Related Party - Additional Information (Detail) (USD $)	6 Months Ended		12 Months Ended	74 Months Ended		6 Months Ended			3 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2013 MD Anderson Cancer Center	Jun. 30, 2012 MD Anderson Cancer Center	Jun. 30, 2013 MD Anderson Cancer Center Clinical Trials [Member]	Jun. 30, 2013 MD Anderson Cancer Center Research and Development Expense	Jun. 30, 2012 MD Anderson Cancer Center Research and Development Expense	Jun. 30, 2013 MD Anderson Cancer Center Technology Licenses
Related Party Transaction [Line Items]
Accrued expense - related party	$ 37,050			$ 37,050	$ 26,000	$ 37,050		$ 22,050
Accrued license payments - related party	50,000			50,000	100,000
Cash paid to MD Anderson Cancer Center for expenses									32,067	367,588
Accounts payable - related party	10,017			10,017	8,582						10,017
Research and Development Expense							367,588
Technology impairment	0	345,000	345,000	690,000		345,000
Patent Expense							$ 22,588