Liquidity and Capital Resources (Details) - USD ($)	9 Months Ended
	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Estimated Projected Expenditure [Line Items]
Cash and cash equivalents	$ 58,875,925	$ 22,261,372	$ 55,779,620	$ 32,218,905
Currently projected expenditures for clinical programs	37,400,000
Aldoxorubicin [Member]
Estimated Projected Expenditure [Line Items]
Currently projected expenditures for clinical programs	15,600,000
Other Programs [Member]
Estimated Projected Expenditure [Line Items]
Currently projected expenditures for clinical programs	2,700,000
General Operation [Member]
Estimated Projected Expenditure [Line Items]
Currently projected expenditures for clinical programs	3,400,000
Other General and Administrative Expenses [Member]
Estimated Projected Expenditure [Line Items]
Currently projected expenditures for clinical programs	8,300,000
Interest and Term Loan Payment [Member]
Estimated Projected Expenditure [Line Items]
Currently projected expenditures for clinical programs	$ 7,400,000