Label	Element	Value
BNY Mellon Intermediate Municipal Bond Fund, Inc.
Risk/Return:	rr_RiskReturnAbstract
Supplement to Prospectus [Text Block]	rr_SupplementToProspectusTextBlock	BNY MELLON INTERMEDIATE MUNICIPAL BOND FUND, INC. Supplement to Current Summary Prospectus and Prospectus
Risk/Return [Heading]	rr_RiskReturnHeading	BNY MELLON INTERMEDIATE MUNICIPAL BOND FUND, INC.
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	Effective on or about January 1, 2024, the following information supersedes and replaces any contrary information contained in the sections "Fees and Expenses" in the fund's summary prospectus and "Fund Summary - Fees and Expenses" in the fund's prospectus:
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Expense Example [Heading]	rr_ExpenseExampleHeading	Example
BNY Mellon Intermediate Municipal Bond Fund, Inc. \| BNY Mellon Intermediate Municipal Bond Fund, Inc.
Risk/Return:	rr_RiskReturnAbstract
Management fees	rr_ManagementFeesOverAssets	0.45%
Shareholder services fees	rr_Component1OtherExpensesOverAssets	0.06%
Miscellaneous other expenses	rr_Component2OtherExpensesOverAssets	0.10%
Total other expenses	rr_OtherExpensesOverAssets	0.16%
Total annual fund operating expenses	rr_ExpensesOverAssets	0.61%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 62
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	195
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	340
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	762
Expense Example, No Redemption, 1 Year	rr_ExpenseExampleNoRedemptionYear01	62
Expense Example, No Redemption, 3 Years	rr_ExpenseExampleNoRedemptionYear03	195
Expense Example, No Redemption, 5 Years	rr_ExpenseExampleNoRedemptionYear05	340
Expense Example, No Redemption, 10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 762

The Fund may subdivide this caption into no more than three subcaptions that identify the largest expense or expenses comprising "Other Expenses," but must include a total of all "Other Expenses." Alternatively, the Fund may include the components of "Other Expenses" in a parenthetical to the caption.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form N-1A
-Section 3
-Subsection instructions
-Paragraph 3
-Subparagraph c
-Clause iii