Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2024	Dec. 30, 2023
Operating activities:
Net loss	$ (8,910)	$ (9,570)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	584	1,098
Amortization of operating lease right-of-use assets	840	934
Accretion of original issue discount	146	0
Amortization of debt issuance costs	182	0
Stock-based compensation	1,243	1,650
Changes in operating assets and liabilities:
Accounts receivable	776	(254)
Receivable from related party	484	612
Inventories	(911)	644
Prepaid expenses and other current assets	(1,108)	612
Other long-term assets	2	(427)
Accounts payable	2,486	641
Payable to related party	381	213
Accrued compensation	53	(829)
Accrued expenses	(1,519)	448
Deferred revenue	(1,903)	(1,723)
Operating lease liabilities	(841)	(924)
Other liabilities	730	130
Net cash used in operating activities	(7,285)	(6,745)
Investing activities:
Acquisition of property and equipment	(13)	(109)
Net cash used in investing activities	(13)	(109)
Financing activities:
Net proceeds from issuance of convertible note payable	3,370	0
Payments on note payable	(218)	0
Cash paid for debt issuance costs	(493)	0
Proceeds for stock option exercises	4	82
Taxes paid related to net share settlements of equity awards	(58)	(87)
Net cash provided by (used in) financing activities	2,605	(5)
Effect of foreign exchange rate changes	46	(29)
Net decrease in cash and cash equivalents	(4,647)	(6,888)
Cash and cash equivalents, beginning of period	7,034	13,922
Cash and cash equivalents, end of period	2,387	7,034
Supplemental disclosure of cash flow information:
Cash paid during the period for income taxes	15	53
Supplemental disclosure of non-cash activities:
Transfer of inventory to property and equipment	0	(9)
ROU assets obtained with extension of operating lease	0	1,901
Issuance of incentive shares under convertible note payable	$ 250	$ 0