Provision for Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

Schedule of Provision for Income Taxes Differs from Amount Expected by Applying Federal Statutory Rate to Loss Before Taxes

The provision for income taxes differs from the amount expected by applying the federal statutory rate to the loss before taxes as follows:

	Year Ended December 31,
	2019			2018
Federal statutory income tax rate		21.00	%		21.00	%
Non-deductible expenses and other		(1.35	)%		(1.54	)%
Change in valuation allowance		(19.65	)%		(19.46	)%
Total		0.00	%		0.00	%

Schedule of Components of Deferred Tax Assets

As of December 31, 2019 and 2018, the components of the Company’s deferred tax assets are as follows (in thousands):

	Year Ended December 31,
	2019			2018
Deferred tax assets:
Federal and state net operating loss carryforwards	$	30,049		$	16,076
Research and development credits carryforwards		8,077			5,087
Depreciation		6,052			3,942
Deferred Revenue		3,277			3,909
Other		2,965			1,724
Total deferred tax assets		50,420			30,738
Less valuation allowance		(50,420	)		(30,738	)
Net deferred tax assets	$	-		$	-

Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits

A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in thousands):

	Year Ended December 31,
	2019			2018
Beginning balance	$	1,084		$	622
Additions (decreases) for tax positions taken in a prior year		(7	)		8
Additions for tax positions taken in current year		1,088			454
Ending balance	$	2,165		$	1,084