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Long-Term Debt Interest Rate Swaps (Details) (USD $)
Sep. 30, 2013
Dec. 31, 2012
Derivative [Line Items]    
Long-term Debt, Weighted Average Interest Rate 2.45% 2.21%
Interest Rate Derivative, April 2014, .54% [Member] | Interest Rate Swap [Member]
   
Derivative [Line Items]    
Notional Amount of Interest Rate Derivatives $ 12,000,000  
Derivative, Fixed Interest Rate on LIBOR Component 0.54%  
Derivative, Effective Aggregate Interest Rate 3.04%