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Segment, Customer and Geographic Information - Revenue by Geographical Location (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenue, Major Customer [Line Items]
Revenue	$ 201,321	$ 186,797	$ 188,315
Product
Revenue, Major Customer [Line Items]
Revenue	180,270	156,367	162,048
Product | UNITED STATES
Revenue, Major Customer [Line Items]
Revenue	111,073	93,232	101,391
Product | FRANCE
Revenue, Major Customer [Line Items]
Revenue	19,692	18,490	19,327
Product | Other Countries
Revenue, Major Customer [Line Items]
Revenue	49,505	44,645	41,330
Government Contract
Revenue, Major Customer [Line Items]
Revenue	21,051	30,430	26,267
Government Contract | UNITED STATES
Revenue, Major Customer [Line Items]
Revenue	$ 21,051	$ 30,430	$ 26,267

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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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