| Cover | Sep. 20, 2021 |
| Affiliate, Collateralized Security [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Sep. 20, 2021 |
| Entity File Number | 001-39802 |
| Entity Registrant Name | CLARUS THERAPEUTICS HOLDINGS, INC. |
| Entity Central Index Key | 0001817944 |
| Entity Tax Identification Number | 85-1231852 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 555 Skokie Boulevard |
| Entity Address, Address Line Two | Suite 340 |
| Entity Address, City or Town | Northbrook |
| Entity Address, State or Province | IL |
| Entity Address, Postal Zip Code | 60062 |
| City Area Code | (847) |
| Local Phone Number | 562-4300 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Common stock, par value $0.0001 per share | |
| Affiliate, Collateralized Security [Line Items] | |
| Title of 12(b) Security | Common stock, par value $0.0001 per share |
| Trading Symbol | CRXT |
| Security Exchange Name | NASDAQ |
| Warrants to purchase one share of common stock at an exercise price of $11.50 | |
| Affiliate, Collateralized Security [Line Items] | |
| Title of 12(b) Security | Warrants to purchase one share of common stock at an exercise price of $11.50 |
| Trading Symbol | CRXTW |
| Security Exchange Name | NASDAQ |
