Basis of Presentation and General Information (Narrative) (Details)		3 Months Ended
	Sep. 23, 2024 USD ($)	Mar. 28, 2025 USD ($) Segment	Mar. 29, 2024 USD ($)	Dec. 27, 2024 USD ($)	Dec. 29, 2023 USD ($)
Basis Of Presentation And General Information [Line Items]
Goodwill		$ 90,221,000		$ 89,782,000
Amortization expense		$ 145,000
Number of operating segments | Segment		3
Number of reportable segments | Segment		3
Number of reporting units | Segment		3
Revenue recognized as a result of change in contract liability		$ 4,300,000	$ 5,700,000
Contract liabilities		14,919,000		11,118,000	$ 12,100,000
Deferred commissions				$ 1,800,000	$ 1,700,000
Commissions expense		400,000	300,000
Impairment loss recognized to capitalization of deferred commissions		0
Segment revenue		$ 77,865,000	$ 77,187,000
Minimum [Member]
Basis Of Presentation And General Information [Line Items]
Business relationship agreement period		6 months
Maximum [Member]
Basis Of Presentation And General Information [Line Items]
Business relationship agreement period		12 months
Customer contract period		12 months
Leewayhertz Technologies Private Limited [Member]
Basis Of Presentation And General Information [Line Items]
Percentage of equity acquired	100.00%
Purchase consideration	$ 7,806,000
Goodwill	5,876,000
Intangible assets	$ 2,500,000	$ 2,500,000
Intangible assets, remaining weighted average useful life	4 years 4 months 24 days