S000011692 [Member] Annual Total Returns |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Midas Discovery | Midas Discovery | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 195.76% | 7.27% | (1.79%) | (11.11%) | (19.23%) | 10.64% | 30.56% | (12.90%) | 5.98% | 64.79% |