Income Taxes (Tables)

12 Months Ended

Dec. 31, 2020

Income Tax Disclosure [Abstract]

Schedule of Income Tax Provision (Benefit)

The income tax provision (benefit) consisted of the following (in thousands):

	Year Ended
	December 31,
	2020		2019
Current portion:
Federal	$	—	$	(182	)
Deferred portion:
Federal		—		182
	$	—	$	—

Significant Components of Deferred Tax Assets and Liabilities

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

	Year Ended
	December 31,
	2020			2019
Deferred tax assets:
Federal and state loss carryforwards	$	3,031		$	1,697
Reserves, accruals and other		239			156
Depreciation and amortization		1,284			1,629
Deferred stock-based compensation		2,698			2,613
Research and development credit carryforwards		6,613			6,707
Foreign tax and other credits		-			61
Total deferred tax assets		13,865			12,863
Less: Valuation allowance		(13,865	)		(12,802	)
Net deferred tax assets	$	—		$	61

Reconciliation of Income taxes Provided at Federal Statutory Rate to Actual Income Tax Provision (Benefit)

A reconciliation of income taxes provided at the federal statutory rate (21%) to the actual income tax provision is as follows (in thousands):

	Year Ended
	December 31,
	2020			2019
Income tax benefit computed at U.S. statutory rate	$	(794	)	$	(542	)
Research and development credits		(66	)		(170	)
Amortization of intangible assets		(60	)		(60	)
Goodwill impairment		—			17
Valuation allowance changes affecting tax provision		919			752
Other		1			3
Income tax provision	$	—		$	—