Revenue (Details) - USD ($)
$ in Thousands |
12 Months Ended |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
| Disaggregation of Revenue [Line Items] |
|
|
|
| Realized gain embedded derivative, net |
$ 777
|
$ 138
|
$ 1,423
|
| Unrealized gain (loss) - embedded derivative, net |
225
|
(185)
|
291
|
| Total sales, net |
125,196
|
90,692
|
120,301
|
| Dore |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Less: Treatment and refining charges |
(136)
|
(233)
|
(171)
|
| Total concentrate sales, net |
8,662
|
11,260
|
9,031
|
| Gold Dore |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Total concentrate sales, net |
8,120
|
8,719
|
6,763
|
| Silver Dore |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Total concentrate sales, net |
678
|
2,774
|
2,439
|
| Concentrate |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Less: Treatment and refining charges |
(11,349)
|
(20,907)
|
(13,825)
|
| Total concentrate sales, net |
115,532
|
79,479
|
109,556
|
| Gold Concentrate |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Total concentrate sales, net |
(32,593)
|
(22,145)
|
(27,184)
|
| Silver Concentrate |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Total concentrate sales, net |
26,095
|
20,391
|
21,347
|
| Copper Concentrate |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Total concentrate sales, net |
13,495
|
9,387
|
9,930
|
| Lead Concentrate |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Total concentrate sales, net |
13,442
|
12,012
|
16,116
|
| Zinc Concentrate |
|
|
|
| Disaggregation of Revenue [Line Items] |
|
|
|
| Total concentrate sales, net |
$ 41,256
|
$ 36,451
|
$ 48,804
|