Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2022	Jun. 30, 2021
Debt Instrument [Line Items]
Cash interest paid		$ 2,591	$ 532
Significant non-cash financing and investing activities:
Increase in debt from in-kind interest		4,766	6,914
Mobile equipment acquired by note payable		0	407
Plant, equipment, and mine development additions included in accounts payable		163	390
Stock issuance - other	$ 158	158	0
Liability based restricted stock units transferred to equity		77	284
Accrual of equity issuance costs in accounts payable		1,789	0
1.5 Lien Notes to common stock
Significant non-cash financing and investing activities:
Debt issuance costs paid in-kind		$ 3,300	$ 0