S000003464 [Member] Expense Example - Sit Small Cap Growth Fund - Sit Small Cap Growth Fund |
Jun. 30, 2026
USD ($)
|
|---|---|
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | $ 154 |
| Expense Example, with Redemption, 3 Years | 477 |
| Expense Example, with Redemption, 5 Years | 824 |
| Expense Example, with Redemption, 10 Years | $ 1,801 |