| Document And Entity Information | May 15, 2024 |
| Document Information [Line Items] | |
| Entity, Registrant Name | Crawford United Corporation |
| Document, Type | 8-K |
| Document, Period End Date | May 15, 2024 |
| Entity, Incorporation, State or Country Code | OH |
| Entity, File Number | 000-00147 |
| Entity, Tax Identification Number | 34-0288470 |
| Entity, Address, Address Line One | 10514 Dupont Avenue |
| Entity, Address, City or Town | Cleveland |
| Entity, Address, State or Province | OH |
| Entity, Address, Postal Zip Code | 44108 |
| City Area Code | 216 |
| Local Phone Number | 243-2614 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity, Emerging Growth Company | false |
| Amendment Flag | false |
| Entity, Central Index Key | 0000047307 |
