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Commitments and Contingent Liabilities (Details) - Commitments and Unused Lines of Credit - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
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Fixed Rate |  |
The contractual amounts of financial instruments with off-balance-sheet risk at year end |  |
Total contractual amounts of financial instruments with off-balance-sheet risk | $ 74,119 | $ 74,798
Variable Rate |  |
The contractual amounts of financial instruments with off-balance-sheet risk at year end |  |
Total contractual amounts of financial instruments with off-balance-sheet risk | $ 265,260 | $ 247,080

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- Definition The fair value of financial liabilities, which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611 + Details
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