Segment, Customer Concentration and Geographical Information - Company Revenue in Different Geographic Locations (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenue from External Customer [Line Items]
Total revenues	$ 10,338	$ 12,674	$ 21,268	$ 25,409
Americas | Geographical components
Revenue from External Customer [Line Items]
Total revenues	10,082	12,222	20,593	24,407
EMEA | Geographical components
Revenue from External Customer [Line Items]
Total revenues	$ 256	$ 452	$ 675	$ 1,002