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Notes Payable and Long-Term Debt (Short-Term Debt) (Details) (USD $)
9 Months Ended
Sep. 30, 2012
Dec. 31, 2011
Sep. 30, 2012
Unsecured Debt [Member]
Short-term Debt [Line Items]      
Line of credit with variable interest rate equal to the WSJ prime rate, subject to a 5.0% floor; Maturity January 2013. Interest payments due quarterly. Unsecured. $ 125,000 $ 485,000  
Interest rate at period end 5.00%   5.00%
Payment terms     Interest payments due quarterly