Fair Value Measurements (Carrying Amount and Fair Value) (Details) - USD ($) $ in Thousands	Jul. 01, 2023	Dec. 31, 2022
Financial liabilities:
Finance leases, including current portion	$ 12,304	$ 12,660
Carrying Amount
Financial assets:
Cash and cash equivalents	102	363
Financial liabilities:
Long-term debt, including current portion	83,859	86,638
Finance leases, including current portion	12,304	12,660
Fair Value
Financial assets:
Cash and cash equivalents	102	363
Financial liabilities:
Long-term debt, including current portion	74,979	76,684
Finance leases, including current portion	$ 11,174	$ 11,576