Income Taxes - Summary of Net Deferred Tax Assets Included in Statement of Financial Position (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets:
Pre-opening expense		$ 7
Organizational costs	$ 25	27
Allowance for loan losses	4,717	2,971
Loans held for sale	695	52
Stock-based compensation	515	464
Accrued compensation	181	138
Lease liability	2,492	2,994
State taxes	586	456
Nonaccrual loan interest income	7	27
Other	23	24
Total deferred tax assets	9,241	7,160
Deferred tax liabilities:
Loan origination costs	(1,110)	(752)
Depreciation	(487)	(663)
Right of use asset	(2,006)	(2,441)
Net unrealized gain on securities available for sale	(352)	(79)
Other	(44)	(36)
Total deferred tax liabilities	(3,999)	(3,971)
Net deferred tax asset	$ 5,242	$ 3,189