Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 29, 2024	Jul. 01, 2023
Operating activities:
Net loss	$ (6,143)	$ (4,856)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	312	374
Amortization of operating lease right-of-use assets	460	527
Stock-based compensation	813	873
Changes in operating assets and liabilities:
Accounts receivable	458	62
Receivable from related party	1,154	1,157
Inventories	(1,218)	(513)
Prepaid expenses and other current assets	(874)	252
Other long-term assets	(25)	(288)
Accounts payable	3,268	286
Payable to related party	391	119
Accrued compensation	520	(286)
Accrued expenses	(1,128)	(154)
Deferred revenue	(878)	(962)
Operating lease liabilities	(457)	(510)
Other liabilities	373	(65)
Net cash used in operating activities	(2,974)	(3,984)
Investing activities:
Acquisition of property and equipment	(3)	(59)
Net cash used in investing activities	(3)	(59)
Financing activities:
Proceeds for stock option exercises	0	37
Taxes paid related to net share settlements of equity awards	0	(63)
Net cash used in financing activities	0	(26)
Effect of foreign exchange rate changes	54	(32)
Net decrease in cash and cash equivalents	(2,923)	(4,101)
Cash and cash equivalents, beginning of period	7,034	13,922
Cash and cash equivalents, end of period	4,111	9,821
Supplemental disclosure of cash flow information:
Cash paid during the period for income taxes	20	53
Supplemental disclosure of non-cash activities:
Transfer of inventory to property and equipment	$ 0	$ 3