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Note 4 - Balance Sheet Components - Balance Sheet Components (Details) - USD ($)
$ in Thousands
Jul. 02, 2023
Jun. 30, 2023
Jan. 01, 2023
Trade account receivables $ 951   $ 2,707
Less: Allowance for doubtful accounts (14)   (18)
Accounts Receivable, after Allowance for Credit Loss 937   2,689
Inventories:      
Work-in-process 1,871   1,826
Finished goods 584   667
Inventory, Net 2,455   2,493
Other current assets:      
Prepaid taxes 502   510
Deferred charges 428   295
Other prepaid taxes, royalties, and other prepaid expenses 745   500
Other 198   265
Prepaid Expense and Other Assets, Current 3,045   1,570
Property and equipment, net:      
Property and equipment, gross 14,289   12,467
Less: Accumulated depreciation and amortization (12,106)   (12,002)
Property, Plant and Equipment, Net 2,183   465
Capitalized internal-use software, net:      
Capitalized internal-use software 2,734   2,370
Less: Accumulated amortization (1,112)   (856)
Capitalized Computer Software, Net 1,622   1,514
Accrued liabilities:      
Accrued compensation 1,307   865
Accrued employee benefits 38   40
Accrued payroll tax 68   57
Other 552   547
Accrued Liabilities, Current 1,965   1,509
Equipment [Member]      
Property and equipment, net:      
Property and equipment, gross 10,287   10,133
Tooling [Member]      
Property and equipment, net:      
Property and equipment, gross 1,668 [1] $ 1,670 0 [1]
Software and Software Development Costs [Member]      
Property and equipment, net:      
Property and equipment, gross 1,803   1,803
Furniture and Fixtures [Member]      
Property and equipment, net:      
Property and equipment, gross 65   65
Leasehold Improvements [Member]      
Property and equipment, net:      
Property and equipment, gross 466   466
Notes Receivable [Member]      
Other current assets:      
Note receivable (1) [2] $ 1,172   $ 0
[1] In Q2 2023, the Company capitalized $1.67 million related to tooling to be utilized under its long-term professional services contracts. The tooling will be depreciated over an estimated useful life of seven years.
[2] On April 28, 2023, the Company converted accounts receivable for a customer in the amount of approximately $1.16 million to notes receivable (the "Note"). At the time, the Note bore an interest rate of 3.0% compounded monthly. On June 28, 2023, the Company cancelled the original note and entered into a revised promissory note with the customer, where the interest rate changed to 4.69% compounded monthly, or a 4.8% effective annual interest rate, accruing from the date of the prior note. If not prepaid prior to the Note maturity date of June 28, 2024, the principal and all accrued and unpaid interest will be due and payable to the Company. If an event of default occurs, the interest rate will increase to 10.0%. All other terms of the note remained the same.