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 |
|
| Guinness Atkinson Global Innovators Fund - ETF Class | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 20.54% | 19.83% | 39.70% | (29.51%) | 21.86% | 36.46% | 37.35% | (16.59%) | 35.07% | 9.81% |