Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 2,442	$ 13,493
Marketable securities	5,760	1,999
Short-term deposit	3
Restricted cash	77	87
Prepaid expenses and other current assets	532	300
Total current assets	8,814	15,879
Property and equipment, net	221	244
Operating right-of-use assets	502	644
Total assets	9,537	16,767
Current liabilities:
Accounts payables	116	279
Lease liabilities	283	278
Accrued liabilities	1,670	1,427
Total current liabilities	2,069	1,984
Non-current liabilities:
Long-term lease liabilities	179	402
Total liabilities	2,248	2,386
Commitments and contingencies
Stockholders’ equity:
Common stock; $0.01 par value; 60,000,000 shares authorized as of December 31, 2022 and 2021; 7,890,628 and 7,108,133 shares issued and outstanding as of December 31, 2022 and 2021, respectively.	80	72
Additional paid-in capital	75,970	69,902
Accumulated deficit	(68,761)	(55,593)
Total stockholders’ equity	7,289	14,381
Total liabilities and stockholders’ equity	$ 9,537	$ 16,767

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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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).