Share-based Compensation - Additional Information (Detail) (USD $)	3 Months Ended		3 Months Ended	6 Months Ended	3 Months Ended
	Mar. 31, 2013	Jun. 30, 2013	Jun. 30, 2013 Warrant	Jun. 30, 2013 Warrant	Mar. 31, 2013 Convertible Promissory Notes Warrants
Share-Based Compensation [Line Items]
Shares available for grant		2,300,000
Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants in period, weighted average grant date fair value					$ 0.60
Fair value of warrants for 8% convertible promissory notes					$ 249,151
Change in fair value of derivative			16,655	2,990
Sharebased compensation arrangement by share based payment award options amortized expenses remaining amount	$ 4,733
Share based compensation arrangement by share-based payment award, options, grants in period, gross					4,375,004