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SUPPLEMENTAL FINANCIAL INFORMATION (Tables)
 12 Months Ended
Dec. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Schedules of Concentration of Risk, by Risk Factor
The Company’s outstanding trade receivables from its major customers are as follows:
December 31,
20242023
Customer 1$13,091 $— 
Customer 25,980 — 
Customer 33,150 — 
Customer 4291 291 
The Company’s outstanding trade receivables by country of customer are as follows:
December 31,
20242023
Japan$13,091 $— 
China11,571 — 
Spain1,908 — 
Mexico1,052 — 
South Korea601 — 
Netherlands434 — 
Estonia291 291 
U.S.71 115 
Total trade receivables$29,019 $406 
Schedule of Other Nonoperating Income (Expense)
The components of other income (loss) are as follows:
Years Ended December 31,
202420232022
Realized loss on investments$— $(10,491)$— 
Interest income (expense), net and other5,859 5,697 (166)
Unrealized loss on marketable securities(8,989)(530)(456)
Foreign exchange gain223 423 2,058 
Unrealized gain (loss) on investments— 15,472 (16,808)
Realized gain on convertible note— 1,430 — 
Realized gain on maturities of marketable securities2,310 1,141 — 
Other income (loss)$(597)$13,142 $(15,372)
Schedule of Accounts Payable and Accrued Liabilities
The components of accounts payable and accrued liabilities are as follows:
December 31,
20242023
Mine closure redundancy$9,169 $— 
Accounts payable7,508 1,006 
Accrued payroll liabilities6,558 4,162 
Accrued operating expenses6,507 4,391 
Accrued taxes1,673 393 
Deferred revenue813 — 
Accrued capital expenditures— 205 
Other accrued liabilities— 4 
Total accounts payable and accrued liabilities$32,228 $10,161