Adoption of New Accounting Standard - Summary of Impact to the Consolidated Balance Sheet as the Result of Adopting ASC 326 (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Mar. 31, 2023	Jan. 01, 2023	Dec. 31, 2022		Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
Assets:
Loans held for investment, net of deferred fees and costs	$ 2,451,697			$ 2,399,092	[1]
Allowance for credit losses	(43,067)	$ (29,974)		(22,939)	[1]	$ (17,242)	$ (12,013)	$ (12,121)
Deferred tax asset, net	11,051			9,182	[1]
Liabilities:
Reserve for unfunded commitments			$ 3,700	1,812
Stockholders' Equity:
Retained earnings	80,287			108,262	[1]
January 1, 2023 Post-ASC 326 Adoption [Member]
Assets:
Loans held for investment, net of deferred fees and costs			2,399,757
Allowance for credit losses	$ 4,000		(26,961)
Deferred tax asset, net			10,757
Liabilities:
Reserve for unfunded commitments			5,504
Stockholders' Equity:
Retained earnings			$ 102,788
Impact of ASC 326 Adoption [Member]
Assets:
Loans held for investment, net of deferred fees and costs				665
Allowance for credit losses				(4,022)
Deferred tax asset, net				1,575
Liabilities:
Reserve for unfunded commitments				3,692
Stockholders' Equity:
Retained earnings				$ (5,474)

[1] Derived from audited December 31, 2022 Consolidated Financial Statements.