Income Taxes Components of Deferred Tax Assets and Liabilities, Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2024	Dec. 30, 2023
Operating Loss Carryforwards [Line Items]
Federal tax credit carryforwards	$ 4,778	$ 4,579
Deferred tax liabilities, net	91	91
Deferred tax assets capitalized research and development costs	4,282	$ 4,642
Federal Taxing Authority
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	30,045
State Taxing Authority
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 63,275
Internal Revenue Service (IRS) | Earliest Tax Year
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards and tax credit carryforwards, expiration date	2030
Internal Revenue Service (IRS) | Latest Tax Year
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards and tax credit carryforwards, expiration date	2045