Fair Value Measurements - Additional information (Details)	9 Months Ended	12 Months Ended
Sep. 30, 2024 USD ($) loan	Dec. 31, 2023 USD ($) loan
Fair Value Measurements
Number of collateral dependent loans \| loan	1	0
Collateral dependent loans	$ 10,000,000.0
Other real estate owned	$ 0	$ 0
Loan servicing rights
Fair Value Measurements
Loans receivable, marginal interest rate	1.00%
Maximum percentage of SBA guaranty	85.00%
Loan servicing portfolio	$ 7,000,000.0
Servicing Asset at Fair Value	$ 104,000
Weighted average discount rate	11.00%
Prepayment percent of loan servicing portfolio	13.00%
Servicing rights valuation allowance	$ 0
Loan servicing rights \| Minimum
Fair Value Measurements
Servicing asset offered	50,000
Loan servicing rights \| Maximum
Fair Value Measurements
Servicing asset offered	$ 2,000,000.0

Amount of collateral dependent loans.

No definition available.

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- Definition

Represents the amount of loan servicing portfolio which is not included in consolidated financial statements.

+ References

No definition available.

+ Details

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- Definition

Represents conditional prepayment percent of loan servicing portfolio.

+ References

No definition available.

+ Details

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- Definition

Weighted average discount rate for loan servicing portfolio.

+ References

No definition available.

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- Definition

Number of collateral dependent loans.

+ References

No definition available.

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- Definition

Represents percentage of guarantee of financing receivables.

+ References

No definition available.

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- Definition

Represents the amount offered by the entity under SBA 7(a).

+ References

No definition available.

+ Details

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- Definition

Amount represents the value of servicing rights valuation allowance.

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 14
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-14

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- Definition

Percentage added to reference rate used to compute variable rate on loan receivable.

+ References

No definition available.

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- Definition

Carrying amount of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This does not include real estate assets taken in settlement of troubled loans through surrender or foreclosure.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
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+ Details

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- Details

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