Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Schedule of Assets and Liabilities Measured on Recurring Basis

Recurring fair value measurements:

	Fair Value Measurements as of December 31, 2021
	Level 1		Level 2		Level 3		Total
Assets:
Money market funds (1)	$	140,032	$	—	$	—	$	140,032
	Fair Value Measurements as of December 31, 2020
	Level 1		Level 2		Level 3		Total
Assets:
Money market funds (1)	$	3,041	$	—	$	—	$	3,041
Liabilities:
Convertible promissory notes	$	—	$	—	$	10,131	$	10,131

(1)  Included in cash and cash equivalents in the accompanying balance sheets.

Schedule of Assets and Liabilities Measured on Non-Recurring Basis

Non-Recurring fair value measurement:

	Fair Value Measurements as of December 31, 2021
	Level 1		Level 2		Level 3		Total
Assets:
Intangible asset	$	-	$	-	$	3,811	$	3,811

Reconciliation of Convertible Notes Measured at Fair Value Significant Unobservable Inputs

The following table provides a reconciliation of the Convertible Notes (refer to Note 9) measured at fair value using significant unobservable inputs (Level 3) (amounts in thousands):

	Convertible Notes
	(Level 3)
Balance as of December 31, 2019	$	8,165
Issuance of convertible promissory notes		1,000
Accrued interest		813
Change in fair value of convertible promissory notes		153
Balance as of December 31, 2020	$	10,131
Issuance of convertible promissory notes		-
Accrued interest		584
Change in fair value of convertible promissory notes		(1,585	)
Converted into common stock		(9,130	)
Balance as of December 31, 2021	$	—

Schedule of Potentially Dilutive Securities Excluded from Calculation of Diluted Net Loss Per Share

The following table sets forth the outstanding potentially dilutive securities that have been excluded in the calculation of diluted net loss per share because their inclusion would be anti-dilutive (amounts in thousands):

	Year Ended December 31,
	2021		2020
Options to purchase common stock		1,750		391
Warrants to purchase common stock		37		—
Series Seed convertible preferred stock		—		734
Series A convertible preferred stock		—		7,212