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Accrued Liabilities (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Accruals for disputed services $ 2,318 $ 2,318
Accrued operating expenses 1,940 2,010
Accrued payroll related expenses 4 130
Accrued interest 74 7,677
Total $ 4,336 $ 12,135