Revenue, Receivables and Contract Assets and Liabilities - Summary of Company's Revenue Disaggregated by Contract Types (Details) - USD ($) $ in Thousands	12 Months Ended
Jan. 02, 2026	Jan. 03, 2025
Disaggregation of Revenue [Line Items]
Total revenue	$ 492,844	$ 480,236
Fixed-Price [Member]
Disaggregation of Revenue [Line Items]
Total revenue	434,883	442,243
Cost Reimbursable [Member]
Disaggregation of Revenue [Line Items]
Total revenue	56,772	36,070
Equipment and Labor Revenue [Member]
Disaggregation of Revenue [Line Items]
Total revenue	$ 1,189	$ 1,923

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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