Annual report pursuant to Section 13 and 15(d)

Debt (Details)

v2.4.0.6
Debt (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended 78 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2012
Interest expense for all debt        
Interest expense $ 609   $ 237 $ 1,641
Interest expense-related parties 55 74 76 503
Amortization of embedded conversion feature     831 831
Change in fair value of common stock warrant liability     234 234
Amortization of deferred financing costs 6   157 744
Total interest expense $ 670 $ 74 $ 1,535 $ 3,953