Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 24,994	$ 21,954
Less accumulated depreciation	(13,834)	(12,178)
Property and equipment, net	$ 11,160	9,776
Minimum
Property, Plant and Equipment [Line Items]
Property and equipment useful life	3 years
Maximum
Property, Plant and Equipment [Line Items]
Property and equipment useful life	25 years
Land
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,413	1,413
Office buildings and improvements (25 years)
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 4,621	4,511
Property and equipment useful life	25 years
Furniture, fixtures and equipment (3 to 10 years)
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 17,902	14,982
Furniture, fixtures and equipment (3 to 10 years) | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment useful life	3 years
Furniture, fixtures and equipment (3 to 10 years) | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment useful life	10 years
Automobiles (3 years)
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,058	$ 1,048
Property and equipment useful life	3 years