| Cover | Mar. 02, 2022 |
| Cover [Abstract] | |
| Entity Registrant Name | PLANET 13 HOLDINGS INC. |
| Entity Central Index Key | 0001813452 |
| Document Type | 8-K |
| Amendment Flag | false |
| Entity Emerging Growth Company | true |
| Document Period End Date | Mar. 2, 2022 |
| Entity Ex Transition Period | false |
| Entity File Number | 000-56374 |
| Entity Tax Identification Number | 83-2787199 |
| Entity Address Address Line 1 | 2548 West Desert Inn Road |
| Entity Address Address Line 2 | Suite 100 |
| Entity Address City Or Town | Las Vegas |
| Entity Address State Or Province | NV |
| Entity Address Postal Zip Code | 89109 |
| City Area Code | 702 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Local Phone Number | 206-1313 |
