Accrued Expenses (Details) - USD ($) $ in Thousands		9 Months Ended
		Sep. 28, 2019	Dec. 29, 2018
Payables and Accruals [Abstract]
Compensation and benefits		$ 9,980	$ 8,186
Provision for customer rebates, claims and allowances		9,271	9,300
Advanced customer deposits		5,541	6,013
Outstanding checks in excess of cash		2,357	3,141
Other (1)	[1]	6,575	4,212
Accrued expenses		33,724	$ 30,852
Settlement of class action litigation		$ 1,514

[1] Includes an accrual of $1,514 for the settlement of a class action lawsuit (See Legal Proceedings section under Note 19).