Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

Income Taxes [Abstract]

Components of the income tax expense/(benefit) related to continuing operations

	Year ended December 31, 2012			Year ended December 31, 2011
U.S. Federal:
Current	$	—		$	—
Deferred		(2,068	)		—
U.S. State:
Current		—			—
Deferred		(432	)		—
	$	(2,500	)	$	—

Reconciliation between income taxes/(benefit) at the U.S. federal statutory rate

	Year ended December 31, 2012			Year ended December 31, 2011
Tax benefit at U.S. federal statutory rate	$	(9,144	)	$	(10,939	)
Increase in domestic valuation allowance		11,127			8,767
State income taxes/(benefit) before valuation allowance, net of federal benefit		(1,971	)		(1,367	)
Capital loss limitation		(817	)		—
Loss on extinguishment of debt		1,547			—
Derivative revaluation expense		8			1,908
Warrant revaluation (gain)/expense		(3,054	)		1,667
Other		(196	)		(36	)
	$	(2,500	)	$	—

Components of the Company's net deferred tax liabilities

	December 31, 2012			December 31, 2011
Deferred tax liabilities:
Intangible assets	$	2,282		$	2,500
Total deferred tax liabilities	$	2,282		$	2,500
Deferred tax assets:
Loss carryforwards	$	49,598		$	37,397
Capital loss carryforward		817			—
Property and equipment		1,327			1,390
Accrued expenses and other		360			294
Stock compensation		2,492			2,104
Total deferred tax assets		54,594			41,185
Less: valuation allowance		(52,312	)		(41,185	)
Total deferred tax assets	$	2,282		$	—
Net deferred tax liabilities	$	—		$	2,500