Note 8 - Convertible Notes, Embedded Derivatives and Pre-Funded Warrants - Schedule of Debt and Other Financing Activities (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | |
|---|---|---|---|
Mar. 31, 2026 |
Jun. 30, 2026 |
Dec. 31, 2025 |
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| Gross convertible notes payable | $ 5,050 | ||
| Unamortized debt discount | (424) | ||
| Convertible notes payable, net of discount | 3,813 | ||
| Convertible notes payable, net of discount | 5,049 | $ 0 | |
| Accrued interest payable | 189 | $ 0 | |
| Issuance of pre-funded warrant | $ 1,420 | 1,964 | |
| Gain on change in fair value of embedded derivatives | 462 | ||
| Coupon interest expense | (189) | ||
| Total interest expense | (614) | ||
| Embedded Conversion Features [Member] | |||
| Derivative liabilities, written covered Bitcoin call options | 1,236 | ||
| Convertible Debt [Member] | |||
| Unamortized debt discount | $ (1,237) |
| X | ||||||||||
- Definition The gross amount of convertible debt. No definition available.
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- Definition Amount of convertible debt classified as current, net of discounts. No definition available.
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- Definition The amount of expense for the coupon interest. No definition available.
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- Definition Amount of gain (loss) from the fair value adjustments of embedded derivatives. No definition available.
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| X | ||||||||||
- Definition Amount of increase in additional paid in capital (APIC) resulting from the issuance of warrants. Includes allocation of proceeds of debt securities issued with detachable stock purchase warrants. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Carrying value as of the balance sheet date of the portion of long-term debt due within one year or the operating cycle if longer identified as Convertible Notes Payable. Convertible Notes Payable is a written promise to pay a note which can be exchanged for a specified amount of another, related security, at the option of the issuer and the holder. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of the cost of borrowed funds accounted for as interest expense for debt. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Details
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- Details
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