Warrrnts Granted (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
10% Convertible debenture - bonus warrants
Share-Based Compensation [Line Items]
Number of Shares Issuable	166,675	316,682
Weighted - Average Exercise Price	$ 0.60
10% Convertible preferred stock - warrants
Share-Based Compensation [Line Items]
Number of Shares Issuable	3,761,365
Weighted - Average Exercise Price	$ 1.00
8% Convertible promissory notes - warrants
Share-Based Compensation [Line Items]
Number of Shares Issuable	17,820,470
Weighted - Average Exercise Price	$ 0.60
Consultants
Share-Based Compensation [Line Items]
Number of Shares Issuable	300,000	265,676
Weighted - Average Exercise Price	$ 0.82
Warrant
Share-Based Compensation [Line Items]
Number of Shares Issuable	22,048,510
Weighted - Average Exercise Price	$ 0.76