Subsequent Events - Additional Information (Detail) (USD $)	12 Months Ended				3 Months Ended	4 Months Ended	5 Months Ended	6 Months Ended	12 Months Ended		1 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Minimum	Dec. 31, 2013 Maximum	Mar. 31, 2012 Five Year Warrants	Dec. 31, 2013 Five Year Warrants	Dec. 31, 2012 Five Year Warrants	Jul. 31, 2013 Five Year Warrants	Dec. 31, 2013 Five Year Warrants	Dec. 31, 2012 Five Year Warrants	Feb. 28, 2014 Subsequent Event	Dec. 31, 2013 Subsequent Event Original Issue Discount Unsecured Convertible Debentures 5	Dec. 31, 2013 Subsequent Event Original Issue Discount Unsecured Convertible Debentures 5 Agent Warrants	Dec. 31, 2013 Subsequent Event Original Issue Discount Unsecured Convertible Debentures 5 Five Year Warrants
Subsequent Event [Line Items]
Debt instrument, convertible, conversion price			$ 0.045	$ 0.099								$ 0.045
Long-term Debt, Gross	$ 2,122,000	$ 3,186,000										$ 1,551,113
Proceeds From Convertible Debt	2,122,000	3,305,762										1,506,375
Debt Instrument, Interest Rate at Period End												10.00%
Debt Instrument, Convertible, Number Of Equity Instruments												33,884,379
Proceeds From Conversion Of Convertible Debt												1,426,376
Payment Of Fees And Expenses												80,000
Warrants Issued To Purchase Common Stock					20,511,000	14,620,000	5,066,000	8,010,000	22,629,000	25,577,000			555,556	16,942,189
Common Stock Exercise Price	$ 0.090
Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Exercises In Period											931,200
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price											$ 0.02
Stock Issued During Period, Value, Stock Options Exercised											$ 18,624
Shares issued for cash payment	1,111,111