v3.26.1
Expense Example - Guinness Atkinson Global Innovators Fund
Dec. 31, 2025
USD ($)
Guinness Atkinson Global Innovators Fund - Investor Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 126
Expense Example, with Redemption, 3 Years 393
Expense Example, with Redemption, 5 Years 681
Expense Example, with Redemption, 10 Years 1,500
Guinness Atkinson Global Innovators Fund - Institutional Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 102
Expense Example, with Redemption, 3 Years 318
Expense Example, with Redemption, 5 Years 571
Expense Example, with Redemption, 10 Years $ 1,294