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Commitments And Contingent Liabilities (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Legal Contingencies [Abstract] |  |  |
Standby letters of credit terms, in years | 5 years |  |
Rent expense | $ 352 | $ 394 | $ 431

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- Definition Standby Letters Of Credit Term In Years + References No definition available. + Details
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- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
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