Inventories and Ore on Leach Pads - Schedule of inventory (Details) $ in Thousands	Mar. 31, 2022 USD ($) oz	Dec. 31, 2021 USD ($) oz
Amount
Materials and supplies | $	$ 4,158	$ 4,376
Merrill-Crowe process plant | $	0	11
Carbon-in-column | $	6,028	3,493
Finished goods (doré and off-site carbon) | $	948	3,189
Total | $	$ 11,134	$ 11,069
Gold Ounces
Materials and supplies | oz	0	0
Merrill-Crowe process plant | oz	0	6
Carbon-in-column | oz	3,174	2,044
Finished goods (doré and off-site carbon) | oz	695	1,799
Total | oz	3,869	3,849