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).

Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2022	Jun. 30, 2022	May 17, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Assets, Current [Abstract]
Cash and cash equivalents	$ 4,732				$ 3,702				$ 109
Marketable securities, available-for-sale	419				3,808				0
Prepaid expenses and other current assets	418				619				565
Total current assets	5,569				8,129				674
Other assets	0				206				279
Total assets	5,569				8,335				955
Liabilities, Current [Abstract]
Accounts payable	1,185				918				1,226
Accrued expenses	700				1,430				847
Warrant liability	225		$ 225		0
Other current liabilities	0				97				105
Total current liabilities	2,110				2,445				2,225
Other liabilities	0				72				170
Total liabilities	2,110				2,517				2,409
Commitments and contingencies (Note 9)
Stockholders' equity (deficit):
Common stock, $0.0001 par value; 250,000,000 shares authorized; 6,812,836 and 4,506,216 shares issued and outstanding as of December 31, 2021 and 2020, respectively	1				0				0
Additional paid-in-capital	30,802				27,722				11,145
Accumulated other comprehensive loss	(1)				(2)				0
Accumulated deficit	(27,343)				(21,902)				(12,599)
Total stockholders' equity (deficit)	3,459	$ 3,666		$ 3,360	5,818	$ 8,729	$ 9,853	$ 12,027	(1,454)	$ 3,214
Total liabilities and stockholders' equity (deficit)	$ 5,569				$ 8,335				$ 955