Loans and Allowance for Loan Losses - Composition of Loan Portfolio (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Loans And Leases Receivable Disclosure [Line Items]
Gross loans receivable	$ 1,245,866	$ 1,099,736
Allowance for loan losses	(14,687)	(15,352)
Loans receivable, net	1,231,179	1,084,384
Real Estate \| Commercial Real Estate
Loans And Leases Receivable Disclosure [Line Items]
Gross loans receivable	684,082	651,684
Real Estate \| SBA Loans—Real Estate
Loans And Leases Receivable Disclosure [Line Items]
Gross loans receivable	217,356	136,224
SBA Loans—Non-Real Estate
Loans And Leases Receivable Disclosure [Line Items]
Gross loans receivable	121,395	75,151
Commercial and Industrial
Loans And Leases Receivable Disclosure [Line Items]
Gross loans receivable	102,562	107,307
Home Mortgage
Loans And Leases Receivable Disclosure [Line Items]
Gross loans receivable	119,319	128,212
Consumer
Loans And Leases Receivable Disclosure [Line Items]
Gross loans receivable	$ 1,152	$ 1,158

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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