Income Taxes - Significant Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Allowance for losses on loans	$ 5,254	$ 4,846
Deferred loan fees	214
Interest on nonaccrual loans	102	792
Unrealized loss on available-for-sale securities	399
Amortization of intangible assets	50	70
Deferred rent payable	152	120
Depreciation of premises and equipment		79
Net operating losses	3,280	3,990
Charitable contribution carryforward	366	1,366
Compensation and benefits	456	326
Other	264	78
Total gross deferred tax assets	10,537	11,667
Deferred tax liabilities:
Depreciation of premises and equipment	1,301
Deferred loan fees		475
Unrealized loss on available-for-sale securities		25
Other	63	39
Total gross deferred tax liabilities	1,364	539
Valuation allowance	5,353	6,472
Net deferred tax assets	$ 3,820	$ 4,656