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Borrowings (Details) - USD ($) $ in Thousands		3 Months Ended
	Mar. 30, 2021	Sep. 30, 2022	Sep. 15, 2022	Dec. 31, 2021	Sep. 30, 2021
Debt Instrument [Line Items]
Long-term debt outstanding		$ 24,050		$ 34,700	$ 41,700
FHLB Advances
Debt Instrument [Line Items]
Long-term debt outstanding		0		11,000
Subordinated debt
Debt Instrument [Line Items]
Long-term debt outstanding		15,000		15,000
Interest rate percentage	4.00%
Subordinated debt issued	$ 15,000
Debt Instrument, issuance price, percentage	100.00%
Subordinated debt | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Basis spread on prime rate, percentage	3.29%
Loan payable variable rate, FCBI | Unsecured promissory note
Debt Instrument [Line Items]
Long-term debt outstanding		$ 2,700		2,700
Interest rate percentage		3.25%
Loan payable to local bank, 3.25% | Loan payable to local bank
Debt Instrument [Line Items]
Long-term debt outstanding		$ 350		0
Interest rate percentage		6.25%
Trust preferred subordinated debt, FCBI | Subordinated debt
Debt Instrument [Line Items]
Long-term debt outstanding		$ 6,000		$ 6,000
Subordinated debt issued		$ 6,000
Trust preferred subordinated debt, FCBI | Subordinated debt | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Interest rate percentage			4.92257%
Basis spread on prime rate, percentage		1.63%

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