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Prepaid Expenses and Other Current Assets - Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands | Mar. 31, 2026 | Dec. 31, 2025
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Schedule of Prepaid Expenses and Other Current Assets [Abstract] |  |  |
Director and officer’s insurance |  | $ 1,589 | $ 2,212
Aircraft engines deposit |  |  | 1,216
Derivative instruments, including collateral posted | [1] | 1,634 |
Leasehold improvement deposit |  | 988 | 988
Professional fees |  | 314 | 78
Other |  | 6 | 20
Total prepaid expenses and other current assets |  | $ 4,531 | $ 4,514
[1] | Includes cash collateral related to ETH-denominated derivative instruments. See Note 5 – Digital Assets.

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