Loans - Impaired Loans with Associated Allowance (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Unpaid principal balance
With no related allowance	$ 6,646	$ 10,386
With an allowance	6,385	6,566
Total individually evaluated impaired loans	13,031	16,952
Recorded investment
With no related allowance	6,545	10,180
With an allowance	5,206	5,886
Total individually evaluated impaired loans	11,751	16,066
Specific reserves	2,823	4,107
SBA loans held for investment
Unpaid principal balance
With no related allowance	606	1,799
With an allowance	35	434
Total individually evaluated impaired loans	641	2,233
Recorded investment
With no related allowance	506	1,698
With an allowance	4	404
Total individually evaluated impaired loans	510	2,102
Specific reserves	4	324
Commercial loans
Unpaid principal balance
With no related allowance	1,564	1,462
With an allowance	3,805	4,890
Total individually evaluated impaired loans	5,369	6,352
Recorded investment
With no related allowance	1,563	1,462
With an allowance	2,657	4,240
Total individually evaluated impaired loans	4,220	5,702
Specific reserves	2,615	3,682
Commercial loans \| Commercial real estate
Unpaid principal balance
With no related allowance	1,493	1,462
With an allowance	973	1,730
Total individually evaluated impaired loans	2,466	3,192
Recorded investment
With no related allowance	1,493	1,462
With an allowance	126	1,080
Total individually evaluated impaired loans	1,619	2,542
Specific reserves	125	576
Commercial loans \| Consumer other
Unpaid principal balance
With no related allowance	71
With an allowance	2,832	3,160
Total individually evaluated impaired loans	2,903	3,160
Recorded investment
With no related allowance	70
With an allowance	2,531	3,160
Total individually evaluated impaired loans	2,601	3,160
Specific reserves	2,490	3,106
Residential mortgage loans
Unpaid principal balance
With no related allowance	1,630	4,080
With an allowance	1,632	1,242
Total individually evaluated impaired loans	3,262	5,322
Recorded investment
With no related allowance	1,630	3,975
With an allowance	1,632	1,242
Total individually evaluated impaired loans	3,262	5,217
Specific reserves	80	101
Consumer loans
Unpaid principal balance
With no related allowance	2,636
With an allowance	486
Total individually evaluated impaired loans	3,122
Recorded investment
With no related allowance	2,636
With an allowance	486
Total individually evaluated impaired loans	3,122
Specific reserves	68
Consumer loans \| Home equity
Unpaid principal balance
With no related allowance	210	1,295
With an allowance	427
Total individually evaluated impaired loans	637	1,295
Recorded investment
With no related allowance	210	1,295
With an allowance	427
Total individually evaluated impaired loans	637	1,295
Specific reserves	56
Residential construction loans
Unpaid principal balance
With no related allowance		1,750
Total individually evaluated impaired loans		1,750
Recorded investment
With no related allowance		1,750
Total individually evaluated impaired loans		1,750
Collateral Pledged \| Small Business Administration
Recorded investment
Financing receivable, nonaccrual status	$ 59	$ 371

Amount of financing receivable on nonaccrual status.

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