Notes Payable (Details Textual) (USD $)	9 Months Ended					9 Months Ended									9 Months Ended
	Sep. 30, 2012	Sep. 27, 2012	Dec. 31, 2011	May 16, 2006	Sep. 26, 2005	Sep. 30, 2012 Legal and other transaction costs [Member]	Sep. 30, 2012 Reimbursement of MHR's legal fees [Member]	Sep. 30, 2012 Issuance Costs, MHR Convertible Notes [Member]	Sep. 30, 2012 Issuance costs, related derivative instruments allotment [Member]	Sep. 30, 2012 Legal expenses incurred by MHR in connection with the Future Transaction Agreement [Member]	Sep. 30, 2012 MHR Convertible Notes [Member]	Sep. 26, 2012 MHR Convertible Notes [Member]	Jun. 04, 2010 MHR Convertible Notes [Member]	Jun. 04, 2010 June 2010 MHR Warrants [Member]	Sep. 30, 2012 2012 Bridge Loan [Member]	Oct. 17, 2012 2012 Bridge Loan [Member]
Class of Warrant or Right [Line Items]
Common stock														865,000
Common stock, shares issued											8,087,809
Total issuance costs associated with the Loan Agreement	$ 2,100,000					$ 500,000	$ 1,400,000	$ 1,900,000	$ 200,000
Fair value of the June 2010 MHR Warrants by using Black-Scholes models														1,900,000
The fair value of the MHR Convertible Notes as of June 4, 2010	30,572,000		28,153,000										17,200,000
Legal fees										100,000
Non-interest promissory notes	500,000
Incremental borrowing rate	10.00%
Due date or expiry date	Jun. 08, 2012
Default amount of principal and interest due and payable MHR Convertible Notes		600,000										30,500,000
Default interest rate with respect to MHR Convertible Notes											13.00%
MHR convertible notes default description											As of September 27, 2012, the Company was in default under the terms of the MHR Convertible Notes. The default is the result of the Company’s failure to pay MHR approximately $30.5 million in principal and interest due and payable on September 26, 2012 under the terms of the MHR Convertible Notes. The MHR Convertible Notes are secured by a first priority lien in favor of MHR on substantially all of our assets. As a result of the Company’s failure to pay all amounts due and payable under the MHR Convertible Notes as of September 26, 2012, MHR has the ability under the terms of the Security Agreement to foreclose on substantially all of the Company’s assets. On October 4, 2012, the Company received notice from MHR that, pursuant to the terms of the MHR Convertible Notes, the default interest rate of 13% per annum will apply with apply with respect to the MHR Convertible Notes, effective as of September 27, 2012. MHR has not demanded payment under the MHR Convertible Notes or exercised its other rights under the Loan Agreement as a result of the default, and has indicated to the Company that it is prepared to continue discussions with the Company regarding proposals relating to the MHR Convertible Notes and the Company’s default thereunder while reserving all of its rights under the Loan Agreement.
Maturity date of Notes	Sep. 26, 2012														Feb. 17, 2013
Secured loan agreement, amount					15,000,000											1,400,000
Senior Secured Convertible Notes interest rate																13.00%
Notes Payable (Textual) [Abstract]
Net proceeds of secured loan agreement					12,900,000
Senior secured convertible notes loan agreement, execution date	May 16, 2006
Conversion price per share				$ 3.78
Minimum percentage of common stock outstanding to provide continuity to Mutual Nominee on Board	2.00%
Default of the aggregate Reimbursement Notes		600,000										30,500,000
Loss on extinguishment of debt	$ 17,000,000