Equity Transactions - Additional Information (Detail) (USD $)	1 Months Ended	3 Months Ended	5 Months Ended	12 Months Ended				1 Months Ended		3 Months Ended	5 Months Ended	12 Months Ended						1 Months Ended			1 Months Ended	12 Months Ended			1 Months Ended	12 Months Ended			1 Months Ended			12 Months Ended
	Aug. 31, 2011	Mar. 31, 2012	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2011	Nov. 30, 2012	Oct. 31, 2012	Feb. 29, 2012 Stock Option [Member]	Jul. 31, 2012 Five Year Warrants [Member]	Mar. 31, 2012 Five Year Warrants [Member]	Dec. 31, 2012 Five Year Warrants [Member]	Dec. 31, 2012 Five Year Warrants [Member]	Dec. 31, 2012 Five Year Warrants [Member] Exercise Price 0.0745 [Member]	Dec. 31, 2012 Five Year Warrants [Member] Exercise Price0.1287 [Member]	Dec. 31, 2012 Common Stock [Member]	Dec. 31, 2011 Common Stock [Member]	Feb. 28, 2011 Common Stock [Member]	Jan. 31, 2011 Series B Convertible Preferred Stock [Member]	Dec. 31, 2011 Series B Convertible Preferred Stock [Member]	Dec. 31, 2010 Series B Convertible Preferred Stock [Member]	Feb. 28, 2011 Series C Convertible Preferred Stock [Member]	Dec. 31, 2012 Series C Convertible Preferred Stock [Member]	Dec. 31, 2011 Warrant [Member]	Dec. 31, 2012 Warrant [Member]	Oct. 31, 2012 Agent [Member] Five Year Warrants [Member]	Dec. 31, 2012 Agent [Member] Five Year Warrants [Member]	Dec. 31, 2011 Former Holder [Member]	Dec. 31, 2012 Convertible Debentures Numbers	Oct. 31, 2012 Restricted Stock [Member]	Jul. 31, 2012 Restricted Stock [Member]	Oct. 31, 2012 Restricted Stock [Member] Vendor [Member]	Dec. 31, 2012 Restricted Stock [Member] Vendor [Member]	Dec. 31, 2011 Restricted Stock [Member] Director [Member]
Stockholders Equity Note [Line Items]
Common Stock granted during period																						4,746,667
Common stock granted during period exercise price				$ 0.12	$ 0.10			$ 0.09														$ 0.12
Percentage of options vest at grant																						25.00%
Vesting period																						3 years
Debt Instrument, Face Amount		$ 2,350,527	$ 1,003,158	$ 1,003,158																								$ 2,224,212
Debt Instrument, Convertible, Number of Equity Instruments																												38,817,018
Accrued interest related to debentures																												222,474
Debt Instrument Convertible Interest Expense Number Of Equity Instruments issued																												3,881,693
Common Stock issued for services (in shares)									50,000						1,475,000	42,222									25,000		1,733			50,000	25,000	1,400,000	8,000
Common Stock issued for services				81,500	86,405				8,500						14,750	422														8,500	3,000	70,000
Warrants Issued To Purchase Common Stock	1,485,838									20,511,000	5,066,000	25,577,000																	14,870
Warrants Issued As Compensation																										7,673,000
Warrants Issued													26,664,000	6,586,000
Warrants Exercise Price One										$ 0.0745		$ 0.0745
Warrants Exercise Price Two											$ 0.1287	$ 0.1287
Number Of Cashless Warrants To Purchase Common Stock																													86,340
Conversion price at maturity		$ 0.0573	$ 0.099	$ 0.099		$ 0.099	$ 0.099																	$ 0.0573
Warrants Maturity Period		five-year	five-year
Option To Purchase Common Stock								500,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights								The option vests 25% at grant and 1/36 of the remaining grant amount monthly for three years.
Stock Issued During Period, Shares, New Issues																											4,333						42,222
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized																	348,392
Accumulated and Unpaid Dividend																			106,931	106,931
Convertible Preferred Stock, shares outstanding																			2,535,000		1,000,000
Preferred Stock Conversion Price																		$ 0.2			$ 0.20
Warrants Exercise Price	$ 0.08
Noncash Operating Expenses																							$ 78,000