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Notes Payable (Schedule Of Notes Payable) (Details) (USD $)
 6 Months Ended
Jun. 30, 2013
Dec. 31, 2012
Jun. 30, 2012
Debt Instrument [Line Items]      
Total notes payable $ 5,271,966 $ 5,498,926 $ 5,768,873
Less current maturities 545,494 542,981 540,478
Total long-term portion 4,726,472 4,955,945 5,228,395
Note Payable to Private Bank [Member]
      
Debt Instrument [Line Items]      
Total notes payable 5,154,445 5,365,556 5,618,889
Debt instrument, monthly installments 42,222    
Variable interest rate 2.709%    
Maturity date May 31, 2018    
Line Of Credit With Private Bank [Member]
      
Debt Instrument [Line Items]      
Total notes payable 0 0 0
Variable interest rate 3.25%    
Maturity date May 31, 2014    
Line of credit, maximum borrowing capacity 5,000,000 2,000,000  
Notes Payable To Ford Credit Corp. [Member]
      
Debt Instrument [Line Items]      
Total notes payable 41,641 50,871 59,825
Debt instrument, monthly installments 1,778.23    
Variable interest rate 5.99%    
Note Payable To Fletcher Jones Of Chicago, Ltd LLC [Member]
      
Debt Instrument [Line Items]      
Total notes payable 75,880 82,499 90,159
Debt instrument, monthly installments $ 1,768.57    
Variable interest rate 6.653%    
Maturity date May 24, 2017