Shareholder Report, Average Annual Return (Details) |
12 Months Ended | 60 Months Ended | 120 Months Ended |
|---|---|---|---|
May 31, 2026 |
May 31, 2026 |
May 31, 2026 |
|
| C000000110 [Member] | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | BNY Mellon Intermediate Municipal Bond Fund, Inc. | ||
| Average Annual Return, Percent | 6.29% | 0.91% | 1.90% |
| Bloomberg Municipal Bond 7 Year Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg Municipal Bond: 7 Year Index (6-8) | ||
| Average Annual Return, Percent | 4.91% | 1.07% | 2.07% |
| Bloomberg U S Municipal Bond Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg U.S. Municipal Bond Index (broad-based index) | ||
| Average Annual Return, Percent | 6.67% | 0.92% | 2.21% |