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Basis of Presentation and General Information (Summary of Disaggregation of Total Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 26, 2025	Sep. 27, 2024	Sep. 26, 2025	Sep. 27, 2024
Disaggregation Of Revenue [Line Items]
Segment revenue	$ 73,111	$ 79,777	$ 229,875	$ 234,620
Global S&BT [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue	42,925	44,065	130,487	127,219
Global S&BT [Member] | Consulting [Member] | North America [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue	33,246	36,563	100,508	105,201
Global S&BT [Member] | Consulting [Member] | International [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue	9,679	7,502	29,979	22,018
Oracle Solutions [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue	16,504	22,759	58,390	67,533
Oracle Solutions [Member] | Consulting and Software Support and Maintenance [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue	12,977	10,934	35,246	31,576
SAP Solutions [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue	13,682	12,953	40,998	39,868
SAP Solutions [Member] | Consulting and Software Support and Maintenance [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue	16,504	22,759	58,390	67,533
SAP Solutions [Member] | Software-related sales [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue	$ 705	$ 2,019	$ 5,752	$ 8,292

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