Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 28, 2025	Jun. 29, 2024
Operating activities:
Net loss	$ (2,680)	$ (6,143)
Adjustments to reconcile net loss to net cash used in operating activities:
Loss on extinguishment of convertible note payable	1,335	0
Depreciation and amortization	262	312
Amortization of operating lease right-of-use assets	497	460
Accretion of original issue discount	58	0
Amortization of debt issuance costs	109	0
Stock-based compensation	470	813
Changes in operating assets and liabilities:
Accounts receivable	(1,186)	458
Receivable from related party	(450)	1,154
Inventories	2,382	(1,218)
Prepaid expenses and other current assets	339	(874)
Other long-term assets	121	(25)
Accounts payable	(2,025)	3,268
Payable to related party	(174)	391
Accrued compensation	189	520
Accrued expenses	107	(1,128)
Deferred revenue	(670)	(878)
Operating lease liabilities	(512)	(457)
Other liabilities	282	373
Net cash used in operating activities	(1,546)	(2,974)
Investing activities:
Acquisition of property and equipment	(24)	(3)
Net cash used in investing activities	(24)	(3)
Financing activities:
Proceeds from issuance of convertible note payable	4,000	0
Payments on convertible note payable	(3,961)	0
Proceeds from issuance of Series B convertible preferred stock	6,000	0
Taxes paid related to net share settlements of equity awards	(14)	0
Net cash provided by financing activities	6,025	0
Effect of foreign exchange rate changes	(64)	54
Net increase (decrease) in cash and cash equivalents	4,391	(2,923)
Cash and cash equivalents, beginning of period	2,387	7,034
Cash and cash equivalents, end of period	6,778	4,111
Supplemental disclosure of cash flow information:
Cash paid during the period for income taxes	24	20
Supplemental disclosure of non-cash activities:
Debt issuance cost	360	0
Issuance of common shares in conjunction with extinguishment of convertible note payable	$ 250	$ 0