Summary of Significant Accounting Policies (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Change in Accounting Estimate [Line Items]
Derivative financial instruments - warrants	$ 40	$ 620
Derivative Financial Instruments - Series C and D PS and DP	51	296
Debentures payable - carried at fair value	34,942	38,250
Total Liabilities	37,668	42,001
Accumulated deficit	(233,321)	(236,910)
Total shareholders’ deficit	37,817	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
Restated
Change in Accounting Estimate [Line Items]
Derivative financial instruments - warrants		620
Derivative Financial Instruments - Series C and D PS and DP		296
Debentures payable - carried at fair value		38,250
Total Liabilities		42,001
Accumulated deficit		(236,910)
Total shareholders’ deficit		$ (41,860)