Equity Instruments (Tables)

12 Months Ended

Dec. 31, 2012

Equity Instruments [Abstract]

Schedule of warrant activity

A summary of warrant activity for 2012 and 2011 follows:

Warrants	Shares			Weighted- Average Exercise Price		Weighted-Average Remaining Contractual Term	Aggregate Intrinsic Value
Outstanding at January 1, 2011		27,209,750		$	0.37	4.25 years
Granted		14,997,833		$	0.35
Reclassified		500,000		$	0.55
Forfeited, expired or cancelled		(1,650,000	)	$	0.81
Outstanding at December 31, 2011		41,057,583		$	0.35	4.86 years
Granted		125,000		$	0.25
Forfeited, expired or cancelled		(5,225,000	)	$	0.49
Outstanding at December 31, 2012		35,957,583		$	0.33	4.26 years	$	—
Exercisable at December 31, 2012		35,890,583		$	0.33	4.27 years	$	—

Summary of warrants granted, reclassified and vested

The following table summarizes information about warrants granted, reclassified and vested during 2012 and 2011:

	2012		2011
Warrants granted		125,000		14,997,833
Weighted-average grant-date fair value ($)		0.10		0.17
Warrants reclassified		—		500,000
Weighted-average fair value ($)		n/a		0.13
Fair value of vested warrants ($)		15,318		2,387,736

Summary of warrants outstanding and exercisable

A summary of warrants outstanding and exercisable as of December 31, 2012 follows:

Warrants Outstanding	Exercise Price Range	Weighted- Average Exercise Price	Weighted- Average Remaining Contractual Life	Warrants Exercisable	Weighted- Average Exercise Price of Exercisable Warrants
23,809,250	$0.25	$0.25	5.12	23,809,250	$0.25
3,773,333	$0.44	$0.44	2.88	3,773,333	$0.44
8,375,000	$0.50 - $ 1.00	$0.51	2.46	8,308,000	$0.50
35,957,583	$0.25 - $ 1.00	$0.33	4.26	35,890,583	$0.33

Schedule of option activity

A summary of activity for 2012 and 2011 follows:

Options	Shares			Weighted- Average Exercise Price		Weighted-Average Remaining Contractual Term	Aggregate Intrinsic Value
Outstanding at January 1, 2011		2,611,100		$	0.50	8.09 years
Granted		6,925,000			0.27
Forfeited, expired or cancelled		(740,700	)		0.36
Outstanding at December 31, 2011		8,795,400		$	0.33	7.74 years
Granted		300,000			0.25
Forfeited, expired or cancelled		(2,477,400	)		0.34
Outstanding at December 31, 2012		6,618,000		$	0.32	8.29 years	$	—
Exercisable at December 31, 2012		6,261,334		$	0.33	8.25 years	$	—

Summary of options granted and vested

The following table summarizes information about options granted and vested during the years ended December 31.

	2012		2011
Options granted		300,000		6,925,000
Weighted-average grant-date fair value ($)		0.08		0.18
Fair value of vested options ($)		143,252		1,304,754

Summary of common stock option activity and related information

A summary of our common stock option activity and related information for 2012 and 2011 follows:

	Shares			Weighted Average Exercise Price
Outstanding as of January 1, 2011		2,611,100		$	0.50
Granted		6,925,000			0.27
Exercised		—			—
Forfeited, expired or cancelled		(740,700	)		0.36
Outstanding as of December 31, 2011		8,795,400		$	0.33
Granted		300,000			0.25
Exercised		—			—
Forfeited, expired or cancelled		(2,477,400	)		0.34
Outstanding as of December 31, 2012		6,618,000		$	0.32

Summary of common stock options outstanding and exercisable

A summary of common stock options outstanding and exercisable as of December 31, 2012 follows:

Options Outstanding	Exercise Price Range	Weighted- Average Exercise Price	Weighted- Average Remaining Contractual Life	Options Exercisable	Weighted- Average Exercise Price of Exercisable Options
5,200,000	$0.25	$0.25	8.95	4,883,334	$0.25
1,418,000	$0.28 - $ 2.16	$0.60	5.88	1,378,000	$0.60
6,618,000	$0.25 - $ 2.16	$0.32	8.29	6,261,334	$0.33