| Document And Entity Information | Oct. 28, 2024 |
| Document Information [Line Items] | |
| Entity, Registrant Name | Windtree Therapeutics, Inc. |
| Document, Type | 8-K |
| Document, Period End Date | Oct. 28, 2024 |
| Entity, Incorporation, State or Country Code | DE |
| Entity, File Number | 001-39290 |
| Entity, Tax Identification Number | 94-3171943 |
| Entity, Address, Address Line One | 2600 Kelly Road, Suite 100 |
| Entity, Address, City or Town | Warrington |
| Entity, Address, State or Province | PA |
| Entity, Address, Postal Zip Code | 18976 |
| City Area Code | 215 |
| Local Phone Number | 488-9300 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock |
| Trading Symbol | WINT |
| Security Exchange Name | NASDAQ |
| Entity, Emerging Growth Company | false |
| Amendment Flag | false |
| Entity, Central Index Key | 0000946486 |
