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Borrowings - Schedule of Long-Term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Federal Home Loan Bank, Advance, Maturity, Year Two	$ 80,000
Federal Home Loan Bank, Advance, Maturity, Year Three	90,000	$ 80,000
Federal Home Loan Bank, Advance, Maturity, Year Four	35,000	60,000
Federal Home Loan Bank, Advance, Maturity, Year Five	30,000	35,000
Federal Home Loan Bank, Advance, Maturity, Year Six		0
Long-term debt outstanding	255,302	195,292
Subordinated debt
Debt Instrument [Line Items]
Long-term debt outstanding	15,000	15,000
Trust preferred subordinated debt, FCBI | Subordinated debt
Debt Instrument [Line Items]
Long-term debt outstanding	$ 5,302	$ 5,292

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