Consolidated Statements of Comprehensive Loss (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Expenses:
Research and development	$ 1,353	$ 177
General and administrative	9,386	2,097
Total expenses	10,739	2,274
Loss from operations	(10,739)	(2,274)
Other income (expense):
Adjustments to fair value of derivative liabilities	2,998	(9,508)
Other income (expense), net	4	234
Net loss	(7,737)	(11,548)
Preferred stock dividends earned, net of forfeits	(780)	(119)
Comprehensive net loss attributable to common stockholders	$ (8,517)	$ (11,667)
Net loss per share basic and diluted	$ (0.84)	$ (31.59)
Shares used in computing basic and diluted net loss per share	10,196	369