Basis of Presentation and General Information (Summary of Disaggregation of Total Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2024	Mar. 31, 2023
Disaggregation Of Revenue [Line Items]
Segment revenue	$ 77,187	$ 71,229
Global S&BT [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue	40,892	42,335
Global S&BT [Member] | Consulting [Member] | North America [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue	33,690	36,166
Global S&BT [Member] | Consulting [Member] | International [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue	7,202	6,169
Oracle Solutions [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue	21,729	17,168
Oracle Solutions [Member] | Consulting and Software Support and Maintenance [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue	21,729	17,168
SAP Solutions [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue	14,566	11,726
SAP Solutions [Member] | Consulting and Software Support and Maintenance [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue	9,836	10,712
SAP Solutions [Member] | Software License Sales [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue	$ 4,730	$ 1,014