Unaudited Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Oct. 01, 2023	Jan. 01, 2023
Current assets:
Cash, cash equivalents and restricted cash	$ 18,625	$ 19,201
Accounts receivable, net of allowance for doubtful accounts of $16 and $18, as of October 1, 2023 and January 1, 2023, respectively	481	2,689
Contract assets	4,015	1,987
Note receivable	1,186	0
Inventories	2,030	2,493
Prepaid expenses and other current assets	1,726	1,570
Total current assets	28,063	27,940
Property and equipment, net	4,547	465
Capitalized internal-use software, net	1,666	1,514
Total right-of-use assets	1,082	1,397
Intangible assets, net	564	645
Non-marketable equity investment	300	300
Goodwill	185	185
Other assets	142	140
TOTAL ASSETS	36,549	32,586
Current liabilities:
Revolving line of credit	15,000	15,000
Trade payables	3,851	2,391
Accrued liabilities	2,047	1,509
Deferred revenue	333	272
Lease liabilities, current	821	850
Total current liabilities	22,052	20,022
Long-term liabilities:
Lease liabilities, non-current	284	544
Other liabilities, non-current	173	125
Total liabilities	22,509	20,691
Commitments and contingencies (see Note 11)
Stockholders' equity:
Preferred stock, $0.001 par value; 10,000 shares authorized; no shares issued and outstanding	0	0
Common stock, $0.001 par value; 200,000 authorized; 13,906 and 13,202 shares issued and outstanding as of October 1, 2023 and January 1, 2023, respectively	14	13
Additional paid-in capital	321,623	317,174
Accumulated deficit	(307,597)	(305,292)
Total stockholders' equity	14,040	11,895
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 36,549	$ 32,586