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REVENUE - Summary of Revenues from Contracts with Customers Disaggregated by Categories (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Total revenue	$ 28,726	$ 25,317
Fixed-price
Disaggregation of Revenue [Line Items]
Total revenue	5,229	4,137
Cost-plus
Disaggregation of Revenue [Line Items]
Total revenue	13,702	14,546
Time and Material
Disaggregation of Revenue [Line Items]
Total revenue	9,795	6,634
Related party
Disaggregation of Revenue [Line Items]
Total revenue	22,763	20,562
Commercial
Disaggregation of Revenue [Line Items]
Total revenue	$ 5,963	$ 4,755

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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.

+ References

No definition available.

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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.

+ References

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