LEASES - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Lessee, Lease, Description [Line Items]
Right-of-use lease asset	$ 122		$ 226
Lease liability	128		235
Operating lease liability, current	$ 128		152
Lease term using a discount rate	9.50%
Lease expense:
Operating lease cost	$ 115	$ 115
Supplemental cash flow information related to leases:
Cash flows from operating leases	119	115
Operating leases	122	$ 258
Supplemental balance sheet information related to leases:
Operating lease right-of-use assets	122		226
Operating lease liability, current	128		152
Operating lease liabilities - long term portion			83
Total operating lease liabilities	$ 128		$ 235
Weighted Average Remaining Lease Term (in years)	9 months 18 days	1 year 9 months 18 days
Discount Rate	9.50%	9.50%
Corporate office
Lessee, Lease, Description [Line Items]
Variable lease terms	Because these amounts are variable from year to year and not specifically set in the lease terms, they are not included in the measurement of the right-of-use asset and related lease liability, but rather expensed in the period incurred.
Lessee, Operating Lease, Existence of Option to Extend [true false]	true
Option to extend, renewal term	3 years
Supplemental balance sheet information related to leases:
Lessee, Operating Lease, Variable Lease Payment, Terms and Conditions	Because these amounts are variable from year to year and not specifically set in the lease terms, they are not included in the measurement of the right-of-use asset and related lease liability, but rather expensed in the period incurred.
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