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SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) | 3 Months Ended |  |  |
--- | --- | --- | --- | ---
Mar. 31, 2024 USD ($) miningPoolOperator bitcoinMiner operatingSegment $ / shares shares | Mar. 31, 2023 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Oct. 31, 2022 $ / shares
Significant Accounting Policies [Line Items] |  |  |  |  |
Cumulative-effect adjustment due to the adoption of Accounting Standard Update 2023-08 | $ 37,000 | $ 0 |  |  |
Cash exceeding FDIC limit | $ 0 |  |  |  |
Number of operating segments | operatingSegment | 1 |  |  |  |
Deposits on miners | $ 16,300,000 |  | $ 36,500,000 |  |
Percentage of changes in debt value and net presents value of future cash flows | 10.00% |  |  |  |
Quoted price of bitcoin | $ 38,000 |  |  |  |
Miner hosting revenue | 800,000 | 2,300,000 |  |  |
Impairment of intangible assets |  | 600,000 |  |  |
Power curtailment credits | $ 1,200,000 | 100,000 |  |  |
Number of common stock issued upon conversion of preferred stock (in shares) | shares | 1,200,000 |  |  |  |
Warrants outstanding (in shares) | shares | 49,120,642 |  |  |  |
Exercise price of warrants (in dollars per share) | $ / shares | $ 0.58 |  |  |  | $ 1.93
Equity | $ 272,343,000 | 146,313,000 | 222,489,000 | $ 117,754,000 |
Gain on fair value of digital currency, net | $ 1,329,000 | 0 |  |  |
Number suppliers for bitcoin miners | bitcoinMiner | 2 |  |  |  |
Number of mining pool operators | miningPoolOperator | 1 |  |  |  |
Accumulated Deficit |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Equity | $ (269,471,000) | $ (212,731,000) | (259,895,000) | $ (186,474,000) |
Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Equity |  |  | 37,000 |  |
Cumulative Effect, Period of Adoption, Adjustment | Accumulated Deficit |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Equity |  |  | $ 37,000 |  |
Data center hosting customer | Revenue Benchmark | Customer Concentration Risk |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Concentration risk percentage | 1.80% | 17.20% |  |  |
Restricted Stock Units (RSUs) |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Number of shares outstanding (in shares) | shares | 11,590,695 |  |  |  |
Computer Equipment |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Property, plant and equipment, useful life | 5 years |  |  |  |
Digital Currency Mining Equipment |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Property, plant and equipment, useful life | 4 years |  |  |  |

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