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

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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