Stockholders' Equity (Outstanding Warrants To Purchase Shares Of Common Stock) (Detail) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012
Total Warrant Shares Outstanding	922,667
Warrant Shares Exercisable	922,667
Warrant One [Member]
Total Warrant Shares Outstanding	24,000
Warrant Shares Exercisable	24,000
Exercise Price (not weighted)	0.01
Weighted Average Years until Expiration	1 year 11 months 1 day
Warrant Two [Member]
Total Warrant Shares Outstanding	2,000
Warrant Shares Exercisable	2,000
Exercise Price (not weighted)	0.02
Weighted Average Years until Expiration	2 years 11 months 12 days
Warrant Three [Member]
Total Warrant Shares Outstanding	4,000
Warrant Shares Exercisable	4,000
Exercise Price (not weighted)	0.03
Weighted Average Years until Expiration	9 months 11 days
Warrant Four [Member]
Total Warrant Shares Outstanding	416,667
Warrant Shares Exercisable	416,667
Exercise Price (not weighted)	0.06
Weighted Average Years until Expiration	9 months
Warrant Five [Member]
Total Warrant Shares Outstanding	259,000
Warrant Shares Exercisable	259,000
Exercise Price (not weighted)	0.10
Weighted Average Years until Expiration	10 months 21 days
Warrant Six [Member]
Total Warrant Shares Outstanding	217,000
Warrant Shares Exercisable	217,000
Exercise Price (not weighted)	0.50
Weighted Average Years until Expiration	1 month 17 days