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Note 3 - Revenue Recognition - Revenues Disaggregated by Revenue Source (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 29, 2025 | Mar. 30, 2024
Revenue | $ 84,473 | $ 71,939
Health Care [Member] |  |
Revenue | 43,283 | 38,182
Engineering Services [Member] |  |
Revenue | 32,142 | 23,505
Technology Service [Member] |  |
Revenue | 9,048 | 10,252
Time-and-Materials Contract [Member] | Health Care [Member] |  |
Revenue | 42,872 | 37,804
Time-and-Materials Contract [Member] | Engineering Services [Member] |  |
Revenue | 14,507 | 11,242
Time-and-Materials Contract [Member] | Technology Service [Member] |  |
Revenue | 6,030 | 9,133
Permanent Placement Services [Member] | Health Care [Member] |  |
Revenue | 411 | 378
Permanent Placement Services [Member] | Technology Service [Member] |  |
Revenue | 71 | 73
Fixed-Price Contract [Member] | Engineering Services [Member] |  |
Revenue | 17,635 | 12,263
Fixed-Price Contract [Member] | Technology Service [Member] |  |
Revenue | $ 2,947 | $ 1,046

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