Significant Accounting and Reporting Policies (Computation of Basic and Diluted Net Losses Per Common Share) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		7 Months Ended	9 Months Ended		12 Months Ended	28 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Sep. 30, 2013
Basic Numerator:
Net loss attributable to shares of common stock	$ (10,560)	$ (3,124)	$ (2,754)	$ (33,464)	$ (6,836)	$ (20,841)	$ (57,059)
Basic Denominator:
Weighted average number of shares of common stock outstanding during the period	83,450,697	48,437,587		82,757,899	25,493,415		46,229,656
Weighted average number of penny stock options	88,070	353,232		124,506	117,744		109,930
Basic common stock shares outstanding	83,538,767	48,790,819		82,882,405	25,611,159		46,339,586
Basic net loss per common stock share	$ (0.13)	$ (0.06)		$ (0.40)	$ (0.27)		$ (1.23)
Diluted Numerator:
Net loss attributable to shares of common stock	(10,560)	(3,124)	(2,754)	(33,464)	(6,836)	(20,841)	(57,059)
Increase in net loss attributable to derivative warrants	(758)	(7,240)		(53)	(7,240)		(3,387)
Diluted net loss attributable to shares of common stock:	$ (11,318)	$ (10,364)		$ (33,517)	$ (14,076)		$ (60,446)
Diluted Denominator:
Basic common shares outstanding	83,538,767	48,790,819		82,882,405	25,611,159		46,339,586
Weighted average number of derivative warrants outstanding during the period	2,563,090	9,436,281		89,677	9,436,281		1,460,477
Diluted common stock shares outstanding	86,101,857	58,227,100		82,972,082	35,047,440		47,800,063
Diluted net loss per common stock share	$ (0.13)	$ (0.18)		$ (0.40)	$ (0.40)		$ (1.26)
Net loss per share data presented excludes from the calculation of diluted net loss the following potentially dilutive securities, as of June 30, as they had an anti-dilutive impact:
Total number of potentially dilutive instruments, excluded from the calculation of net loss per share	28,512,182	25,240,504		30,972,531	25,240,504		27,798,277
Vested and unvested options at $0.96-$5.50 exercise price [Member]
Net loss per share data presented excludes from the calculation of diluted net loss the following potentially dilutive securities, as of June 30, as they had an anti-dilutive impact:
Total number of potentially dilutive instruments, excluded from the calculation of net loss per share	10,225,387	9,160,429		10,225,387	9,160,429		10,225,387
Unvested penny options [Member]
Net loss per share data presented excludes from the calculation of diluted net loss the following potentially dilutive securities, as of June 30, as they had an anti-dilutive impact:
Total number of potentially dilutive instruments, excluded from the calculation of net loss per share	0	30,250		0	30,250		0
Unvested Restricted Stock Units (“RSU”) [Member]
Net loss per share data presented excludes from the calculation of diluted net loss the following potentially dilutive securities, as of June 30, as they had an anti-dilutive impact:
Total number of potentially dilutive instruments, excluded from the calculation of net loss per share	2,411,771	3,126,667		2,411,771	3,126,667		2,411,771
Common stock shares granted, but not yet vested [Member]
Net loss per share data presented excludes from the calculation of diluted net loss the following potentially dilutive securities, as of June 30, as they had an anti-dilutive impact:
Total number of potentially dilutive instruments, excluded from the calculation of net loss per share	45,762	108,625		45,762	108,625		45,762
Warrants to purchase an equal number of shares of common stock of the Company [Member]
Net loss per share data presented excludes from the calculation of diluted net loss the following potentially dilutive securities, as of June 30, as they had an anti-dilutive impact:
Total number of potentially dilutive instruments, excluded from the calculation of net loss per share	15,829,262	12,814,533		18,289,611	12,814,533		15,115,357