modification, Number of Contracts | 2 | 3
Financing Receivable, Modification, Pre-Modification Recorded Investment | $ 1,309 | $ 3,147
Financing Receivable, Modifications, Post-Modifications Recorded Investment | $ 1,300 | $ 3,137
Commercial and Industrial Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modification, Number of Contracts |  | 1
Financing Receivable, Modification, Pre-Modification Recorded Investment |  | $ 34
Financing Receivable, Modifications, Post-Modifications Recorded Investment |  | $ 34
Commercial Real Estate Other Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modification, Number of Contracts | 1 | 3
Financing Receivable, Modification, Pre-Modification Recorded Investment | $ 1,275 | $ 3,147
Financing Receivable, Modifications, Post-Modifications Recorded Investment | $ 1,266 | $ 3,137
Commercial Real Estate Loans, Total [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modification, Number of Contracts | 1 | 3
Financing Receivable, Modification, Pre-Modification Recorded Investment | $ 1,275 | $ 3,147
Financing Receivable, Modifications, Post-Modifications Recorded Investment | $ 1,266 | $ 3,137

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- Definition 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=66008989&loc=SL6953676-111524 + Details
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- Definition 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=66008989&loc=SL6953676-111524 + Details
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- Definition 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=66008989&loc=SL6953676-111524 + Details
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