| Document And Entity Information | May 04, 2023 |
| Document Information [Line Items] | |
| Entity, Registrant Name | TUCOWS INC. |
| Document, Type | 8-K |
| Document, Period End Date | May 04, 2023 |
| Entity, Incorporation, State or Country Code | PA |
| Entity, File Number | 0-28284 |
| Entity, Tax Identification Number | 23-2707366 |
| Entity, Address, Address Line One | 96 Mowat Avenue |
| Entity, Address, City or Town | Toronto |
| Entity, Address, State or Province | ON |
| Entity, Address, Country | CA |
| Entity, Address, Postal Zip Code | M6K 3M1 |
| City Area Code | 416 |
| Local Phone Number | 535-0123 |
| 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 | TCX |
| Security Exchange Name | NASDAQ |
| Entity, Emerging Growth Company | false |
| Amendment Flag | false |
| Entity, Central Index Key | 0000909494 |
