Basis of Presentation and General Information (Summary of Disaggregation of Total Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2023	Sep. 30, 2022	Sep. 29, 2023	Sep. 30, 2022
Disaggregation Of Revenue [Line Items]
Segment revenue	$ 75,856	$ 72,033	$ 224,187	$ 223,625
Global S&BT [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue	43,798	41,593	129,765	128,760
Global S&BT [Member] | Consulting [Member] | North America [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue	37,032	35,804	109,642	109,587
Global S&BT [Member] | Consulting [Member] | International [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue	6,766	5,789	20,123	19,173
Oracle Solutions [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue	20,831	17,682	58,774	59,165
Oracle Solutions [Member] | Consulting and Software Support and Maintenance [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue	20,831	17,682	58,774	59,165
SAP Solutions [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue	11,227	12,758	35,648	35,700
SAP Solutions [Member] | Consulting and Software Support and Maintenance [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue	10,605	10,118	32,372	30,880
SAP Solutions [Member] | Software Sales [Member]
Disaggregation Of Revenue [Line Items]
Segment revenue	$ 622	$ 2,640	$ 3,276	$ 4,820