Segment, Customer Concentration and Geographical Information - Company Revenue in Different Geographic Locations (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Revenue from External Customer [Line Items]
Total revenues	$ 12,735	$ 11,381
Americas [Member] \| Reportable Geographical Components [Member]
Revenue from External Customer [Line Items]
Total revenues	12,193	10,144
EMEA [Member] \| Reportable Geographical Components [Member]
Revenue from External Customer [Line Items]
Total revenues	$ 542	$ 1,237

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details