Income Taxes (Tables)

12 Months Ended

Dec. 31, 2020

Income Tax Disclosure [Abstract]

Schedule of Income Before the Provision for Income Taxes

Income before the provision for income taxes consists of the following (in thousands):

	Years Ended December 31,
	2020		2019		2018
Domestic	$	(28,029)	$	(17,142)	$	(12,527)
Foreign	(3,989)		(3,198)		(5,940)
Total loss before provision for taxes	$	(32,018)	$	(20,340)	$	(18,467)

Schedule of Components of Income Tax Expense

The components of income tax expense are as follows (in thousands):

	Years Ended December 31,
	2020		2019		2018
Current:
Federal	$	—	$	—	$	—
State	9		10		2
Foreign	185		358		207
Total current expense	194		368		209
Deferred:
Federal	6		7		(222)
State	6		27		4
Foreign	7		(39)		21
Total deferred expense	19		(5)		(197)
Total income tax expense	$	213	$	363	$	12

Schedule of Reconciliation Between Federal Statutory Rate and Effective Rate

The reconciliation between the federal statutory rate and the Company’s effective tax rate is summarized below:

	Years Ended December 31,
	2020		2019		2018
Federal statutory rate	21.0	%	21.0	%	21.0	%
State taxes, net of federal benefit	10.2	%	2.7	%	1.0	%
Foreign earnings at different rates	(3.9)	%	(4.8)	%	(8.0)	%
Tax credits	0.6	%	0.6	%	0.9	%
Permanent differences	(0.3)	%	(0.4)	%	(0.3)	%
Prior year true-up	0.3	%	0.0	%	(2.9)	%
Change in valuation allowance	(40.5)	%	(20.9)	%	10.7	%
Expiration of net operating loss carryforwards and credits	0.0	%	0.0	%	(22.5)	%
Entity restructuring	11.9	%	0.0	%	0.0	%
Effective tax rate	(0.7)	%	(1.8)	%	(0.1)	%

Schedule of Significant Components Deferred Tax Assets and Liabilities

Significant components of the Company’s deferred tax assets and liabilities for federal and state income taxes are as follows (in thousands):

	December 31,
	2020		2019		2018
Deferred tax assets:
Net operating loss carryforwards	$	30,400	$	22,500	$	19,519
Tax credit carryforwards	5,240		4,896		4,659
Other	6,675		1,926		850
Gross deferred tax assets	42,315		29,322		25,028
Less: valuation allowance	(41,922)		(28,953)		(24,736)
Deferred tax assets	393		369		292
Deferred tax liabilities:
Depreciation	(27)		(23)		(17)
Goodwill	(428)		(389)		(323)
Net deferred tax liabilities	$	(62)	$	(43)	$	(48)

Schedule of Unrecognized Tax Benefits

The following table summarizes the activity related to the Company’s gross unrecognized tax benefits (in thousands):

Balance at December 31, 2017	$	1,070
Additions for tax positions related to current year	57
Reductions for tax positions related to prior year	(185)
Balance at December 31, 2018	$	942
Additions for tax positions related to current year	47
Additions for tax positions related to prior year	—
Balance at December 31, 2019	$	989
Additions for tax positions related to current year	7,259
Additions for tax positions related to prior year	—
Balance at December 31, 2020	$	8,248