Revenue - Categories of end customers (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Disaggregation of Revenue [Line Items]
Revenue	$ 106,575	$ 102,093
U.S. federal government and agencies | Revenue Benchmark | Customer Concentration Risk
Disaggregation of Revenue [Line Items]
Revenue	45,778	61,257
International governments | Revenue Benchmark | Customer Concentration Risk
Disaggregation of Revenue [Line Items]
Revenue	57,993	37,970
Commercial and other | Revenue Benchmark | Customer Concentration Risk
Disaggregation of Revenue [Line Items]
Revenue	$ 2,804	$ 2,866