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           Employee Benefit Plans (Summary Of Estimated Future Pension Benefit Payments) (Details) (USD $) 
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           Dec. 31, 2012 
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| Employee Benefit Plans [Abstract] | |
| 2013 | $ 462,000 | 
| 2014 | 494,000 | 
| 2015 | 262,000 | 
| 2016 | 234,000 | 
| 2017 | 489,000 | 
| 2018 thru 2022 | $ 1,998,000 | 
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- Details 
          
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- Definition 
          Amount of benefits expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount of benefits expected to be paid in the next fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount of benefits expected to be paid in the fifth fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount of benefits expected to be paid in the fourth fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount of benefits expected to be paid in the third fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount of benefits expected to be paid in the second fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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