v3.22.4
Cover
Feb. 01, 2023
Document Information [Line Items]  
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Entity Central Index Key 0001408534
Document Type 8-K
Document Period End Date Feb. 01, 2023
Entity Registrant Name FIRST GUARANTY BANCSHARES, INC.
Entity Incorporation, State or Country Code LA
Entity File Number 001-37621
Entity Tax Identification Number 26-0513559
Entity Address, Address Line One 400 East Thomas Street
Entity Address, City or Town Hammond
Entity Address, State or Province LA
Entity Address, Postal Zip Code 70401
City Area Code 345-7685
City Area Code (985)
Written Communications false
Soliciting Material false
Amendment Flag false
Common Stock  
Document Information [Line Items]  
Title of 12(b) Security Common Stock, $1 par value
Trading Symbol FGBI
Security Exchange Name NASDAQ
Noncumulative Preferred Stock  
Document Information [Line Items]  
Title of 12(b) Security Depositary Shares (each representing a 1/40th interest in a share of 6.75% Series A Fixed-Rate Non-Cumulative perpetual preferred stock)
Trading Symbol FGBIP
Security Exchange Name NASDAQ