| Cover | Jun. 29, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jun. 29, 2022 |
| Entity File Number | 000-54717 |
| Entity Registrant Name | BIONIK LABORATORIES CORP. |
| Entity Central Index Key | 0001508381 |
| Entity Tax Identification Number | 27-1340346 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 80 Coolidge Hill Road |
| Entity Address, City or Town | Watertown |
| Entity Address, State or Province | MA |
| Entity Address, Postal Zip Code | 02472 |
| City Area Code | 617 |
| Local Phone Number | 926-4800 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
