Organization and Operations (Details) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
May 24, 2024 |
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| Debt Instrument [Line Items] | |||
| Cash and cash equivalents | $ 2,990,000 | $ 9,173,000 | |
| Investments | 16,279,000 | 302,000 | |
| Restricted cash and cash equivalents and restricted short-term investments | 10,300,000 | ||
| Working capital | 22,400,000 | ||
| Debt instrument, covenant, cash balance maximum | 11,000,000 | $ 11,000,000 | |
| Accumulated deficit | 719,620,000 | 693,225,000 | |
| Net cash used in operating activities | 16,345,000 | $ 68,922,000 | |
| Convertible Debt | |||
| Debt Instrument [Line Items] | |||
| Fair value of debt | 20,000,000 | ||
| Convertible Debt | Convertible Secured Debentures | |||
| Debt Instrument [Line Items] | |||
| Fair value of debt | $ 10,300,000 | $ 20,000,000 | |
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- Definition Debt Instrument, Covenant, Cash Balance Maximum No definition available.
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- Definition Working Capital No definition available.
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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash and cash equivalent. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash inflow (outflow) from operating activity, including, but not limited to, discontinued operation. Operating activity includes, but is not limited to, transaction, adjustment, and change in value not defined as investing or financing activity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Cash and investments whose use in whole or in part is restricted for the long-term, generally by contractual agreements or regulatory requirements. For use in an unclassified balance sheet. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of accumulated undistributed earnings (deficit). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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- Details
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