Subsequent Events - Additional Information (Detail) (USD $)	6 Months Ended		62 Months Ended				1 Months Ended			1 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Dec. 31, 2011	Dec. 31, 2010	Jun. 30, 2012 Common Stock	Jun. 30, 2012 Private Placement memorandum	Jun. 30, 2012 Private Placement memorandum Common Stock Minimum	Jun. 30, 2012 Private Placement memorandum Common Stock Maximum	Jul. 31, 2012 Subsequent Event Private Placement memorandum
Subsequent Event [Line Items]
Proceeds from Common Stock issued	$ 264,709	$ 1,396,288	$ 6,703,894				$ 135,000			$ 155,000
Cash	162,440	1,221,659	162,440	952,252	238,565	235,000		1,000,000	2,000,000
Commissions from selling common stock through private placement							$ 320,000