| Cover | Sep. 11, 2024 |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Sep. 11, 2024 |
| Entity File Number | 001-40418 |
| Entity Registrant Name | Mountain Crest Acquisition Corp. V |
| Entity Central Index Key | 0001859035 |
| Entity Tax Identification Number | 85-2412613 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 524 Broadway |
| Entity Address, Address Line Two | 11th Floor |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10012 |
| City Area Code | (646) |
| Local Phone Number | 493-6558 |
| 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 [Member] | |
| Title of 12(b) Security | Common Stock |
| Trading Symbol | MCAG |
| Security Exchange Name | NASDAQ |
| Rights [Member] | |
| Title of 12(b) Security | Rights |
| Trading Symbol | MCAGR |
| Security Exchange Name | NASDAQ |
| Units | |
| Title of 12(b) Security | Units |
| Trading Symbol | MCAGU |
| Security Exchange Name | NASDAQ |
