S000048642 [Member] 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 |
|
| Sit Small Cap Dividend Growth Fund | Sit Small Cap Dividend Growth Fund - Class I | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 12.92% | 15.48% | 15.49% | (17.07%) | 23.58% | 16.20% | 27.11% | (17.07%) | 13.69% | 20.59% |