Fair Value Measurements (Details) - USD ($) $ in Thousands	Sep. 27, 2025	Dec. 28, 2024
Financial liabilities:
Finance leases, including current portion	$ 343	$ 456
Carrying Amount
Financial assets:
Cash and cash equivalents	3,438	19
Restricted cash	3,886	0
Financial liabilities:
Long-term debt, including current portion	81,089	81,892
Finance leases, including current portion	343	456
Fair Value
Financial assets:
Cash and cash equivalents	3,438	19
Restricted cash	3,886	0
Financial liabilities:
Long-term debt, including current portion	69,946	73,249
Finance leases, including current portion	$ 323	$ 434