Derivative Liabilities - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended	3 Months Ended	6 Months Ended		12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2012	Jun. 30, 2012 10% convertible debentures	Jun. 30, 2012 10% convertible debentures	Jun. 30, 2012 Bonus Warrants	Dec. 31, 2011 Bonus Warrants	Jun. 30, 2012 Conversion Options	Dec. 31, 2011 Conversion Options	Jun. 30, 2012 Warrant	Dec. 31, 2011 Warrant	Mar. 31, 2012 Warrant
Derivative [Line Items]
Gain or loss on the embedded derivative financial instrument	$ 127,071		$ 113,271					$ (113,271)	$ (5,392)		$ 1,875,463
Derivative liability at fair value								127,071			1,900,000	0
Credited to common stock upon issuance of warrants		1,900,000				(57,034)	(234,731)			(1,875,463)
Derivative liability				797,000	797,000				113,271		1,875,463
Change in fair value of derivative				$ 2,500	$ 13,300