Loans and Allowance for Credit Losses on Loans - Schedule of Activity in Allowance for Credit Losses on Loans by Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Analysis of allowance for loan losses
Beginning balance	$ 20,814	$ 16,672	$ 19,241	$ 16,123
Impact of CECL adoption			1,924
(Reversal of) provision for credit losses	0	996	(258)	1,541
Charge-offs	(20)	(18)	(136)	(32)
Recoveries	8	52	31	70
Ending balance	20,802	17,702	20,802	17,702
(Reversal of) provision for credit losses			338	(1,337)
Uncollectible Accrued Interest Receivable
Analysis of allowance for loan losses
(Reversal of) provision for credit losses				205
Commercial Real Estate
Analysis of allowance for loan losses
Beginning balance	6,784	6,480	6,951	8,150
Impact of CECL adoption			875
(Reversal of) provision for credit losses	0	1,263	(951)	(407)
Charge-offs	0	0	(91)	0
Recoveries	0	0	0	0
Ending balance	6,784	7,743	6,784	7,743
SBA—real estate
Analysis of allowance for loan losses
Beginning balance	1,218	1,750	1,607	2,022
Impact of CECL adoption			(238)
(Reversal of) provision for credit losses	0	43	(140)	(215)
Charge-offs	0	0	(11)	(14)
Recoveries	0	7	0	7
Ending balance	1,218	1,800	1,218	1,800
SBA—non-real estate
Analysis of allowance for loan losses
Beginning balance	67	169	207	199
Impact of CECL adoption			(142)
(Reversal of) provision for credit losses	0	(61)	(7)	(108)
Charge-offs	(20)	(18)	(34)	(18)
Recoveries	8	45	31	62
Ending balance	55	135	55	135
C&I
Analysis of allowance for loan losses
Beginning balance	1,270	3,492	1,643	2,848
Impact of CECL adoption			(320)
(Reversal of) provision for credit losses	0	(1,390)	(53)	(746)
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending balance	1,270	2,102	1,270	2,102
Home mortgage
Analysis of allowance for loan losses
Beginning balance	11,472	4,768	8,826	2,891
Impact of CECL adoption			1,753
(Reversal of) provision for credit losses	0	1,145	893	3,022
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending balance	11,472	5,913	11,472	5,913
Consumer
Analysis of allowance for loan losses
Beginning balance	3	13	7	13
Impact of CECL adoption			(4)
(Reversal of) provision for credit losses	0	(4)	0	(5)
Charge-offs	0	0	0	0
Recoveries	0	0	0	1
Ending balance	$ 3	$ 9	$ 3	$ 9

Financing Receivable Excluding Accrued Interest Credit Loss Impact of CECL Adoption

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- Definition

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
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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, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
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Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-6

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Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. Excludes net investment in lease.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

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- Definition

Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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