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LEASES - Narrative (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Lessee, Lease, Description [Line Items]    
Operating lease right-of-use assets $ 217 $ 336
Lease liability 220  
Operating lease liability, current $ 134 $ 117
Lease not yet commenced, Term 5 years  
Total lease payments $ 238  
Net present value of lease not yet commenced $ 1,200  
Building    
Lessee, Lease, Description [Line Items]    
Lease extension term 3 years  
Lessee, Operating Lease, Existence of Option to Extend [true false] true  
Option to extend, renewal term 3 years  
Lessee, Operating Lease, Option to Terminate however, the renewal option and any option to terminate is not reasonably certain  
Lessee, Operating Lease, Assumptions and Judgments, Allocation of Lease and Nonlease Component Because these amounts are related to common area maintenance of the leased space, they are considered a non-lease component and are not included in the measurement of the right-of-use asset and related lease liability, but rather expensed in the period incurred.  
Building | Centennial, Colorado    
Lessee, Lease, Description [Line Items]    
Total lease payments $ 200  
Minimum    
Lessee, Lease, Description [Line Items]    
Lease term using a discount rate 3.00%  
Maximum    
Lessee, Lease, Description [Line Items]    
Lease term using a discount rate 12.00%  
Maximum | Land used in exploration and mining activities, office equipment, machinery, office space, storage and other    
Lessee, Lease, Description [Line Items]    
Term of contract 1 year