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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. 27, 2024	Sep. 27, 2024	Jun. 28, 2024	Mar. 29, 2024	Dec. 29, 2023	Sep. 29, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 27, 2024	Dec. 29, 2023	Dec. 30, 2022
Disaggregation Of Revenue [Line Items]
Segment revenue	$ 79,235	$ 79,777	$ 77,656	$ 77,187	$ 72,403	$ 75,856	$ 77,102	$ 71,229	$ 313,855	$ 296,590	$ 293,742
Global S&BT [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue									171,096	171,927	169,660
Oracle Solutions [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue									85,707	77,772	76,320
SAP Solutions [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue									57,052	46,891	47,762
Consulting and Software Support and Maintenance [Member] | Oracle Solutions [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue									85,707	77,772	76,320
Consulting and Software Support and Maintenance [Member] | SAP Solutions [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue									41,912	41,324	40,729
Software License Sales [Member] | SAP Solutions [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue									15,140	5,567	7,033
North America [Member] | Consulting [Member] | Global S&BT [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue									139,022	144,960	143,956
International [Member] | Consulting [Member] | Global S&BT [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue									$ 32,074	$ 26,967	$ 25,704

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