| Line Item | Jun 30, 2026 | Dec 31, 2025 | Sep 30, 2025 | Jun 30, 2025 | Mar 31, 2025 | Dec 31, 2024 | Sep 30, 2024 | Jun 30, 2024 | Mar 31, 2024 | Dec 31, 2023 | Sep 30, 2023 | Jun 30, 2023 | Mar 31, 2023 | Dec 31, 2022 | Sep 30, 2022 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Staking revenue | — | ||||||||||||||
| YoY growth | — | — | — | ||||||||||||
| Unrealized gain on digital assets | — | — | |||||||||||||
| Operating expenses: | |||||||||||||||
| General and administrative | |||||||||||||||
| Impairment of long-lived assets | |||||||||||||||
| Total operating expenses | |||||||||||||||
| % of revenue | 245.6% | — | 249.1% | ||||||||||||
| Operating loss | |||||||||||||||
| % of revenue | -2440.8% | — | -241.1% | ||||||||||||
| Non-cash loss on fair value of warrant liabilities in excess of proceeds at issuance | — | — | |||||||||||||
| Non-cash gain on changes in fair value of warrant liabilities | |||||||||||||||
| Other expense, net | |||||||||||||||
| Total non-operating income (expense), net | — | — | |||||||||||||
| Net (loss) income from continuing operations, before taxes | — | — | |||||||||||||
| Income tax (benefit) | — | — | |||||||||||||
| Net (loss) income from continuing operations | |||||||||||||||
| Net income from discontinued operations, net of taxes (Note 13) | |||||||||||||||
| Net (loss) income attributable to common stockholders | |||||||||||||||
| % of revenue | -1861.7% | — | -248.2% | ||||||||||||
| Basic and diluted net (loss) income per share attributable to common stockholders: | |||||||||||||||
| Basic (loss) earnings per share attributable to common stockholders (in dollars per share) | — | ||||||||||||||
| Diluted (loss) earnings per share attributable to common stockholders (in dollars per share) | — |