Related Party - Additional Information (Detail) (USD $)	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013		Dec. 31, 2013
Related Party Transaction [Line Items]
Accrued expense - related party	$ 67,050				$ 67,050				$ 52,050
Accrued license payments - related party	50,000				50,000				100,000
Research and Development	424,521	[1]	568,576	[1]	1,048,716	[1]	1,125,711	[1]
Md Anderson Cancer Center [Member]
Related Party Transaction [Line Items]
Accrued expense - related party	67,050				67,050
Md Anderson Cancer Center [Member] | Clinical Trials [Member]
Related Party Transaction [Line Items]
Accrued expense - related party	67,050				67,050				52,050
Accrued license payments - related party									100,000
Research and Development			15,000
Current Patent Maintenance Fees					15,000
Md Anderson Cancer Center [Member] | Research and Development Expense [Member]
Related Party Transaction [Line Items]
Cash paid to MD Anderson Cancer Center for expenses	16,235		15,000
Research and Development	$ 1,235

[1] Research and development expense includes stock option expenses of $29,235 and $6,623 for the quarters ending 9/30/2014 and 9/30/2013, respectively; and $56,267 and $26,256 for the nine month periods ending 9/30/2014 and 9/30/2013, respectively. Research and development expense also includes amortization expenses of $40,156 for the quarters ending 9/30/2014 and 9/30/2013; and $120,469 for the nine month periods ending 9/30/2014 and 9/30/2013.