Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2025	Mar. 30, 2024
Operating activities:
Net loss	$ (1,686)	$ (3,464)
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	135	173
Amortization of operating lease right-of-use assets	246	230
Accretion of original issue discount	58	0
Amortization of debt issuance costs	78	0
Stock-based compensation	213	394
Changes in operating assets and liabilities:
Accounts receivable	(729)	202
Receivable from related party	(263)	306
Inventories	675	(1,097)
Prepaid expenses and other current assets	(393)	(1,154)
Other long-term assets	96	72
Accounts payable	(1,291)	3,182
Payable to related party	51	82
Accrued compensation	343	637
Accrued expenses	492	(884)
Deferred revenue	(468)	(274)
Operating lease liabilities	(250)	(225)
Other liabilities	209	172
Net cash used in operating activities	(1,149)	(1,648)
Investing activities:
Acquisition of property and equipment	(11)	(3)
Net cash used in investing activities	(11)	(3)
Financing activities:
Net proceeds from issuance of convertible note payable	4,000	0
Payments on note payable	(3,961)	0
Proceeds from issuance of Series B Preferred stock	6,000	0
Net cash provided by financing activities	6,039	0
Effect of foreign exchange rate changes	(22)	36
Net increase (decrease) in cash and cash equivalents	4,857	(1,615)
Cash and cash equivalents, beginning of year	2,387	7,034
Cash and cash equivalents, end of year	7,244	5,419
Supplemental disclosure of cash flow activities:
Cash paid during the period for income taxes	24	0
Supplemental disclosure of non-cash activities:
Debt issuance cost	360	0
Issuance of common shares in conjunction with extinguishment of convertible notes payable	$ 250	$ 0