S000001249 [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 |
|
| ARIZONA TAX-EXEMPT FUND | ARIZONA TAX-EXEMPT FUND | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 3.29% | 1.70% | 5.43% | (9.09%) | 0.42% | 4.06% | 6.66% | 1.12% | 4.77% | 0.20% |