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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

Summary of Loss Before Income Taxes

Loss before income taxes are as follows (in thousands):

		Year Ended December 31,
		2019				2018
Losses before income taxes:
U.S.		$	(16,174	)		$	(14,177	)
Non-U.S.			163				112
Total		$	(16,011	)		$	(14,065	)

Summary of Provision (Benefit) for Income Taxes

The provision (benefit) for income taxes are as follows (in thousands):

		Year Ended December 31,
		2019				2018
Current:		$	—			$	—
Federal			—				—
State			—				—
Foreign			—				—
			—				—
Deferred
Federal			—				—
State			—				—
Foreign			—				—
			—				—
Provision (benefit) for income taxes		$	—			$	—

Reconciliation of U.S. Federal Statutory Income Tax Rate

A reconciliation of the U.S. federal statutory income tax rate to the Company’s effective income tax rate is as follows:

		Year Ended December 31,
		2019				2018
Statutory Federal income tax rate		$	(3,362	)		$	(2,953	)
State income taxes, net of Federal tax benefits			—				—
Foreign losses			—				—
Tax credits			(207	)			(204	)
Change in statutory rates			—				—
Stock-based compensation			141				72
Goodwill impairment			392
Permanent items			4				3
Other			38				90
Change in valuation allowance			2,994				2,992
Total provision for income taxes		$	—			$	—

Schedule of Significant Components Deferred Tax Assets and Liabilities

Significant components of the Company’s deferred tax assets and liabilities as of December 31, 2019 and 2018 consisted of the following (in thousands):

		Year Ended December 31,
		2019				2018
Net operating loss carryforwards		$	9,947			$	7,126
Research and development tax credits			506				299
Accruals and reserves			43				159
Stock compensation			391				301
Depreciation and amortization			116				126
Lease liability			68				—
Total deferred tax assets			11,071				8,011
Right-of-use asset			(66	)			—
Total deferred tax liabilities			(66	)			—
Less: valuation allowance			(11,005	)			(8,011	)
Net deferred tax assets		$	—			$	—

Reconciliation of Beginning and Ending Amounts of Unrecognized Tax Benefits

The following table reconciles the beginning and ending amounts of unrecognized tax benefits for the years presented (in thousands):

		Year Ended December 31,
		2019				2018
Gross unrecognized tax benefits at the beginning of the year		$	328			$	181
Additions from tax positions taken in the current year			214				158
Additions from tax positions taken in prior years			6				—
Reductions from tax positions taken in prior years			—				(11	)
Tax settlements			—				—
Gross unrecognized tax benefits at the end of the year		$	548			$	328

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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 income before income tax between domestic and foreign jurisdictions.

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Tabular disclosure of the change in unrecognized tax benefits.

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