v3.25.2
Cover
Aug. 21, 2025
Document Type 8-K
Amendment Flag false
Document Period End Date Aug. 21, 2025
Entity File Number 001-42138
Entity Registrant Name FLAG SHIP ACQUISITION CORPORATION
Entity Central Index Key 0001850059
Entity Tax Identification Number 00-0000000
Entity Incorporation, State or Country Code E9
Entity Address, Address Line One 26 Broadway
Entity Address, Address Line Two Suite 934
Entity Address, City or Town New York
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10004
City Area Code (646)
Local Phone Number 362-0256
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, $0.001 par value, and one right  
Title of 12(b) Security Units, each consisting of one Ordinary Share, $0.001 par value, and one right
Trading Symbol FSHPU
Security Exchange Name NASDAQ
Ordinary Shares, $0.001 par value  
Title of 12(b) Security Ordinary Shares, $0.001 par value
Trading Symbol FSHP
Security Exchange Name NASDAQ
Rights to receive one-tenth (1/10  
Title of 12(b) Security Rights to receive one-tenth (1/10
Trading Symbol FSHPR
Security Exchange Name NASDAQ