Property, plant and equipment, net (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 4,661	$ 1,555
Less: accumulated depreciation and amortization of software	(1,229)	(805)
Property, plant and equipment, net	3,432	750
Office and computer equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	430	356
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	113	113
Internally developed software
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	4,050	1,020
Other software
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 68	$ 66