| Document And Entity Information | Jan. 21, 2025 |
| Document Information [Line Items] | |
| Entity, Registrant Name | Pulse Biosciences, Inc. |
| Document, Type | 8-K |
| Document, Period End Date | Jan. 21, 2025 |
| Entity, Incorporation, State or Country Code | DE |
| Entity, File Number | 001-37744 |
| Entity, Tax Identification Number | 46-5696597 |
| Entity, Address, Address Line One | 601 Brickell Key Drive |
| Entity, Address, Address Line Two | Suite 1080 |
| Entity, Address, City or Town | Miami |
| Entity, Address, State or Province | FL |
| Entity, Address, Postal Zip Code | 33131 |
| City Area Code | 510 |
| Local Phone Number | 906-4600 |
| 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 | PLSE |
| Security Exchange Name | NASDAQ |
| Entity, Emerging Growth Company | false |
| Amendment Flag | false |
| Entity, Central Index Key | 0001625101 |
