Loans Held for Investment - Schedule of Loans Held for Investment Contractually Repricing (Details) $ in Thousands	Sep. 30, 2023 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Fixed Rate	$ 113,586
Total loans held for investment, net	1,072,170
Within One Year [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	258,616
After One Year Through 3 Years [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	192,245
After 3 Years Through 5 Years [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	224,141
After 5 Years Through 10 Years [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	281,880
Mortgage loans \| Single-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Fixed Rate	112,094
Mortgage loans \| Single-family \| Within One Year [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	55,866
Mortgage loans \| Single-family \| After One Year Through 3 Years [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	25,584
Mortgage loans \| Single-family \| After 3 Years Through 5 Years [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	78,271
Mortgage loans \| Single-family \| After 5 Years Through 10 Years [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	249,761
Mortgage loans \| Multi Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Fixed Rate	119
Mortgage loans \| Multi Family \| Within One Year [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	160,821
Mortgage loans \| Multi Family \| After One Year Through 3 Years [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	153,088
Mortgage loans \| Multi Family \| After 3 Years Through 5 Years [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	111,204
Mortgage loans \| Multi Family \| After 5 Years Through 10 Years [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	32,119
Mortgage loans \| Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Fixed Rate	1,269
Mortgage loans \| Commercial real estate \| Within One Year [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	38,446
Mortgage loans \| Commercial real estate \| After One Year Through 3 Years [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	13,573
Mortgage loans \| Commercial real estate \| After 3 Years Through 5 Years [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	34,666
Mortgage loans \| Construction \| Within One Year [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	2,100
Mortgage loans \| Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Fixed Rate	104
Commercial business loans \| Within One Year [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	1,321
Consumer loans \| Within One Year [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, Adjustable Rate	$ 62

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- Definition

Amortized cost excluding accrued interest, after allowance for credit loss, of 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
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479344/326-20-45-1

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- Definition

Amount of loan with fixed rate of interest.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
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