Income Taxes - Significant Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Deferred tax assets:
Allowance for loan losses	$ 5,173	$ 4,846
Deferred loan fees	2,063
Interest on nonaccrual loans	243	792
Unrealized loss on available-for-sale securities	11
Amortization of intangible assets	60	70
Deferred rent payable	127	120
Depreciation of premises and equipment		79
Net operating losses	3,004	3,990
Charitable contribution carryforward	854	1,366
Compensation and benefits	636	326
Other	171	78
Total gross deferred tax assets	12,342	11,667
Deferred tax liabilities:
Depreciation of premises and equipment	908
Deferred loan fees		475
Unrealized gain on available-for-sale securities		25
Other	38	39
Total gross deferred tax liabilities	946	539
Valuation allowance	5,903	6,472
Net deferred tax assets	$ 5,493	$ 4,656