Quarterly report pursuant to Section 13 or 15(d)

Accounts Payable And Accrued Expenses (Details)

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Accounts Payable And Accrued Expenses (Details) - USD ($)
Jun. 30, 2016
Dec. 31, 2015
Accounts Payable And Accrued Expenses [Abstract]    
Trade payables $ 598,843 $ 774,543
Accrued expenses 64,139 92,752
Accrued research and development contract costs 967,930 1,515,151
Payroll liabilities 163,735 278,852
Total accounts payable and accrued expenses $ 1,794,647 $ 2,661,298