Cash and Due from Banks	12 Months Ended
Dec. 31, 2025
Cash and Cash Equivalents [Abstract]
Cash and Due from Banks	Cash and Due from Banks Certain reserves are required to be maintained at the Federal Reserve Bank. There was no reserve requirement as of December 31, 2025 and 2024. At December 31, 2025 First Guaranty had four accounts at correspondent banks, excluding the Federal Reserve Bank, that exceeded the FDIC insurable limit of $250,000. These accounts exceeded the insurable limit by $13.3 million. At December 31, 2024 First Guaranty had three accounts at correspondent banks, excluding the Federal Reserve Bank, that exceeded the FDIC insurable limit of $250,000. These accounts exceeded the insurable limit by $10.7 million.

Cash and Due from Banks

12 Months Ended

Dec. 31, 2025

Cash and Cash Equivalents [Abstract]

Certain reserves are required to be maintained at the Federal Reserve Bank. There was no reserve requirement as of December 31, 2025 and 2024. At December 31, 2025 First Guaranty had four accounts at correspondent banks, excluding the Federal Reserve Bank, that exceeded the FDIC insurable limit of $250,000. These accounts exceeded the insurable limit by $13.3 million. At December 31, 2024 First Guaranty had three accounts at correspondent banks, excluding the Federal Reserve Bank, that exceeded the FDIC insurable limit of $250,000. These accounts exceeded the insurable limit by $10.7 million.