Annual Total Returns |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
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 |
Dec. 31, 2015 |
|
| MUSQ Global Music Industry Index ETF | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | (4.63%) | |||||||||
| ROBO Global(R) Robotics and Automation Index ETF | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | (1.22%) | 23.83% | (33.63%) | 15.28% | 44.34% | 29.51% | (20.43%) | 44.17% | 17.84% | (5.43%) |
| ROBO Global(R) Healthcare Technology and Innovation ETF | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 2.81% | (3.04%) | (33.56%) | (0.20%) | 65.22% | |||||
| ROBO Global(R) Artificial Intelligence ETF | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 18.62% | 55.90% | (39.56%) | 9.30% | ||||||