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Stock-Based Compensation (Tables) | 3 Months Ended | 9 Months Ended
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Dec. 31, 2024 | Sep. 30, 2025
Stock-Based Compensation [Abstract] |  |
Schedule of Stock Options Activity | Activity in the Old Nukk Plan for the three months ended December 31, 2024 and the years ended September 30, 2024 and 2023 is summarized as follows:
|  | Number of Options |  |  | Weighted Average Exercise Price |
Outstanding at September 30, 2022 |  |  | 20,896 |  |  | $ | 187.87 |
Expired |  |  | (5,358 | ) |  |  | (186.67 | )
Outstanding at September 30, 2023 and 2024 |  |  | 15,538 |  |  |  | 188.28 |
Forfeited |  |  | (10,715 | ) |  |  | (25.2 | )
Outstanding at December 31, 2024 |  |  | 4,823 |  |  |  | (550.60 | )
Options exercisable at December 31, 2024 |  |  | 4,823 |  |  | $ | 550.60 |
Options expected to vest |  |  | — |  |  | $ | — |
| Total stock options activity for the nine months ended September 30, 2025 is summarized as follows:
|  | Number of Options |  |  | Weighted Average Exercise Price |
Outstanding at December 31, 2024 |  |  | 104,823 |  |  | $ | 27.61 |
Exercised |  |  | (100,000 | ) |  |  | - |
Outstanding at September 30, 2025 |  |  | 4,823 |  |  |  | 550.60 |
Options exercisable at September 30, 2025 |  |  | 4,823 |  |  | $ | 550.60 |
Options expected to vest |  |  | — |  |  | $ | — |

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