Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 25, 2021
Allowance for doubtful accounts
Year ended:
Balance at beginning of year	$ 108	$ 92
Charged to costs and expenses	62	46
Charged to other accounts	0	0
Deductions	59	30
Balance at end of year	111	108
Provision for claims, allowances and warranties
Year ended:
Balance at beginning of year	3,711	3,504
Charged to costs and expenses	8,639	6,027
Charged to other accounts	0	0
Deductions	8,967	5,820
Balance at end of year	$ 3,383	$ 3,711