Options and warrants (Tables)

12 Months Ended

Dec. 31, 2012

Options and Warrants [Abstract]

Schedule of stock option and warrant activity

	Shares			Range of Exercise Prices		Weighted Average Grant Date Fair Value
Outstanding and Exercisable
Outstanding at December 31, 2010		3,215,413		$	0.10 – 2.00
Options and warrants granted		2,450,000		$	0.15 – 0.30	$	0.17
Options and warrants cancelled or expired		(260,000	)	$	2.00
Outstanding at December 31, 2011		5,405,413		$	0.10 – 2.00
Options and warrants granted		0
Options and warrants cancelled or expired		0
Outstanding at December 31, 2012		5,405,413		$	0.10 – 2.00
Exercisable at December 31, 2012		5,405,413		$	0.10 – 2.00
Exercisable at December 31, 2011		5,405,413		$	0.10 – 2.00

Schedule of options and warrants outstanding and exercisable

	Outstanding Options and Warrants					Exercisable Options and Warrants
Range of Exercise Price	Number Outstanding		Weighted Average Remaining Life	Weighted Average Price		Weighted Average Remaining Life	Number Exercisable		Weighted Average Price
$ 0.10 – $2.00		5,405,413	2.87 Years	$	0.29	2.87 Years		5,405,413	$	0.29