Organization and Business - Additional Information (Detail) (USD $)	12 Months Ended		63 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2010	Oct. 04, 2007	May 09, 2007
Organization and Nature of Operations [Line Items]
Percentage of Charge		50.00%
Impairment of License	$ 345,000	$ 345,000	$ 690,000
Cash	534,046	952,252	534,046	238,565	0	0
Carrying value of the siRNA license	$ 345,000
Phase I clinical trial
Organization and Nature of Operations [Line Items]
Number patients benefited from Liposomal Grb-2 treatment	3		3
Phase I clinical trial | Minimum
Organization and Nature of Operations [Line Items]
Number of evaluable patients in Phase I Clinical trial	18
Phase I clinical trial | Maximum
Organization and Nature of Operations [Line Items]
Number of evaluable patients in Phase I Clinical trial	30