Property and Equipment - Schedule of Property and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 26,429	$ 24,361
Accumulated depreciation and amortization	(19,136)	(18,474)
Property and equipment, net	7,293	5,887
Land and Office Building [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	10,063	9,039
Furniture and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	7,076	6,202
Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	8,561	8,584
Automobiles [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	73	74
Finance Lease Right-of-use Assets [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 656	$ 462