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Loans, Allowance for Loan Losses and Credit Quality (Textual) (Details) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $ 0 | $ 205,000 | $ 0 | $ 205,000 |
Unamortized Loan Commitment and Origination fees | 6,700,000 |  | 6,700,000 |  | $ 6,100,000
Significant Advanced Considered For Risk Rating Change |  |  | $ 50,000 |  |
Days to be termed as non accrual loans |  |  | 90 days |  |
Tdrs Recorded Investment On Nonaccrual Status | 4,095,000 |  | $ 4,095,000 |  | 6,067,000
Unamortized Discounts or Premiums | $ 8,800,000 |  | $ 8,800,000 |  | $ 9,400,000

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- Definition Days to be termed as non accrual loans. + References No definition available. + Details
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- Definition Significant Advanced Considered For Risk Rating Change + References No definition available. + Details
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- Definition Troubled Debt Restructurings recorded investment that are on nonaccrual status as of the balance sheet date. + References No definition available. + Details
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- Definition Premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield. + References No definition available. + Details
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- Definition Amount of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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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=84173941&loc=SL6953682-111524 + Details
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