v3.25.2
Shareholder Report, Holdings (Details)
Jun. 30, 2025
Guinness Atkinson Alternative Energy Fund | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 47.90%
Guinness Atkinson Alternative Energy Fund | FRANCE  
Holdings [Line Items]  
Percent of Net Asset Value 14.00%
Guinness Atkinson Alternative Energy Fund | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 8.60%
Guinness Atkinson Alternative Energy Fund | SPAIN  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
Guinness Atkinson Alternative Energy Fund | CHINA  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
Guinness Atkinson Alternative Energy Fund | ITALY  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Guinness Atkinson Alternative Energy Fund | NETHERLANDS  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Guinness Atkinson Alternative Energy Fund | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Guinness Atkinson Alternative Energy Fund | IRELAND  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Guinness Atkinson Alternative Energy Fund | SWEDEN  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
Guinness Atkinson Alternative Energy Fund | KOREA, REPUBLIC OF  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
Guinness Atkinson Alternative Energy Fund | DENMARK  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
Guinness Atkinson Alternative Energy Fund | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Guinness Atkinson Alternative Energy Fund | Legrand SA  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
Guinness Atkinson Alternative Energy Fund | Iberdrola SA  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
Guinness Atkinson Alternative Energy Fund | Eaton Corp PLC  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
Guinness Atkinson Alternative Energy Fund | Schneider Electric SE  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
Guinness Atkinson Alternative Energy Fund | Siemens AG  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
Guinness Atkinson Alternative Energy Fund | Trane Technologies PLC  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
Guinness Atkinson Alternative Energy Fund | Hubbell Inc  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
Guinness Atkinson Alternative Energy Fund | Amphenol Corp  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Guinness Atkinson Alternative Energy Fund | Spie SA  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
Guinness Atkinson Alternative Energy Fund | Nextera Energy Inc  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
Guinness Atkinson Asia Focus Fund | Electronic Components - Semiconductor  
Holdings [Line Items]  
Percent of Net Asset Value 11.10%
Guinness Atkinson Asia Focus Fund | Commercial Banks  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
Guinness Atkinson Asia Focus Fund | E-Commerce/Services  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
Guinness Atkinson Asia Focus Fund | Semiconductor Components - Integrated Circuits  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
Guinness Atkinson Asia Focus Fund | Internet Application Software  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Guinness Atkinson Asia Focus Fund | Entertainment Software  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Guinness Atkinson Asia Focus Fund | Medical Products  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
Guinness Atkinson Asia Focus Fund | E-Commerce/Products  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Guinness Atkinson Asia Focus Fund | Electronic Component Miscellaneous  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
Guinness Atkinson Asia Focus Fund | Machinery - Construction & Mining  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
Guinness Atkinson Asia Focus Fund | Metal Processors & Fabricators  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
Guinness Atkinson Asia Focus Fund | Machinery - General Industries  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
Guinness Atkinson Asia Focus Fund | Internet & Direct Marketing Retail  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
Guinness Atkinson Asia Focus Fund | Personal Care Products  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Guinness Atkinson Asia Focus Fund | MRI/Medical Diagnostic Imaging  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Guinness Atkinson Asia Focus Fund | Auto - Cars/Light Trucks  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
Guinness Atkinson Asia Focus Fund | Photo Equipment & Supplies  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
Guinness Atkinson Asia Focus Fund | Food - Dairy Products  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
Guinness Atkinson Asia Focus Fund | Textile - Apparel  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
Guinness Atkinson Asia Focus Fund | Building Products - Cement/Aggregates  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
Guinness Atkinson Asia Focus Fund | Travel Services  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
Guinness Atkinson Asia Focus Fund | Insurance  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
Guinness Atkinson Asia Focus Fund | Rental Auto/Equipment  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
Guinness Atkinson Asia Focus Fund | Pharmaceuticals  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
Guinness Atkinson Asia Focus Fund | Taiwan Semiconductor Manufacturing Co Ltd  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
Guinness Atkinson Asia Focus Fund | Tencent Holdings Ltd  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Guinness Atkinson Asia Focus Fund | NetEase Inc - ADR  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Guinness Atkinson Asia Focus Fund | Samsung Electronics Co Ltd  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
Guinness Atkinson Asia Focus Fund | China Merchants Bank Co Ltd - H Shares  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
Guinness Atkinson Asia Focus Fund | China Medical System Holdings Ltd  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
Guinness Atkinson Asia Focus Fund | DBS Group Holdings  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Guinness Atkinson Asia Focus Fund | Broadcom Inc  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Guinness Atkinson Asia Focus Fund | JD.com Inc  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
Guinness Atkinson Asia Focus Fund | Applied Materials Inc  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
Guinness Atkinson China & Hong Kong Fund | CHINA  
Holdings [Line Items]  
Percent of Net Asset Value 91.90%
Guinness Atkinson China & Hong Kong Fund | HONG KONG  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
Guinness Atkinson China & Hong Kong Fund | Tencent Holdings Ltd  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
Guinness Atkinson China & Hong Kong Fund | NetEase Inc - ADR  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
Guinness Atkinson China & Hong Kong Fund | China Merchants Bank Co Ltd - H Shares  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Guinness Atkinson China & Hong Kong Fund | Sino Biopharmaceutical Ltd  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
Guinness Atkinson China & Hong Kong Fund | Shandong Himile Mechanical Science & Technology Co Ltd  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
Guinness Atkinson China & Hong Kong Fund | AIA Group Ltd  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
Guinness Atkinson China & Hong Kong Fund | Hong Kong Exchanges & CL  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
Guinness Atkinson China & Hong Kong Fund | Geely Automobile Holdings Ltd  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
Guinness Atkinson China & Hong Kong Fund | Shenzhen H&T Intelligent Control Co., Ltd.  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Guinness Atkinson China & Hong Kong Fund | Weichai Power Co Ltd - H Shares  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
Guinness Atkinson Global Energy Fund | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 40.60%
Guinness Atkinson Global Energy Fund | FRANCE  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
Guinness Atkinson Global Energy Fund | SPAIN  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
Guinness Atkinson Global Energy Fund | CHINA  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
Guinness Atkinson Global Energy Fund | ITALY  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Guinness Atkinson Global Energy Fund | NETHERLANDS  
Holdings [Line Items]  
Percent of Net Asset Value 6.10%
Guinness Atkinson Global Energy Fund | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
Guinness Atkinson Global Energy Fund | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 18.70%
Guinness Atkinson Global Energy Fund | PORTUGAL  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
Guinness Atkinson Global Energy Fund | AUSTRIA  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Guinness Atkinson Global Energy Fund | NORWAY  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
Guinness Atkinson Global Energy Fund | Shell PLC  
Holdings [Line Items]  
Percent of Net Asset Value 6.10%
Guinness Atkinson Global Energy Fund | Chevron Corp  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
Guinness Atkinson Global Energy Fund | TotalEnergies SE  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
Guinness Atkinson Global Energy Fund | Exxon Mobil Corp  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
Guinness Atkinson Global Energy Fund | Kinder Morgan Inc  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
Guinness Atkinson Global Energy Fund | Imperial Oil Ltd  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
Guinness Atkinson Global Energy Fund | Valero Energy Corp  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
Guinness Atkinson Global Energy Fund | Suncor Energy Inc  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
Guinness Atkinson Global Energy Fund | BP PLC  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
Guinness Atkinson Global Energy Fund | ConocoPhillips  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
Guinness Atkinson Global Innovators Fund | Investor Class | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 69.20%
Guinness Atkinson Global Innovators Fund | Investor Class | FRANCE  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Guinness Atkinson Global Innovators Fund | Investor Class | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
Guinness Atkinson Global Innovators Fund | Investor Class | CHINA  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
Guinness Atkinson Global Innovators Fund | Investor Class | IRELAND  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
Guinness Atkinson Global Innovators Fund | Investor Class | DENMARK  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
Guinness Atkinson Global Innovators Fund | Investor Class | TAIWAN  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
Guinness Atkinson Global Innovators Fund | Investor Class | Britain  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Guinness Atkinson Global Innovators Fund | Investor Class | SWITZERLAND  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
Guinness Atkinson Global Innovators Fund | Investor Class | Amphenol Corp  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
Guinness Atkinson Global Innovators Fund | Investor Class | Taiwan Semiconductor Manufacturing Co Ltd  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
Guinness Atkinson Global Innovators Fund | Investor Class | Netflix Inc  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
Guinness Atkinson Global Innovators Fund | Investor Class | NVIDIA Corp  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
Guinness Atkinson Global Innovators Fund | Investor Class | ANTA Sports Products Ltd  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
Guinness Atkinson Global Innovators Fund | Investor Class | Meta Platforms Inc. - Class A  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Guinness Atkinson Global Innovators Fund | Investor Class | Intuit Inc  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Guinness Atkinson Global Innovators Fund | Investor Class | Mastercard Inc  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
Guinness Atkinson Global Innovators Fund | Investor Class | KLA-Tencor Corp  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
Guinness Atkinson Global Innovators Fund | Investor Class | Intercontinental Exchange Inc  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Guinness Atkinson Global Innovators Fund | Institutional Class | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 69.20%
Guinness Atkinson Global Innovators Fund | Institutional Class | FRANCE  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Guinness Atkinson Global Innovators Fund | Institutional Class | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
Guinness Atkinson Global Innovators Fund | Institutional Class | CHINA  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
Guinness Atkinson Global Innovators Fund | Institutional Class | IRELAND  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
Guinness Atkinson Global Innovators Fund | Institutional Class | DENMARK  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
Guinness Atkinson Global Innovators Fund | Institutional Class | TAIWAN  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
Guinness Atkinson Global Innovators Fund | Institutional Class | Britain  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Guinness Atkinson Global Innovators Fund | Institutional Class | SWITZERLAND  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
Guinness Atkinson Global Innovators Fund | Institutional Class | Amphenol Corp  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
Guinness Atkinson Global Innovators Fund | Institutional Class | Taiwan Semiconductor Manufacturing Co Ltd  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
Guinness Atkinson Global Innovators Fund | Institutional Class | Netflix Inc  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
Guinness Atkinson Global Innovators Fund | Institutional Class | NVIDIA Corp  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
Guinness Atkinson Global Innovators Fund | Institutional Class | ANTA Sports Products Ltd  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
Guinness Atkinson Global Innovators Fund | Institutional Class | Meta Platforms Inc. - Class A  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Guinness Atkinson Global Innovators Fund | Institutional Class | Intuit Inc  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Guinness Atkinson Global Innovators Fund | Institutional Class | Mastercard Inc  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
Guinness Atkinson Global Innovators Fund | Institutional Class | KLA-Tencor Corp  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
Guinness Atkinson Global Innovators Fund | Institutional Class | Intercontinental Exchange Inc  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%