Load [Member] Annual Fund Operating Expenses - North Carolina Tax-Free Income Series - North Carolina Tax-Free Income Series |
Jun. 30, 2026 |
|---|---|
| Prospectus [Line Items] | |
| Management Fees (as a percentage of Assets) | 0.50% |
| Distribution and Service (12b-1) Fees | 0.00% |
| Other Expenses (as a percentage of Assets): | 0.25% |
| Expenses (as a percentage of Assets) | 0.75% |