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Pension Plan (Plan's Funded Status And Amounts Recognized In The Balance Sheets) (Details) (USD $)
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Pension Plan [Abstract]      
Accumulated benefit obligation at end of year $ 6,830,628 $ 6,012,647  
Effect of future compensation increases 2,111,533 1,890,564  
Projected benefit obligation at end of year 8,942,161 7,903,211 7,169,552
Fair value of plan assets at end of year 7,430,467 6,261,098 5,820,238
Unfunded status at end of year $ 1,511,694 $ 1,642,113