Condensed Consolidated Balance Sheets (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 5,792	$ 6,866	[1]
Prepaids and other current assets	19	67	[1]
Total current assets	5,811	6,933	[1]
Total assets	5,811	6,933	[1]
Current liabilities:
Accounts payable	26	39	[1]
Accrued expenses	99	178	[1]
Accrued payroll and related expenses	72	85	[1]
Derivative liabilities	6,677	6,102	[1]
Total current liabilities	6,874	6,404	[1]
Series C-1 redeemable convertible preferred stock, $0.0001 par value; 11,000 shares authorized, 5,325 and 5,573 shares issued and outstanding at June 30, 2011 and December 31, 2010, respectively (redemption value and liquidation preference in the aggregate of $5,325 at June 30, 2011 and $5,652 at December 31, 2010) (see Notes 1 and 5)	5,325	47	[1]
Commitments and contingencies			[1]
Stockholders' (deficit) equity:
Common stock	3	0	[1]
Additional paid-in capital	423,485	428,563	[1]
Accumulated deficit	(429,876)	(428,081)	[1]
Total stockholders' (deficit) equity	(6,388)	482	[1]
Total liabilities, redeemable convertible preferred stock and stockholders' (deficit) equity	$ 5,811	$ 6,933	[1]

[1] The condensed consolidated balance sheet at December 31, 2010 has been derived from the audited consolidated financial statements as of that date but does not include all of the information and disclosures required by U.S. generally accepted accounting principles (see Note 1).