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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2020

Income Tax Disclosure [Abstract]

Schedule of Components of Provision for Income Taxes

The following table presents components of the Company’s provision for income taxes as for the period presented (in thousands):

			December 31,
			2020						2019						2018
Current expense (benefit):
Federal			$	—					$	—					$	—
State			181						—						—
Foreign			59						68						80
Total current tax expense (benefit)			240						68						80
Deferred expense (benefit):
Federal			—						—						—
State			—						—						—
Foreign			(11)						(3)						(36)
Total deferred tax expense (benefit)			(11)						(3)						(36)
Total Tax Expense (benefit)			$	229					$	65					$	44

Schedule of Tax Expense Computed at Statutory Federal Rate and Tax Expense

The following table presents a reconciliation of the tax expense computed at the statutory federal rate and the Company’s tax expense for the period presented (in thousands):

			December 31,
			2020						2019						2018
Tax at statutory federal rate			$	(9,172)					$	(11,446)					$	(10,570)
Stock-based compensation			(20,762)						(5,560)						(8,557)
Meals and Entertainment			177						409						309
Other			805						614						148
Tax credits			(1,426)						(1,128)						(1,015)
2017 Tax Act			—						—						44
Change in valuation allowance			30,607						17,176						19,685
Provision for income taxes			$	229					$	65					$	44

Schedule of Significant Components of Deferred Tax Assets and Liabilities

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

			December 31,
			2020						2019
Deferred tax assets:
Net operating loss carryforwards			$	91,034					$	64,648
Tax credit carryforwards			7,110						5,601
Share-based compensation			8,831						5,932
Allowances and other			14,996						11,443
Lease obligation			22,624						23,869
Total deferred tax assets			144,595						111,493
Valuation allowance			(123,803)						(88,433)
Net deferred tax assets			20,792						23,060
Deferred Tax Liabilities:
Depreciation and Amortization			(108)						(850)
Right of use asset			(20,634)						(22,171)
Total deferred tax liability			(20,742)						(23,021)
Total deferred tax assets			$	50					$	39

Schedule of Valuation Allowance for Deferred Tax Assets

The valuation allowance for deferred tax assets consisted of the following activity for the years ended December 31, 2020, 2019 and 2018 (in thousands):

			Balance at beginning of year						Additions						Deductions						Balance at end of year
Year Ended December 31, 2018			$	44,321					$	22,114					$	—					$	66,435
Year Ended December 31, 2019			66,435						21,998						—						88,433
Year Ended December 31, 2020			$	88,433					$	35,370					$	—					$	123,803

Schedule of Unrecognized Tax Benefit

A reconciliation of the Company’s unrecognized tax benefit amount is as follows (in thousands):

			Year Ended December 31,
			2020						2019						2018
Balance at beginning of year			$	1,842					$	1,459					$	943
Additions for tax positions taken in current year			488						383						441
Increases in balance related to prior year tax positions			—						—						75
Decreases in balance related to prior year tax positions			(28)						—						—
Balance at end of year			$	2,302					$	1,842					$	1,459

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Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

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Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

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Tabular disclosure of the change in unrecognized tax benefits.

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Tabular disclosure of valuation allowances to reduce deferred tax assets to net realizable value, including identification of the deferred tax asset more likely than not will not be fully realized and the corresponding amount of the valuation allowance.

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