v3.26.1
Cover
Apr. 29, 2026
Document Type 8-K
Amendment Flag false
Document Period End Date Apr. 29, 2026
Current Fiscal Year End Date --12-31
Entity File Number 001-43258
Entity Registrant Name Mountain Crest Acquisition 6 Corp
Entity Central Index Key 0002109876
Entity Tax Identification Number 00-0000000
Entity Incorporation, State or Country Code D8
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 852
Local Phone Number 9828 3397
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
Units, each consisting of one ordinary share and one right to receive one-fourth (1/4) of one ordinary share  
Title of 12(b) Security Units, each consisting of one ordinary share and one right to receive one-fourth (1/4) of one ordinary share
Trading Symbol MCAHU
Security Exchange Name NASDAQ
Ordinary shares, par value $0.0001 per share  
Title of 12(b) Security Ordinary shares, par value $0.0001 per share
Trading Symbol MCAH
Security Exchange Name NASDAQ
Rights, each right entitling the holder to receive one-fourth (1/4) of one ordinary share  
Title of 12(b) Security Rights, each right entitling the holder to receive one-fourth (1/4) of one ordinary share
Trading Symbol MCAHR
Security Exchange Name NASDAQ