Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Schedule of Income before Income Tax, Domestic and Foreign

(Loss) income from continuing operations before income taxes consists of the following components (in thousands):

	Year Ended December 31,
	2014			2013			2012
United States	$	(8,260	)	$	(167	)	$	1,811

Schedule of Total Tax Expense By Classification

The components of the income tax provision from continuing operations, by classification, included in the accompanying Consolidated Statements of Operations is as follows (in thousands):

	Year Ended December 31,
	2014		2013		2012
Current:
Federal	$	—	$	—	$	6
State	2		—		—
	$	2	$	—	$	6

	Year Ended December 31,
	2014		2013		2012
Deferred:
Federal	$	9	$	—	$	—
State	1		—		—
	$	10	$	—	$	—

Schedule of Deferred Tax Assets and Liabilities

Deferred tax assets and liabilities consist of the following (in thousands):

	Year Ended December 31,
	2014			2013
Deferred tax assets:
Net operating loss carryforwards	$	10,333		$	7,067
Accruals and reserves	1,755			1,632
Research and development credit carryforward	1,756			1,260
Other	73			73
Gross deferred tax assets	$	13,917		$	10,032
Deferred tax liabilities:
Goodwill	$	(10	)	$	—
Gross deferred tax liabilities	$	(10	)	$	—
Deferred tax assets	$	13,907		$	10,032
Valuation allowance	(13,917		)	(10,032		)
Net deferred tax liability	$	(10	)	$	—

Schedule of Effective Income Tax Rate Reconciliation

Reconciliation of the federal statutory income tax rate to the Company’s effective income tax rate on (loss) income from continuing operations is as follows:

	Year Ended December 31,
	2014		2013		2012
Federal statutory income tax rate	34.0	%	34.0	%	34.0	%
State, net of federal benefit	3.3	%	(61.8	)%	0.9	%
Stock compensation	—	%	1.7	%	—	%
Research and development credit	6.0	%	287.8	%	—	%
Return to provision and true-ups	0.5	%	(3.9	)%	—	%
Change in valuation allowance	(43.8	)%	(249.3	)%	(35.9	)%
Other	(0.1	)%	(8.5	)%	1.3	%
Effective income tax rate	(0.1	)%	—	%	0.3	%

Schedule of Unrecognized Tax Benefits Roll Forward

A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in thousands):

	Year Ended December 31,
	2014		2013			2012
Unrecognized tax benefits at beginning of period	$	415	$	344		$	1,192
Gross increases to current period tax positions	128		161			—
Gross increases (decreases) to prior period tax positions	37		(90		)	(848		)
Unrecognized tax benefits at end of period	$	580	$	415		$	344