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Basis of Presentation and General Information (Summary of Disaggregation of Total Revenue) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 29, 2023 | Sep. 29, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 30, 2022 | Sep. 30, 2022 | Jul. 01, 2022 | Apr. 01, 2022 | Dec. 29, 2023 | Dec. 30, 2022 | Dec. 31, 2021
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment revenue | $ 72,403 | $ 75,856 | $ 77,102 | $ 71,229 | $ 70,117 | $ 72,033 | $ 75,928 | $ 75,664 | $ 296,590 | $ 293,742 | $ 278,809
Global S&BT [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment revenue |  |  |  |  |  |  |  |  | 171,927 | 169,660 | 146,224
Oracle Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment revenue |  |  |  |  |  |  |  |  | 77,772 | 76,320 | 74,886
SAP Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment revenue |  |  |  |  |  |  |  |  | 46,891 | 47,762 | 57,699
Consulting and Software Support and Maintenance [Member] | Oracle Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment revenue |  |  |  |  |  |  |  |  | 77,772 | 76,320 | 74,886
Consulting and Software Support and Maintenance [Member] | SAP Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment revenue |  |  |  |  |  |  |  |  | 41,324 | 40,729 | 47,391
Software License Sales [Member] | SAP Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment revenue |  |  |  |  |  |  |  |  | 5,567 | 7,033 | 10,308
North America [Member] | Consulting [Member] | Global S&BT [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment revenue |  |  |  |  |  |  |  |  | 144,960 | 143,956 | 122,607
International [Member] | Consulting [Member] | Global S&BT [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment revenue |  |  |  |  |  |  |  |  | $ 26,967 | $ 25,704 | $ 23,617

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