Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2022

Summary of Significant Accounting Policies

Schedule of cash equivalents and restricted cash

	December 31,
	2022		2021
Cash and cash equivalents	$	20,525	$	86,508
Restricted cash (1)		163		121
Total	$	20,688	$	86,629

(1)Included as a component of other long-term assets at December 31, 2022 and prepaid expenses and other current assets and at December 31, 2021.

Schedule of stock-based compensation expense

	Year Ended December 31,
	2022		2021
Research and development	$	1,318	$	1,131
General and administrative		3,236		2,230
Total	$	4,554	$	3,361

Schedule of anti-dilutive common stock equivalents excluded from the calculation of diluted net loss per share

	Year Ended December 31,
	2022	2021
Series X Preferred Stock	5,242,501	5,242,501
Stock options	2,253,431	1,346,733
Common stock warrants	1,530,176	1,530,380
	9,026,108	8,119,614