Loans - Summary of activity in allowance for loan losses by class (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Allowance for loan losses:
Beginning balance			$ 9,076	$ 11,402
Provision (credit) for loan losses	$ 650	$ 3,750	2,140	6,400
Recoveries	0	0	19
Loans charged-off	(36)	(9,102)	(350)	(9,137)
Total ending allowance balance	10,885	8,665	10,885	8,665
Real Estate \| 1 - 4 Family Residential
Allowance for loan losses:
Beginning balance			285	342
Provision (credit) for loan losses	(15)	(3)	(47)	(33)
Recoveries	0	0
Loans charged-off	0	0
Total ending allowance balance	238	309	238	309
Real Estate \| Multifamily
Allowance for loan losses:
Beginning balance			1,789	1,278
Provision (credit) for loan losses	11	274	299	414
Recoveries	0	0	17
Loans charged-off	0	0	(178)
Total ending allowance balance	1,927	1,692	1,927	1,692
Real Estate \| Commercial Real Estate
Allowance for loan losses:
Beginning balance			552	597
Provision (credit) for loan losses	35	(4)	385	2
Recoveries	0	0
Loans charged-off	0	0
Total ending allowance balance	937	599	937	599
Real Estate \| Construction
Allowance for loan losses:
Recoveries	0	0
Loans charged-off	0	0
Commercial Segment
Allowance for loan losses:
Beginning balance			6,319	5,003
Provision (credit) for loan losses	418	385	1,206	929
Recoveries	0	0	2
Loans charged-off	0	0	(64)
Total ending allowance balance	7,463	5,932	7,463	5,932
Consumer
Allowance for loan losses:
Beginning balance			131	4,182
Provision (credit) for loan losses	201	3,098	297	5,088
Recoveries	0	0
Loans charged-off	(36)	(9,102)	(108)	(9,137)
Total ending allowance balance	$ 320	$ 133	$ 320	$ 133

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount, after recoveries, of loans and leases that have been written-off.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

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Amount of expense related to estimated loss from loan and lease transactions.

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