Income Taxes (Tables)

12 Months Ended

Dec. 31, 2018

Schedule of Income before Income Tax, Domestic and Foreign

The Company's income (loss) before provision (benefit) for income taxes for the years ended December 31, 2018, 2017, and 2016, respectively, was generated in the following jurisdictions (in thousands):



	Years Ended December 31,
	2018			2017			2016
Domestic	$	(50,938	)	$	(62,495	)	$	(50,651	)
Foreign	577			746			150
Total loss before income taxes	$	(50,361	)	$	(61,749	)	$	(50,501	)

Components of income tax expense (benefit) for continuing operations

The components of income tax expense (benefit) were as follows for the years ended December 31, 2018, 2017, and 2016, respectively (in thousands):



	Years Ended December 31,
	2018			2017			2016
Current expense (benefit):
U.S. Federal	$	4		$	(1	)	$	11
State	43			22			35
Foreign	99			80			51
Total current expense	146			101			97
Deferred expense (benefit):
U.S. Federal	(5		)	—			2
State	(2		)	—			1
Total deferred expense	(7		)	—			3
Provision for income taxes	$	139		$	101		$	100

Net deferred income taxes

The components of net deferred income taxes consisted of the following at December 31, 2018 and 2017, respectively (in thousands):



	As of December 31,
	2018			2017
Deferred income tax assets:
NOL and credit carryforwards	$	75,063		$	64,486
Compensation accruals	4,542			4,143
Accruals and reserves	1,401			2,207
State tax provision	7			5
Inventory adjustments	1,193			1,329
Intangible assets	498			455
Other	620			65
Gross deferred tax assets	83,324			72,690
Less: valuation allowance	(81,964		)	(71,464		)
Total deferred tax assets	1,360			1,226
Deferred income tax liabilities:
Depreciation	1,102			1,226
Contract acquisition costs	258			—
Total deferred tax liabilities	1,360			1,226
Net deferred tax assets (liabilities)	$	—		$	—

Reconciliation of income tax (expense)

A reconciliation of income tax expense to the amount computed by applying the statutory federal income tax rate to the loss from operations is summarized for the years ended December 31, 2018, 2017, and 2016, respectively, as follows:



	Years Ended December 31,
	2018		2017		2016
U.S. Federal statutory income tax rate	21.0	%	34.0	%	34.0	%
Permanent differences	(0.2	)%	(0.2	)%	(0.3	)%
State taxes	3.0	%	2.8	%	2.3	%
Executive compensation limitation	(0.5	)%	(0.5	)%	(0.1	)%
Tax reform	0.1	%	(59.0	)%	—	%
Stock-based compensation	(2.6	)%	1.4	%	(3.5	)%
Other	0.1	%	0.2	%	(0.4	)%
Valuation allowance	(21.2	)%	21.1	%	(32.2	)%
Total tax provision	(0.3	)%	(0.2	)%	(0.2	)%