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Note 3 - Fair Value Measurements | 3 Months Ended
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Mar. 31, 2026
Notes to Financial Statements |
Fair Value Disclosures [Text Block] | NOTE 3. FAIR VALUE MEASUREMENTS The following tables present the Company’s financial instruments measured at fair value on a recurring basis as of March 31, 2026 and December 31, 2025 (in thousands):
|  |  |  |  |  | Fair Value Measurements Using |
|  |  |  |  |  | Quoted |  |  |  |  |  |  |  |  |
|  |  |  |  |  | Prices in |  |  |  |  |  |  |  |  |
|  |  |  |  |  | Active |  |  |  |  |  |  |  |  |
|  |  |  |  |  | Markets |  |  | Significant |  |  |  |  |
|  |  |  |  |  | for |  |  | Other |  |  | Significant |
|  | Balance at |  |  | Identical |  |  | Observable |  |  | Unobservable |
|  | March 31, |  |  | Items |  |  | Inputs |  |  | Inputs |
|  | 2026 |  |  | (Level 1) |  |  | (Level 2) |  |  | (Level 3) |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash held as a certificate of deposit |  | $ | 435 |  |  | $ | 435 |  |  | $ | — |  |  | $ | — |
SKY digital assets |  | $ | 160,086 |  |  | $ | 160,086 |  |  | $ | — |  |  | $ | — |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrant liability |  | $ | 33,715 |  |  | $ | — |  |  | $ | 33,715 |  |  | $ | — |
|  |  |  |  |  | Fair Value Measurements Using |
|  |  |  |  |  | Quoted |  |  |  |  |  |  |  |  |
|  |  |  |  |  | Prices in |  |  |  |  |  |  |  |  |
|  |  |  |  |  | Active |  |  |  |  |  |  |  |  |
|  |  |  |  |  | Markets |  |  | Significant |  |  |  |  |
|  |  |  |  |  | for |  |  | Other |  |  | Significant |
|  | Balance at |  |  | Identical |  |  | Observable |  |  | Unobservable |
|  | December 31, |  |  | Items |  |  | Inputs |  |  | Inputs |
|  | 2025 |  |  | (Level 1) |  |  | (Level 2) |  |  | (Level 3) |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash held as a certificate of deposit |  | $ | 267 |  |  | $ | 267 |  |  | $ | — |  |  | $ | — |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrant liability |  | $ | 639,071 |  |  | $ | — |  |  | $ | 639,071 |  |  | $ | — |
The Company's restricted cash held as a deposit is classified within Level 1 of the fair value hierarchy because it is valued using quoted market prices in active markets, broker or dealer quotations, or alternative pricing sources with reasonable levels of price transparency. SKY digital assets are measured at fair value on a recurring basis using quoted prices in the Company's principal market (Level 1 inputs) in accordance with ASC 820. The Company did not hold any digital assets as of December 31, 2025. The Company determines its principal market as the market with the greatest volume and level of activity for SKY that is accessible to the Company. In making this determination, the Company considers factors including (i) its ability to legally and operationally transact in the market, (ii) observed trading volume and liquidity, (iii) pricing transparency and reliability, and (iv) the market in which the Company primarily executes its transactions. Although certain global exchanges may report higher aggregate trading volumes, those markets are not considered accessible to the Company due to regulatory and operational constraints. Accordingly, the Company has concluded that Coinbase Exchange represents its principal market, as it exhibits the greatest volume and level of activity for SKY among markets accessible to the Company and provides observable, orderly pricing in USD-denominated markets. The warrant liabilities as of March 31, 2026 and December 31, 2025 were measured at fair value based on the intrinsic value of the warrants, determined using the quoted market price of the Company's common stock at the measurement date. Because the warrants themselves were not actively traded and the valuation relied on observable market inputs other than quoted prices for identical instruments, the liabilities were classified within Level 2 of the fair value hierarchy. Warrant Liabilities Pre-funded warrants with a nominal exercise price are economically similar to common stock and are measured based on intrinsic value, calculated as the market price of the Company's common stock less the nominal exercise price, multiplied by the number of warrant shares outstanding. The October 2025 Pre-Funded Warrants remain classified as a liability as of March 31, 2026 and are measured at intrinsic value based on the closing price of the Company's common stock as of the reporting date. The Company had no warrant liabilities outstanding as of March 31, 2025. The fair value of the January 2026 Pre-Funded Warrants (as defined in Note 8, “Financing Activities”) at issuance was determined using the closing price of the Company's common stock on January 20, 2026 (the first trading day following the announcement of the January 2026 Private Placement, which was made after market close on January 16, 2026). See Note 10, “Common Stock Warrants and Warrant Liabilities” for additional information and the definitions related to the Company's warrants.

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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 107 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-107 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2E -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 940 -SubTopic 820 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478119/940-820-50-1 + Details
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