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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. 30, 2022 | Sep. 30, 2022 | Jul. 01, 2022 | Apr. 01, 2022 | Dec. 31, 2021 | Oct. 01, 2021 | Jul. 02, 2021 | Apr. 02, 2021 | Dec. 30, 2022 | Dec. 31, 2021 | Jan. 01, 2021
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment revenue | $ 70,117 | $ 72,033 | $ 75,928 | $ 75,664 | $ 70,232 | $ 71,894 | $ 73,197 | $ 63,486 | $ 293,742 | $ 278,809 | $ 239,482
Global S&BT [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment revenue |  |  |  |  |  |  |  |  | 169,660 | 146,224 | 117,820
Oracle Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment revenue |  |  |  |  |  |  |  |  | 76,320 | 74,886 | 73,095
SAP Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment revenue |  |  |  |  |  |  |  |  | 47,762 | 57,699 | 48,567
Consulting and Software Support and Maintenance [Member] | Oracle Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment revenue |  |  |  |  |  |  |  |  | 76,320 | 74,886 | 73,095
Consulting and Software Support and Maintenance [Member] | SAP Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment revenue |  |  |  |  |  |  |  |  | 40,729 | 47,391 | 41,828
Software License Sales [Member] | SAP Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment revenue |  |  |  |  |  |  |  |  | 7,033 | 10,308 | 6,739
North America [Member] | Consulting [Member] | Global S&BT [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment revenue |  |  |  |  |  |  |  |  | 143,956 | 122,607 | 96,175
International [Member] | Consulting [Member] | Global S&BT [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment revenue |  |  |  |  |  |  |  |  | $ 25,704 | $ 23,617 | $ 21,645

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