Loans - Schedule of Recorded Investment in Nonaccrual Loans and Loans Past Due Greater Than 90 Days Still Accruing Interest by Class of Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable Recorded Investment Past Due [Line Items]
Nonaccrual	$ 985	$ 1,215
Total	985	1,215
SBA Loans-Non-Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Nonaccrual	56	33
Total	56	33
Commercial And Industrial
Financing Receivable Recorded Investment Past Due [Line Items]
Nonaccrual	330
Total	330
Home Mortgage
Financing Receivable Recorded Investment Past Due [Line Items]
Nonaccrual	599	698
Total	$ 599	698
SBA Loans—Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Nonaccrual		484
Total		$ 484