CONSOLIDATED STATEMENT OF CHANGES IN REDEEMABLE CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' DEFICIT (Parenthetical) (USD $) In Thousands, unless otherwise specified	138 Months Ended	12 Months Ended		138 Months Ended
	Dec. 31, 2011	Dec. 31, 2010 Series B-2 12% redeemable convertible preferred stock	Dec. 31, 2010 Series C super dividend convertible preferred stock	Dec. 31, 2011 Issuance During Period 1st Series A 12% Convertible Preferred Stock Private Placement	Dec. 31, 2011 Issuance During Period 2nd Cash	Dec. 31, 2011 Issuance During Period 2nd Series B-1 12% Redeemable Convertible Preferred Stock	Dec. 31, 2011 Issuance During Period 3rd Private Placement	Dec. 31, 2011 Issuance During Period 3rd Series B-2 12% redeemable convertible preferred stock	Dec. 31, 2011 Issuance During Period 4th Series C super dividend convertible preferred stock	Dec. 31, 2011 Issuance During Period 5th Private Placement	Dec. 31, 2011 Issuance During Period 8th Private Placement	Dec. 31, 2011 Issuance During Period 9th Private Placement	Dec. 31, 2011 Issuance During Period 10th Private Placement	Dec. 31, 2011 Issuance During Period 11th Private Placement	Dec. 31, 2011 Issuance During Period 12th Cash
Issuance of stock, Date				Feb. 04, 2008											Feb. 25, 2008
Issuance of stock, issuance costs	$ 17	$ 77	$ 47	$ 52	$ 49	$ 300	$ 212	$ 188	$ 47	$ 18	$ 128	$ 559	$ 466	$ 485	$ 369