Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Oct. 01, 2023	Oct. 02, 2022
Cash flows from operating activities:
Net loss	$ (2,305)	$ (3,035)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	697	516
ROU asset amortization	760	585
Stock-based compensation	1,917	1,347
Write-down of inventories and reclassifications	605	72
Gain on disposal of equipment	0	(27)
Other	4	0
Changes in operating assets and liabilities:
Accounts receivable	2,205	(2,611)
Contract assets	(2,028)	0
Inventories	(142)	(195)
Other assets	(1,343)	(158)
Trade payables	(836)	668
Accrued liabilities	537	(52)
Deferred revenue	61	(239)
Lease Liabilities	(298)	(272)
Other long-term liabilities	48	(22)
Net cash used in operating activities	(118)	(3,423)
Cash flows from investing activities:
Capital expenditures for property and equipment	(2,015)	(139)
Capitalized internal-use software	(422)	(495)
Net cash used in investing activities	(2,437)	(634)
Cash flows from financing activities:
Payment of finance lease obligations	(435)	(299)
Proceeds from line of credit	45,000	45,000
Repayment of line of credit	(45,000)	(45,000)
Proceeds from issuance of common stock	121	4,787
Proceeds from issuance of common stock to investors	2,313	0
Stock issuance cost	(20)	0
Net cash provided by financing activities	1,979	4,488
Net increase (decrease) in cash, cash equivalents and restricted cash	(576)	431
Cash, cash equivalents and restricted cash at beginning of period	19,201	19,605
Cash, cash equivalents and restricted cash at end of period	18,625	20,036
Supplemental disclosures of cash flow information:
Interest paid	59	18
Income taxes paid	11	14
Supplemental disclosures of noncash financing and investing items
Purchases of fixed assets with financing lease	445	0
Stock-based compensation capitalized as internal-use software	119	0
Purchases of property and equipment in accounts payable	$ 2,296	$ 0