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Net cash requirement for merger and listing.

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Organization consolidation and presentation of financial statements.

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Percentage of full time employees terminated.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity.

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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Price of a single share of a number of saleable stocks of a company.

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Description of the reverse stock split arrangement. Also provide the retroactive effect given by the reverse split that occurs after the balance sheet date but before the release of financial statements.

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Organization - Additional Information (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands			1 Months Ended	2 Months Ended	3 Months Ended	9 Months Ended
	Sep. 20, 2022	Jun. 06, 2022	Jul. 31, 2022	Sep. 30, 2022	Sep. 30, 2022	Sep. 30, 2022	Sep. 30, 2021	Oct. 03, 2022	Sep. 12, 2022	Aug. 31, 2022	Dec. 31, 2021
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Net cash requirement for merger and listing									$ 8,000
Reverse stock split ratio, description	On September 20, 2022, the Company’s board of directors approved a reverse stock split ratio of 1-for-50 (the “Reverse Stock Split”).
Common stock, shares issued	68,200			1,423	1,423	1,423					140
Common stock, shares outstanding	68,200			1,423	1,423	1,423					140
One-time severance payments		$ 600		$ 300	$ 326	$ 910
Accumulated deficit				196,978	196,978	196,978					$ 178,272
Cash and cash equivalents				$ 13,657	$ 13,657	13,657					$ 15,045
Net cash used in operating activities						$ 19,543	$ 21,914
ATM Offering [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Proceeds from warrant exercises and sales of common stock			$ 18,200
Board of Directors [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Percentage of full time employees terminated				20.00%
Subsequent Event [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Common stock, shares issued								1,400
Common stock, shares outstanding								1,400
Minimum [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Additional expected financing to consummate pending merger									2,000
Maximum [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Additional expected financing to consummate pending merger									$ 3,000
Average price per share										$ 0.20
Maximum [Member] \| Board of Directors [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Percentage of full time employees terminated		65.00%				85.00%