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Cryptocurrencies (Tables) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract] |  |
Summary of additional information about cryptocurrencies | The following table presents additional information about cryptocurrencies as follows:
|  | Three months ended March 31, 2024 |  |  | Year-ended December 31, 2023 |
Beginning balance |  | $ | 142 |  |  | $ | 51 |
Cumulative effect of change in accounting principle |  | $ | 3 |  |  | $ | — |
Cryptocurrencies received from mining |  |  | 3,220 |  |  |  | 9,137 |
Mining services revenue |  |  | 255 |  |  |  | 844 |
Mining pool operating fees |  |  | (7 | ) |  |  | (13 | )
Proceeds from sale of cryptocurrencies |  |  | (3,009 | ) |  |  | (9,943 | )
Unrealized gain on fair value of cryptocurrency, net |  |  | 62 |  |  |  | — |
Realized gain on sale of cryptocurrencies and consideration paid |  |  | 109 |  |  |  | 351 |
Impairment of cryptocurrencies |  |  | — |  |  |  | (285 | )
Ending balance |  | $ | 775 |  |  | $ | 142 |
Number of bitcoin held |  | $ | 11.13 |  |  | $ | 3.44 |
Average cost basis—per bitcoin |  | $ | 67,759 |  |  | $ | 41,537 |
Fair value—per bitcoin |  |  | 69,689 |  |  |  | 42,288 |
Cost basis of bitcoin (in ‘000s) |  |  | 754 |  |  |  | 142 |
Fair value of bitcoin (in ‘000s) |  | $ | 775 |  |  | $ | 145 |
| The following table presents additional information about cryptocurrencies as follows:
|  | Year Ended |
|  | December 31, 2023 |  |  | December 31, 2022 |
Beginning balance |  | $ | 51 |  |  | $ | 15,050 |
Cryptocurrencies received from mining |  |  | 9,137 |  |  |  | 13,496 |
Mining services revenue |  |  | 844 |  |  |  | 884 |
Mining pool operating fees |  |  | (13 | ) |  |  | (19 | )
Consideration paid related to operation agreement |  |  | — |  |  |  | (461 | )
Proceeds from sale of cryptocurrencies |  |  | (9,943 | ) |  |  | (26,871 | )
Realized gain on sale of cryptocurrencies and consideration paid |  |  | 351 |  |  |  | 3,998 |
Impairment of cryptocurrencies |  |  | (285 | ) |  |  | (6,026 | )
Ending balance |  | $ | 142 |  |  | $ | 51 |
Schedule of Activities of the Bitcoin | The following table presents information based on the activity of bitcoin for the three months ended March 31, 2024:
Balance as of December 31, 2023 |  | $ | 142 |
Cumulative effect of the adoption of ASC 350-60 |  |  | 3 |
Adjusted beginning balance, at fair value |  |  | 145 |
Addition of bitcoin from mining activities |  |  | 3,468 |
Bitcoin sold and issued for operations |  |  | (2,947 | )
Unrealized gains from fair value adjustments |  |  | 109 |
Balance as of March 31, 2024 |  | $ | 775 |

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