Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2022
Feb. 02, 2023
Jun. 30, 2022
Document Information      
Document Type 10-K    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2022    
Entity File Number 001-41309    
Entity Registrant Name FG Merger Corp.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 86-2462502    
Entity Address, Address Line One 104 S. Walnut Street, Unit 1A,    
Entity Address, City or Town Itasca,    
Entity Address State Or Province IL    
Entity Address, Postal Zip Code 60143    
City Area Code 708    
Local Phone Number 870-7365    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company true    
Entity Ex Transition Period false    
Entity Shell Company true    
Entity Common Stock, Shares Outstanding   10,157,750  
Entity Public Float     $ 80,497,988
Entity Central Index Key 0001906133    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Amendment Flag false    
Auditor Name Plante & Moran, PLLC    
Auditor Firm ID 166    
Auditor Location Chicago    
Document Information      
Title of 12(b) Security Units    
Trading Symbol FGMCU    
Security Exchange Name NASDAQ    
Common stock      
Document Information      
Title of 12(b) Security Common stock    
Trading Symbol FGMC    
Security Exchange Name NASDAQ    
Document Information      
Title of 12(b) Security Warrants    
Trading Symbol FGMCW    
Security Exchange Name NASDAQ