Commitments and Contingencies (Details)		1 Months Ended
	May 04, 2022	Aug. 31, 2022 USD ($)	Sep. 30, 2022 USD ($) entity	Dec. 31, 2021 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Restricted cash, long-term			$ 10,000,000	$ 10,027,000
Other Commitments [Line Items]
Retention agreements amount of retention pay		$ 1,000,000
Employee-related liabilities			1,100,000
Five Forks Mine
Other Commitments [Line Items]
Surety bond amount			7,500,000	7,500,000
Marshall Mine
Other Commitments [Line Items]
Surety bond amount			$ 16,600,000	$ 16,600,000
Plan | In August 2022
Other Commitments [Line Items]
Retention agreements, percent of retention pay	40.00%
Plan | Employment Date or Transaction Date
Other Commitments [Line Items]
Retention agreements, percent of retention pay	60.00%
Retention agreements, benchmark period	90 days
Plan | Additional Lump Sum Payment
Other Commitments [Line Items]
Retention agreements, benchmark period	90 days
Plan | Additional Lump Sum Payment | Minimum
Other Commitments [Line Items]
Retention agreements, percent of retention pay	10.00%
Plan | Additional Lump Sum Payment | Maximum
Other Commitments [Line Items]
Retention agreements, percent of retention pay	40.00%
Tinuum Group, LLC
Related Party Transaction [Line Items]
Number of entities affiliated with related parties | entity			2
Limited guarantees, percent			50.00%
Liabilities or expense			$ 0