XML 75 R80.htm IDEA: XBRL DOCUMENT

Warrant Liability (Details 4) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Summary of outstanding warrants and fair value of warrant liability
Number Outstanding	9,935,912
Fair value	$ 9,265,365
Series A Warrants [Member]
Summary of outstanding warrants and fair value of warrant liability
Number Outstanding	8,501,429	8,000,000
Exercise Price per share	$ 1.40
Fair value	9,157,397
Warrants issued in 2008 [Member]
Summary of outstanding warrants and fair value of warrant liability
Number Outstanding	1,034,483
Exercise Price per share	$ 23.00
Fair value	44,628
Warrants issued in 2009 [Member]
Summary of outstanding warrants and fair value of warrant liability
Number Outstanding	400,000
Exercise Price per share	$ 15.00
Fair value	$ 63,340