Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 36,640	$ 8,305
Marketable securities, available for-sale	7,762	82,575
Prepaid expenses and other current assets	851	1,266
Total current assets	45,253	92,146
Property, plant and equipment-net	0	707
Other Assets		26
Total assets	45,253	92,879
Current liabilities:
Accounts payable	3,435	12,908
Accrued liabilities	2,687	3,703
Total current liabilities	6,122	16,611
Total liabilities	6,122	16,611
Stockholders' (deficit) equity:
Preferred stock, $0.01 par value; 10,000,000 shares authorized, no shares issued and outstanding as of December 31, 2022 and 2021	0	0
Common stock, $0.01 par value; 200,000,000 shares authorized, 40,254,890 shares issued and outstanding as of December 31, 2022 and 2021	403	403
Additional paid-in-capital	172,212	170,241
Accumulated other comprehensive loss	(57)	(225)
Accumulated deficit	(133,427)	(94,151)
Total stockholders' equity	39,131	76,268
Total liabilities and stockholders' equity	$ 45,253	$ 92,879

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).