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Fair Value of Financial Instruments
9 Months Ended
Sep. 30, 2011
Fair Value Disclosures [Abstract] 
Fair Value of Financial Instruments
Note 4.   Fair Value of Financial Instruments

The fair value of our long-term obligations, after deducting current maturities, is estimated to be $124,261,000 at September 30, 2011 and $116,483,000 at December 31, 2010, compared to carrying values of $119,169,000 and $114,067,000, respectively. The fair value estimates are based on the overall weighted average interest rates and maturity compared to rates and terms currently available in the long-term financing markets. Our financial instruments also include cash equivalents, trade accounts receivable and accounts payable for which current carrying amounts approximate fair market value.