Loans Held for Investment - Nonaccrual Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Financing Receivable, Nonaccrual [Line Items]
Collateral Dependent Loans , Balance	$ 17,151	$ 30,905
Collateral Dependent Loans, ACL	4,000	1,742
Non-Collateral Dependent Loans, Balance	0	0
Non-Collateral Dependent Loans, ACL	0	0
Total Nonaccrual Loans	17,151	30,905
Nonaccrual Loans with No ACL	13,151	29,163
Investor loans secured by real estate
Financing Receivable, Nonaccrual [Line Items]
Collateral Dependent Loans , Balance	2,071	13,742
Collateral Dependent Loans, ACL	0	0
Non-Collateral Dependent Loans, Balance	0	0
Non-Collateral Dependent Loans, ACL	0	0
Total Nonaccrual Loans	2,071	13,742
Nonaccrual Loans with No ACL	2,071	13,742
Investor loans secured by real estate \| CRE non-owner-occupied
Financing Receivable, Nonaccrual [Line Items]
Collateral Dependent Loans , Balance	1,566	4,429
Collateral Dependent Loans, ACL	0	0
Non-Collateral Dependent Loans, Balance	0	0
Non-Collateral Dependent Loans, ACL	0	0
Total Nonaccrual Loans	1,566	4,429
Nonaccrual Loans with No ACL	1,566	4,429
Investor loans secured by real estate \| Multifamily
Financing Receivable, Nonaccrual [Line Items]
Collateral Dependent Loans , Balance		8,780
Collateral Dependent Loans, ACL		0
Non-Collateral Dependent Loans, Balance		0
Non-Collateral Dependent Loans, ACL		0
Total Nonaccrual Loans		8,780
Nonaccrual Loans with No ACL		8,780
Investor loans secured by real estate \| SBA secured by real estate
Financing Receivable, Nonaccrual [Line Items]
Collateral Dependent Loans , Balance	505	533
Collateral Dependent Loans, ACL	0	0
Non-Collateral Dependent Loans, Balance	0	0
Non-Collateral Dependent Loans, ACL	0	0
Total Nonaccrual Loans	505	533
Nonaccrual Loans with No ACL	505	533
Business loans secured by real estate
Financing Receivable, Nonaccrual [Line Items]
Collateral Dependent Loans , Balance	10,290	12,666
Collateral Dependent Loans, ACL	0	1,742
Non-Collateral Dependent Loans, Balance	0	0
Non-Collateral Dependent Loans, ACL	0	0
Total Nonaccrual Loans	10,290	12,666
Nonaccrual Loans with No ACL	10,290	10,924
Business loans secured by real estate \| SBA secured by real estate
Financing Receivable, Nonaccrual [Line Items]
Collateral Dependent Loans , Balance	1,306	1,191
Collateral Dependent Loans, ACL	0	0
Non-Collateral Dependent Loans, Balance	0	0
Non-Collateral Dependent Loans, ACL	0	0
Total Nonaccrual Loans	1,306	1,191
Nonaccrual Loans with No ACL	1,306	1,191
Business loans secured by real estate \| CRE owner-occupied
Financing Receivable, Nonaccrual [Line Items]
Collateral Dependent Loans , Balance	8,984	11,475
Collateral Dependent Loans, ACL	0	1,742
Non-Collateral Dependent Loans, Balance	0	0
Non-Collateral Dependent Loans, ACL	0	0
Total Nonaccrual Loans	8,984	11,475
Nonaccrual Loans with No ACL	8,984	9,733
Commercial loans
Financing Receivable, Nonaccrual [Line Items]
Collateral Dependent Loans , Balance	4,790	4,497
Collateral Dependent Loans, ACL	4,000	0
Non-Collateral Dependent Loans, Balance	0	0
Non-Collateral Dependent Loans, ACL	0	0
Total Nonaccrual Loans	4,790	4,497
Nonaccrual Loans with No ACL	790	4,497
Commercial loans \| Commercial and industrial
Financing Receivable, Nonaccrual [Line Items]
Collateral Dependent Loans , Balance	4,235	3,908
Collateral Dependent Loans, ACL	4,000	0
Non-Collateral Dependent Loans, Balance	0	0
Non-Collateral Dependent Loans, ACL	0	0
Total Nonaccrual Loans	4,235	3,908
Nonaccrual Loans with No ACL	235	3,908
Commercial loans \| SBA non-real estate secured
Financing Receivable, Nonaccrual [Line Items]
Collateral Dependent Loans , Balance	555	589
Collateral Dependent Loans, ACL	0	0
Non-Collateral Dependent Loans, Balance	0	0
Non-Collateral Dependent Loans, ACL	0	0
Total Nonaccrual Loans	555	589
Nonaccrual Loans with No ACL	$ 555	$ 589

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Amortized cost of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease.

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