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 |
|
| Wireless Fund | Wireless Fund Shares | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 26.57% | 38.33% | 57.70% | (34.71%) | 22.81% | 41.05% | 36.66% | (4.47%) | 29.76% | 7.01% |