S000010024 [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 |
|
| The Kansas Tax-Free Intermediate Bond Fund | Shares | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 4.43% | 0.55% | 4.05% | (7.27%) | 0.22% | 4.32% | 5.60% | 0.95% | 3.94% | (0.20%) |