Accrued Expenses (Details) - USD ($) $ in Thousands	Dec. 28, 2019		Dec. 29, 2018
Payables and Accruals [Abstract]
Compensation and benefits (1)	$ 8,804	[1]	$ 8,186
Provision for customer rebates, claims and allowances	7,682		9,300
Advanced customer deposits	4,685		6,013
Outstanding checks in excess of cash	0		3,141
Other	4,247		4,212
Accrued expenses	25,418		$ 30,852
Letters of Credit Outstanding, Amount	$ 2,744

[1] Includes a liability related to the Company's self-insured Workers' Compensation program. This program is collateralized by letters of credit in the aggregate amount of $2,744.