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Fair Value of Financial Instruments
6 Months Ended
Jun. 30, 2011
Fair Value of Financial Instruments [Abstract]  
Fair Value of Financial Instruments
(4) Fair Value of Financial Instruments
The carrying amounts of financial instruments including cash and cash equivalents, accounts receivable, accounts payable and short-term debt approximated fair value as of June 30, 2011 and December 31, 2010 because of the relatively short maturity of these instruments. Based on the borrowing rates currently available to the Company for debt with similar items and remaining maturities, the estimated fair value of total debt at June 30, 2011 and December 31, 2010 was $85.1 million and $97.7 million, respectively, based upon level two in the fair value hierarchy. The carrying value of the debt was $81.4 million at June 30, 2011 and was $90.0 million at December 31, 2010.