Revenue - Categories of end customers (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Disaggregation of Revenue [Line Items]
Revenue	$ 33,316	$ 22,199	$ 54,090	$ 51,743
U.S. federal government and agencies \| Revenue Benchmark \| Customer Concentration Risk
Disaggregation of Revenue [Line Items]
Revenue	11,350	13,496	20,595	25,183
International governments \| Revenue Benchmark \| Customer Concentration Risk
Disaggregation of Revenue [Line Items]
Revenue	21,636	7,928	32,340	25,054
Commercial and other \| Revenue Benchmark \| Customer Concentration Risk
Disaggregation of Revenue [Line Items]
Revenue	$ 330	$ 775	$ 1,155	$ 1,506

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

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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