Stockholders' Equity - Additional Information (Detail) (USD $)	1 Months Ended		3 Months Ended			3 Months Ended		1 Months Ended		3 Months Ended
	May 31, 2013	Apr. 30, 2013	Mar. 31, 2013	Mar. 31, 2012	Aug. 31, 2011	Mar. 31, 2013 Restricted stock	Mar. 31, 2012 Restricted stock	Feb. 28, 2013 Board of Directors	Aug. 31, 2011 Board of Directors	Mar. 31, 2013 Board of Directors	Mar. 31, 2013 Board of Directors Restricted stock	Mar. 31, 2012 Board of Directors Restricted stock
Class of Stock [Line Items]
Vested and expected to vest, outstanding					60,000
Escrow shares			0	688,367					9,000
Restricted common stock granted						0	0		60,000
Fair value of restricted stock									$ 109,722
Compensation expense related to restricted shares			42,000					50,000			8,790	8,790
Unamortized compensation cost of restricted stock grants										$ 11,720
Shares of common stock	140,000	140,000						20,000