Annual report pursuant to Section 13 and 15(d)

Accounts Payable And Accrued Expenses (Details)

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Accounts Payable And Accrued Expenses (Details) (USD $)
Dec. 31, 2012
Dec. 31, 2011
Accounts Payable And Accrued Expenses [Abstract]    
Trade payables $ 250,682 $ 555,613
Accrued expenses 76,289 50,401
Accrued research and development contract costs 452,577 449,775
Payroll liabilities 72,289 129,616
Total accounts payable and accrued expenses $ 851,837 $ 1,185,405