Government Contracts Revenue (Details) $ in Thousands	3 Months Ended
Mar. 31, 2023 USD ($) contract	Mar. 31, 2022 USD ($)
Government Contracts Revenue
Number of in process contracts \| contract	3
Aggregate contract value	$ 46,300
Contract value	18,600
Remaining contractual value	27,700
Government contracts revenue	2,470	$ 0
Performance obligation	0
Defense Threat Reduction Agency
Government Contracts Revenue
Remaining contractual value	27,600
Government contracts revenue	$ 2,400

Amount, including 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