Business Segment, Geographic, and Concentration Risk Information - Additional Information (Detail) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) Segment	Sep. 30, 2021 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | Segment			3
Total revenue	$ 33,530	$ 31,425	$ 94,188	$ 91,275
Intersegment Eliminations
Segment Reporting Information [Line Items]
Total revenue	(347)	$ (339)	$ (1,901)	$ (1,732)
Segments Deriving Revenue
Segment Reporting Information [Line Items]
Number of reportable segments | Segment			2
Oncology Innovation Platform | Intersegment Eliminations
Segment Reporting Information [Line Items]
Total revenue	$ 300		$ 1,900