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SUPPLEMENTAL FINANCIAL STATEMENT DATA - Equipment and Leasehold Improvements, Net - Tabular Disclosure (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 30, 2022
--- | --- | ---
Equipment and Leasehold Improvements |  |
Equipment under finance leases | $ 5,434 | $ 5,503
Equipment and leasehold improvements, gross | 54,813 | 51,431
Accumulated depreciation and amortization | (30,318) | (28,894)
Total equipment and leasehold improvements, net | 24,495 | 22,537
Furniture and Fixtures |  |
Equipment and Leasehold Improvements |  |
Equipment and leasehold improvements | 4,176 | 4,062
Computer Hardware and Software |  |
Equipment and Leasehold Improvements |  |
Equipment and leasehold improvements | 38,172 | 35,635
Leasehold Improvements |  |
Equipment and Leasehold Improvements |  |
Equipment and leasehold improvements | 3,832 | 3,097
Automobiles Trucks and Field Equipment |  |
Equipment and Leasehold Improvements |  |
Equipment and leasehold improvements | $ 3,199 | $ 3,134

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- Definition Amount, before accumulated amortization, of right-of-use asset from finance lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
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