v3.26.1
Shareholder Fees
Dec. 31, 2025
USD ($)
Guinness Atkinson Alternative Energy Fund | Guinness Atkinson Alternative Energy Fund  
Prospectus [Line Items]  
Shareholder Fee, Other $ 0 [1]
Guinness Atkinson Asia Focus Fund | Guinness Atkinson Asia Focus Fund  
Prospectus [Line Items]  
Redemption Fee (as a percentage of Amount Redeemed) (2.00%) [2]
Guinness Atkinson China & Hong Kong Fund | Guinness Atkinson China & Hong Kong Fund  
Prospectus [Line Items]  
Redemption Fee (as a percentage of Amount Redeemed) (2.00%) [3]
Guinness Atkinson Global Energy Fund | Guinness Atkinson Global Energy Fund  
Prospectus [Line Items]  
Shareholder Fee, Other $ 0 [4]
Guinness Atkinson Global Innovators Fund | Guinness Atkinson Global Innovators Fund - Investor Class  
Prospectus [Line Items]  
Shareholder Fee, Other 0.00 [5]
Guinness Atkinson Global Innovators Fund | Guinness Atkinson Global Innovators Fund - Institutional Class  
Prospectus [Line Items]  
Shareholder Fee, Other 0.00 [5]
Guinness Atkinson Asia Pacific Dividend Builder ETF | Guinness Atkinson Asia Pacific Dividend Builder ETF  
Prospectus [Line Items]  
Shareholder Fee, Other 0
Guinness Atkinson Dividend Builder ETF | Guinness Atkinson Dividend Builder ETF  
Prospectus [Line Items]  
Shareholder Fee, Other 0
Guinness Atkinson International Dividend Builder ETF | Guinness Atkinson International Dividend Builder ETF  
Prospectus [Line Items]  
Shareholder Fee, Other 0
Guinness Atkinson Real Assets Income ETF | Guinness Atkinson Real Assets Income ETF  
Prospectus [Line Items]  
Shareholder Fee, Other 0
Guinness Atkinson Smart Transportation & Technology ETF | Guinness Atkinson Smart Transportation & Technology ETF  
Prospectus [Line Items]  
Shareholder Fee, Other 0
Guinness Atkinson Sustainable Energy ETF | Guinness Atkinson Sustainable Energy ETF  
Prospectus [Line Items]  
Shareholder Fee, Other 0
Guinness Atkinson US Dividend Builder ETF | Guinness Atkinson US Dividend Builder ETF  
Prospectus [Line Items]  
Shareholder Fee, Other $ 0
[1] The Fund charges a $15 fee for each payment of redemption proceeds by wire transfer.
[2] The Fund charges a $15 fee for each payment of redemption proceeds by wire transfer.
[3] The Fund charges a $15 fee for each payment of redemption proceeds by wire transfer.
[4] The Fund charges a $15 fee for each payment of redemption proceeds by wire transfer.
[5] The Fund charges a $15 fee for each payment of redemption proceeds by wire transfer.