Ultra-Short Municipal Income ETF Average Annual Total Returns |
12 Months Ended | 60 Months Ended | 86 Months Ended | 87 Months Ended | 120 Months Ended | |
|---|---|---|---|---|---|---|
Feb. 28, 2026 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| BLOOMBERG US MUNICIPAL INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] | ||||||
| Prospectus [Line Items] | ||||||
| Average Annual Return, Percent | 4.25% | 0.80% | 2.60% | 2.63% | 2.34% | |
| BLOOMBERG 1 YEAR MUNICIPAL BOND INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] | ||||||
| Prospectus [Line Items] | ||||||
| Average Annual Return, Percent | 3.47% | 1.73% | 1.89% | |||
| ETF | ||||||
| Prospectus [Line Items] | ||||||
| Average Annual Return, Percent | 3.31% | 2.11% | 2.14% | |||
| Performance Inception Date | Oct. 16, 2018 | |||||
| ETF | After Taxes on Distributions | ||||||
| Prospectus [Line Items] | ||||||
| Average Annual Return, Percent | 3.31% | 2.10% | 2.13% | |||
| ETF | After Taxes on Distributions and Sales | ||||||
| Prospectus [Line Items] | ||||||
| Average Annual Return, Percent | 3.14% | 2.11% | 2.08% |