Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 5,040	$ 6,866
Prepaids and other current assets	60	67
Total current assets	5,100	6,933
Total Assets	5,100	6,933
Current liabilities:
Accounts payable	8	39
Accrued expenses	240	178
Accrued payroll and related expenses	7	85
Derivative liabilities	15,270	6,102
Total current liabilities	15,525	6,404
Series C-1 redeemable convertible preferred stock, $0.0001 par value; 11,000 shares authorized, 5,043 and 5,573 shares issued and outstanding at December 31, 2011 and 2010, respectively (redemption value and liquidation preference in the aggregate of $5,116 and $5,652 at December 31, 2011 and 2010, respectively)	5,133	47
Commitments
Stockholders' equity (deficit):
Common stock, $0.0001 par value; 6,000,000,000 shares authorized, 874,746 and 947,101 shares issued and outstanding at December 31, 2011 and 2010, respectively	0	0
Additional paid-in capital	424,071	428,563
Accumulated deficit	(439,629)	(428,081)
Total stockholders' equity (deficit)	(15,558)	482
Total liabilities, redeemable convertible preferred stock and stockholders' equity (deficit)	$ 5,100	$ 6,933