| Document And Entity Information | Jan. 23, 2023 |
| Cover [Abstract] | |
| Document Type | 8-K/A |
| Amendment Flag | true |
| Document Period End Date | Jan. 23, 2023 |
| Entity Registrant Name | NEPTUNE WELLNESS SOLUTIONS INC. |
| Entity Central Index Key | 0001401395 |
| Entity Emerging Growth Company | false |
| Securities Act File Number | 001-33526 |
| Entity Incorporation, State or Country Code | A8 |
| Entity Tax Identification Number | 00-0000000 |
| Entity Address, Address Line One | 545 Promenade du Centropolis |
| Entity Address, Address Line Two | Suite 100 |
| Entity Address, City or Town | Laval |
| Entity Address, State or Province | QC |
| Entity Address, Country | CA |
| Entity Address, Postal Zip Code | H7T 0A3 |
| City Area Code | 450 |
| Local Phone Number | 687-2262 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Shares, no par value per share |
| Trading Symbol | NEPT |
| Security Exchange Name | NASDAQ |
| Amendment Description | This Current Report on Form 8-K/A amends Neptune Wellness Solutions Inc.'s (the “Company”) Current Report on Form 8-K filed with the Securities and Exchange Commission (the “SEC”) on January 26, 2023 (the “Initial Form 8-K”). This Form 8-K/A is being filed to disclose the execution of an Amendment to the Invoice Purchase and Security Agreement (the "Amendment"), dated as of April 21, 2023, by and between Sprout Foods, Inc. ("Sprout") and Alterna Capital Solutions LLC (the "Lender"), and a related Inventory Finance Rider (the "Rider"), dated as of April 21, 2023, by and between Sprout and the Lender. |
