Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 28, 2024	Sep. 30, 2023	Sep. 28, 2024	Sep. 30, 2023
Income Taxes [Line Items]
Provision for income taxes	$ 962,000	$ 796,000	$ 2,189,000	$ 1,298,000
Income tax charge (benefit)	181,000	288,000	552,000	608,000
Income tax provision on earnings of subsidiaries	779,000	$ 505,000	1.6	$ 685,000
Trade and Other Accounts Receivable Current | Employee Retention Credit
Income Taxes [Line Items]
Government assistance receivable current	$ 2,400,000		2,400,000
Discontinued Operations | Employee Retention Credit
Income Taxes [Line Items]
Government assistance recognized			933,000
Other Nonoperating Income (Expense) | Employee Retention Credit
Income Taxes [Line Items]
Government assistance recognized			$ 1,500,000