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Accrued Expenses (Details) (USD $)
Jun. 30, 2012
Dec. 31, 2011
Payables and Accruals [Abstract]    
Vacation $ 310,775 $ 222,706
Bonus 838,643 1,067,000
Professional fees 665,778 339,200
Loss contingency 2,422,103 2,050,000
Other 228,151 965,555
Total $ 4,465,450 $ 4,644,461