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Borrowed Funds (Summary of Long Term Borrowings) (Details) - USD ($) $ in Thousands | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Debt Instrument [Line Items] |  |
FHLB advances | $ 85,000 | $ 90,000
Junior subordinated debt, bearing variable interest rates | 30,929 | 30,929
Total long-term debt | $ 115,929 | $ 120,929
Junior Subordinated Debt [Member] | Variable Interest Rate [Member] |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate, effective percentage | 4.93% |
Federal Home Loan Bank Advances [Member] | Minimum [Member] |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate, effective percentage | 1.54% |
Federal Home Loan Bank Advances [Member] | Maximum [Member] |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate, effective percentage | 3.02% |

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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
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