Summary of Significant Accounting Policies (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Change in Accounting Estimate [Line Items]
Derivative Financial Instruments - warrants	$ 247	$ 620
Derivative Financial Instruments - Series C and D PS and DP	159	296
Debentures payable - carried at fair value		38,250
Total Liabilities	42,007	42,001
Accumulated deficit	(236,895)	(236,910)
Total shareholders’ deficit	(41,845)	(41,860)
Scenario, Previously Reported [Member]
Change in Accounting Estimate [Line Items]
Derivative Financial Instruments - warrants		684
Derivative Financial Instruments - Series C and D PS and DP		23,606
Debentures payable - carried at fair value		257,451
Total Liabilities		284,576
Accumulated deficit		(479,485)
Total shareholders’ deficit		(284,435)
Scenario, Adjustment [Member]
Change in Accounting Estimate [Line Items]
Derivative Financial Instruments - warrants		(64)
Derivative Financial Instruments - Series C and D PS and DP		(23,310)
Debentures payable - carried at fair value		(219,201)
Total Liabilities		(242,575)
Accumulated deficit		242,575
Total shareholders’ deficit		$ 242,575