Related Party Transactions - Additional Information (Detail) (USD $)	1 Months Ended		12 Months Ended
	Aug. 15, 2012	Jul. 25, 2012	Dec. 31, 2012
Related Party Transaction [Line Items]
Convertible secured promissory notes, principal amount		$ 4,085,000
Number of common stock to be issued upon exercise of warrant		1,436,121
Fair value of warrants liability		356,969
Debt instrument, beneficial conversion feature		1,497,634
Convertible debt, unamortized discount			3,708,237
Annual compensation to Acting Chief Financial Officer	100,000		37,500
Accounts payable-related parties			8,333
Warrant Liability
Related Party Transaction [Line Items]
Amortized debt discount			104,032
Related Party Transactions
Related Party Transaction [Line Items]
Convertible secured promissory notes, principal amount		630,000
Number of common stock to be issued upon exercise of warrant		221,483
Debt instrument, beneficial conversion feature		230,969
Convertible debt, unamortized discount		587,939
Related Party Transactions | Warrant Liability
Related Party Transaction [Line Items]
Amortized debt discount			$ 16,044