Equity (Schedule of Outstanding Warrants) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Jul. 31, 2010
Class of Warrant or Right [Line Items]
Exercise Price	$ 0.68
Number of Warrants	11,530,877
Series X Warrants [Member]
Class of Warrant or Right [Line Items]
Exercise Price	$ 0.46
Number of Warrants	8,333,333
Expiration Date	Dec. 31, 2013
Series AA Warrants [Member]
Class of Warrant or Right [Line Items]
Exercise Price	$ 0.97
Number of Warrants	2,400,000
Expiration Date	Jul. 23, 2014
Series BB Warrants [Member]
Class of Warrant or Right [Line Items]
Exercise Price	$ 2.0	$ 2.0
Number of Warrants	300,000
Expiration Date	Jul. 07, 2015
Series EE Warrants [Member]
Class of Warrant or Right [Line Items]
Exercise Price	$ 2.375
Number of Warrants	134,211
Expiration Date	Aug. 09, 2015
Series FF Warrants [Member]
Class of Warrant or Right [Line Items]
Exercise Price	$ 1.97
Number of Warrants	30,000
Expiration Date	Dec. 01, 2015
Series GG Warrants [Member]
Class of Warrant or Right [Line Items]
Exercise Price	$ 2.1
Number of Warrants	333,333
Expiration Date	Dec. 29, 2016