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Long-Term Debt (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Components of long-term debt    
Less current portion $ (3,000) $ (3,000)
Noncurrent portion 4,500 6,000
Sun Trust Term Loan [Member]
   
Components of long-term debt    
SunTrust term loan due quarterly through January 2014 7,500 9,000
Less current portion 3,000 3,000
Noncurrent portion $ 4,500 $ 6,000