Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 59,447	$ 49,255
Marketable securities, available for sale	51,402	33,852
Prepaid expenses and other current assets	2,720	4,857
Total current assets	113,569	87,964
Property and equipment, net	45	59
Other non-current assets	983	1,068
Total assets	114,597	89,091
Current liabilities:
Accounts payable	344	507
Accrued expenses	2,419	3,638
Total current liabilities	2,763	4,145
Non-current liabilities:
Long-term debt, net of discount	30,916	30,137
Total liabilities	33,679	34,282
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.0001 par value; 10,000,000 shares authorized as of June 30, 2024 and December 31, 2023; no shares issued or outstanding as of June 30, 2024 and December 31, 2023	0	0
Common stock, $0.0001 par value; 500,000,000 shares authorized as of June 30, 2024 and December 31, 2023, respectively; 54,712,132 and 42,470,264 shares issued as of June 30, 2024 and December 31, 2023, respectively; 54,654,495 and 42,422,531 shares outstanding as of June 30, 2024 and December 31, 2023, respectively	5	4
Additional paid-in capital	298,178	250,825
Accumulated other comprehensive income (loss)	(26)	9
Treasury stock, 57,637 and 47,733 shares as of June 30, 2024 and December 31, 2023, respectively; at cost	(101)	(59)
Accumulated deficit	(217,138)	(195,970)
Total stockholders' equity	80,918	54,809
Total liabilities and stockholders' equity	$ 114,597	$ 89,091

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).

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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).