Description of Business and Basis of Presentation - Going Concern, and Liquidity and Capital Resources (Details) - USD ($) $ in Thousands, shares in Millions |
5 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2026 |
Jun. 30, 2026 |
Mar. 31, 2026 |
Dec. 31, 2025 |
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| Subsequent Event [Line Items] | |||||
| Accumulated deficit | $ 531,751 | $ 531,751 | $ 515,059 | $ 504,406 | $ 498,143 |
| Cash and short-term investments | 75,700 | 75,700 | |||
| At-the-Market Equity Program | |||||
| Subsequent Event [Line Items] | |||||
| Gross proceeds from issuance of common stock | $ 59,400 | 50,000 | |||
| Sale of Stock, Consideration Received Per Transaction | 100,000 | ||||
| Shares sold | 2.2 | ||||
| Gross proceeds from Offering | $ 59,400 | $ 50,000 | |||
| Stock issuance cost | 2,000 | ||||
| Net proceeds from the offering | $ 57,400 |
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- Definition Cash includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the customer may deposit additional funds at any time and effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid Investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Short-term investments, exclusive of cash equivalents, generally consist of marketable securities intended to be sold within one year (or the normal operating cycle if longer) and may include trading securities, available-for-sale securities, or held-to-maturity securities (if maturing within one year), as applicable. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The cash outflow for cost incurred directly with the issuance of an equity security. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cash inflow from the additional capital contribution to the entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of accumulated undistributed earnings (deficit). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of consideration received by subsidiary or equity investee in exchange for shares of stock issued or sold. Includes amount of cash received, fair value of noncash assets received, and fair value of liabilities assumed by the investor. No definition available.
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- Definition The number of shares issued or sold by the subsidiary or equity method investee per stock transaction. No definition available.
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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Gross proceeds form issuance of common stock. No definition available.
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- Details
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