Income Taxes - Net Deferred Tax Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets [Abstract]
Allowance for loan losses	$ 1,443	$ 1,098
Interest on nonaccrual loans	71	40
Accrued vacation	98	76
SERP obligation	583	479
OREO	219	219
Accumulated depreciation	139	97
Restricted stock	64	108
Other	327	254
Total	2,944	2,371
Deferred tax liabilities [Abstract]
Securities available for sale	703	344
Other	20	11
Total	723	355
Net deferred tax assets	$ 2,221	$ 2,016