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Revenue - Summary of Sales from Contracts with Customers Disaggregated by Categories (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Revenue	$ 6,464	$ 5,337	$ 13,430	$ 10,219
Fixed-price
Disaggregation of Revenue [Line Items]
Revenue	1,066	493	2,026	926
Cost-plus
Disaggregation of Revenue [Line Items]
Revenue	3,654	3,332	7,088	7,110
Time and Material
Disaggregation of Revenue [Line Items]
Revenue	1,744	1,512	4,316	2,183
Related party
Disaggregation of Revenue [Line Items]
Revenue	4,589	4,699	10,073	8,796
Commercial
Disaggregation of Revenue [Line Items]
Revenue	$ 1,875	$ 638	$ 3,357	$ 1,423

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No definition available.

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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.

+ References

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