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Mining Equipment, Net - Schedule of Mining Equipment (Details) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Mining equipment      
Balance, beginning of year $ 17,109,000 $ 15,978,000 $ 47,599,000
Additions 686,000 1,573,000 1,894,000
Disposals (442,000) (105,000)
Ending balance 17,795,000 17,109,000 15,978,000
Accumulated depreciation      
Balance, beginning of year 14,115,000 3,062,000 13,231,000
Additions 1,071,000 11,179,000  
Disposals (126,000)  
Ending balance 15,186,000 14,115,000 3,062,000
Net carrying amount $ 2,609,000 $ 2,994,000 $ 12,916,000