Income Taxes (Tables)

12 Months Ended

Dec. 31, 2017

Income Tax Disclosure [Abstract]

Components of Income (Loss) from Continuing Operations Before Income Taxes

The following table shows the components of (loss) income from continuing operations before income taxes (in thousands):

	For the year ended December 31,
	2017			2016			2015
United States	$	(11,382	)	$	(16,848	)	$	9,620
(Loss) income from continuing operations before income taxes	$	(11,382	)	$	(16,848	)	$	9,620

Schedule of Components of Benefits from Income Taxes

The following table shows the components of the provision for income taxes from continuing operations (in thousands):

	For the year ended December 31,
	2017			2016		2015
Current:
U.S. federal	$	—		$	1	$	123
State	10			26		26
Total current	$	10		$	27	$	149
Deferred:
U.S. Federal	$	(125	)	$	—	$	—
State	$	—		$	—	$	—
Total deferred	$	(125	)	$	—	$	—
Provision for income taxes	$	(115	)	$	27	$	149

Schedule of Effective Income Tax Rate Reconciliation

The principal items accounting for the difference between income taxes computed at the U.S. statutory rate and the provision for income taxes from continuing operations reflected in our Consolidated Statements of Operations are as follows:

	For the year ended December 31,
	2017		2016		2015
U.S. statutory rate	34.0	%	34.0	%	34.0	%
State taxes (net of federal tax benefit)	2.3		1.7		0.2
Valuation allowance	17.4		(27.5	)	(27.9	)
Deferred rate change due to changes in tax laws	(51.7	)	—		—
Other	(1.0	)	(8.4	)	(4.8	)
	1.0	%	(0.2	)%	1.5	%

Schedule of Deferred Tax Assets

The tax effects of temporary differences that give rise to significant portions of the deferred tax assets are as follows (in thousands):

	At December 31,
	2017			2016			2015
Allowance for doubtful accounts	$	—		$	18		$	18
Accrued expenses and other reserves	1,749			3,138			2,244
Tax credits, deferred R&D, and other	197			142			122
Net operating loss	8,610			9,239			5,384
Valuation allowance	(10,556		)	(12,537		)	(7,768		)
Net deferred tax assets	$	—		$	—		$	—