Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Operating activities
Net loss	$ (7,737)	$ (11,548)
Adjustments to reconcile net (loss) to net cash used for operating activities:
Share-based compensation expense	8,604	254
(Gain)/loss on adjustment to fair value of derivative liabilities	(2,998)	9,508
Changes in operating assets and liabilities:
Prepaids and other current assets	35	7
Accounts payable and accrued expenses	(49)	31
Accrued payroll and related expenses	10	(78)
Net cash used for operating activities	(2,135)	(1,826)
Financing Activities
Exercise of Series C-2 Warrants for Preferred Shares	500
Net cash provided by financing activities	500
Net decrease in cash and cash equivalents	(1,635)	(1,826)
Cash and cash equivalents at beginning of period	5,040	6,866
Cash and cash equivalents at end of period	3,405	5,040
Supplemental disclosure of cash flow information:
Issuance of Series D-12 Preferred Stock	4,631
Conversion of Series C-12 and D-12 Preferred Stock into common stock	47	904
Reclassification of preferred stock no longer redeemable	5,792
Reclassification of preferred stock currently redeemable		5,531
Reclassification of Derivative Liabilities value due to removal of redemption and certain conversion features	12,418
Dividends paid in Series C-12 Preferred Stock	780	58
Series C-12 Preferred Stock dividends forfeited		$ 17