| Document and Entity Information | May 09, 2022 |
| Cover [Abstract] | |
| Entity Registrant Name | LENSAR, INC. |
| Document Type | 8-K |
| Amendment Flag | false |
| Entity Central Index Key | 0001320350 |
| Document Period End Date | May 9, 2022 |
| Entity Emerging Growth Company | true |
| Entity File Number | 001-39473 |
| Entity Tax Identification Number | 32-0125724 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 2800 Discovery Drive |
| Entity Address, City or Town | Orlando |
| Entity Address, State or Province | FL |
| Entity Address, Postal Zip Code | 32826 |
| City Area Code | 888 |
| Local Phone Number | 536-7271 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Ex Transition Period | false |
| Title of 12(b) Security | Common stock, par value $0.01 per share |
| Trading Symbol | LNSR |
| Security Exchange Name | NASDAQ |
