Note 6 - Investment in Juanicipio (Details Textual)
|
|
|
12 Months Ended |
|
|
|
Jul. 01, 2005
USD ($)
|
Jul. 16, 2003 |
Dec. 31, 2021
USD ($)
oz
t
|
Dec. 31, 2020
USD ($)
oz
t
|
Dec. 27, 2021 |
Dec. 31, 2008 |
| Statement Line Items [Line Items] |
|
|
|
|
|
|
| Expense arising from exploration for and evaluation of mineral resources |
|
|
$ 49,000
|
$ 15,000
|
|
|
| Fresnillo [member] |
|
|
|
|
|
|
| Statement Line Items [Line Items] |
|
|
|
|
|
|
| Percentage of ownership of common shares |
|
|
10.00%
|
|
|
|
| Juanicipio property [member] | Industrias Penoles, S.A. de C.V. [member] |
|
|
|
|
|
|
| Statement Line Items [Line Items] |
|
|
|
|
|
|
| Proportion of ownership interest in associate |
56.00%
|
|
|
|
|
|
| Expense arising from exploration for and evaluation of mineral resources |
$ 5,000,000
|
|
|
|
|
|
| Term of exploration and evaluation of mineral resources (Year) |
4 years
|
|
|
|
|
|
| Juanicipio property [member] | Industrias Penoles, S.A. de C.V. [member] | MAG Silver Corporation [member] |
|
|
|
|
|
|
| Statement Line Items [Line Items] |
|
|
|
|
|
|
| Issue of equity to associate |
$ 1,000,000
|
|
|
|
|
|
| Number of tranches to buy common shares from an associate |
2
|
|
|
|
|
|
| Juanicipio property [member] | Industrias Penoles, S.A. de C.V. [member] | MAG Silver Corporation [member] | Common shares in tranche one [member] |
|
|
|
|
|
|
| Statement Line Items [Line Items] |
|
|
|
|
|
|
| Proceeds from issuing shares |
$ 500,000
|
|
|
|
|
|
| Minera Juanicipio, S.A. de C.V. [member] |
|
|
|
|
|
|
| Statement Line Items [Line Items] |
|
|
|
|
|
|
| Equity method investment, ownership percentage |
|
|
44.00%
|
44.00%
|
44.00%
|
44.00%
|
| Equity method investment, summarized financial information, income statement, sales |
|
|
$ 75,393,000
|
$ 15,335,000
|
|
|
| Equity method investment, summarized financial information, income statement, gross profit, cost of sale |
|
|
15,329,000
|
3,873,000
|
|
|
| Equity method investment, summarized financial information, income statement, gross profit |
|
|
$ 60,064,000
|
11,462,000
|
|
|
| Minera Juanicipio, S.A. de C.V. [member] | Fresnillo PLC [member] |
|
|
|
|
|
|
| Statement Line Items [Line Items] |
|
|
|
|
|
|
| Equity method investment, ownership percentage |
|
|
|
|
56.00%
|
56.00%
|
| Juanicipio Entities [member] |
|
|
|
|
|
|
| Statement Line Items [Line Items] |
|
|
|
|
|
|
| Equity method investment, ownership percentage |
|
|
44.00%
|
|
|
|
| Interest earned from advance to joint venture |
|
|
$ 1,316
|
567,000
|
|
|
| Equity method investment, summarized financial information, income statement, sales |
|
|
75,393
|
15,335,000
|
|
|
| Equity method investment, summarized financial information, income statement, gross profit, cost of sale |
|
|
15,329
|
3,873,000
|
|
|
| Equity method investment, summarized financial information, income statement, gross profit |
|
|
60,064
|
11,462,000
|
|
|
| Equity method investment, noncurrent assets, capital expenditures |
|
|
$ 262,829,000
|
$ 120,757,000
|
|
|
| Juanicipio Entities [member] | Silver [member] |
|
|
|
|
|
|
| Statement Line Items [Line Items] |
|
|
|
|
|
|
| Equity method investment, summarized financial information, income statement, sales in units (Ounce) | oz |
|
|
2,975,524
|
616,000
|
|
|
| Juanicipio Entities [member] | Gold [member] |
|
|
|
|
|
|
| Statement Line Items [Line Items] |
|
|
|
|
|
|
| Equity method investment, summarized financial information, income statement, sales in units (Ounce) | oz |
|
|
5,975
|
1,029
|
|
|
| Juanicipio Entities [member] | Lead [member] |
|
|
|
|
|
|
| Statement Line Items [Line Items] |
|
|
|
|
|
|
| Equity method investment, summarized financial information, income statement, sales in units (Ounce) | t |
|
|
1,065
|
163
|
|
|
| Juanicipio Entities [member] | Zinc [member] |
|
|
|
|
|
|
| Statement Line Items [Line Items] |
|
|
|
|
|
|
| Equity method investment, summarized financial information, income statement, sales in units (Ounce) | t |
|
|
1,519
|
224
|
|
|
| Juanicipio property [member] |
|
|
|
|
|
|
| Statement Line Items [Line Items] |
|
|
|
|
|
|
| Interest in Juanicipio property prior to joint venture agreement |
|
100.00%
|
|
|
|
|