| Document And Entity Information | Jul. 13, 2021 |
| Document Information [Line Items] | |
| Entity, Registrant Name | LeMaitre Vascular, Inc. |
| Document, Type | 8-K |
| Document, Period End Date | Jul. 13, 2021 |
| Entity, Incorporation, State or Country Code | DE |
| Entity, File Number | 001-33092 |
| Entity, Tax Identification Number | 04-2825458 |
| Entity, Address, Address Line One | 63 Second Avenue |
| Entity, Address, City or Town | Burlington |
| Entity, Address, State or Province | MA |
| Entity, Address, Postal Zip Code | 01803 |
| City Area Code | 781 |
| Local Phone Number | 221-2266 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common |
| Trading Symbol | LMAT |
| Security Exchange Name | NASDAQ |
| Entity, Emerging Growth Company | false |
| Amendment Flag | false |
| Entity, Central Index Key | 0001158895 |
