Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 92,761	$ 106,745
Investments - other	4,351	9,629
Other current assets and prepaid expenses	9,470	9,490
Total current assets	106,582	125,864
Property and equipment, net	288	294
Right-of-use assets, net	1,959	1,552
Other long-term assets	43	43
Total assets	108,872	127,753
Current liabilities:
Accounts payable	5,241	4,281
Accrued expenses	10,183	7,986
Other current liabilities	878	810
Total current liabilities	16,302	13,077
Long-term liabilities
Operating lease liabilities	1,352	992
Total long-term liabilities	1,352	992
Total liabilities	17,654	14,069
Commitments and contingencies (Note 4)
Stockholders’ equity:
Preferred stock, $0.0001 par value; 20,000,000 authorized and no shares issued or outstanding as of March 31, 2023 and December 31, 2022	0	0
Common stock, $0.0001 par value; 130,000,000 shares authorized and 44,403,838 and 39,307,286 shares issued and outstanding as of March 31, 2023 and December 31, 2022, respectively	4	4
Additional paid-in capital	429,955	427,925
Accumulated other comprehensive income	3,811	3,035
Accumulated deficit	(342,552)	(317,280)
Total stockholders’ equity	91,218	113,684
Total liabilities and stockholders’ equity	$ 108,872	$ 127,753

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).