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Note 4 - Balance Sheet Components - Balance Sheet Components (Details) - USD ($)
$ in Thousands
Sep. 29, 2024
Dec. 31, 2023
Inventories, net:    
Work-in-process $ 1,438 $ 1,602
Finished goods 342 427
Inventory, Net 1,780 2,029
Prepaid expenses and other current assets:    
Prepaid taxes 522 498
Deferred charges 999 290
Deferred cost of sales 586 2
Other prepaid taxes, royalties, and other prepaid expenses 632 627
Other 180 144
Prepaid Expense and Other Assets, Current 2,919 1,561
Property and equipment, net:    
Property and equipment, gross 27,540 22,199
Less: Accumulated depreciation and amortization (13,403) (13,251)
Property, Plant and Equipment, Net 14,137 8,948
Capitalized internal-use software, net:    
Capitalized internal-use software 4,316 3,491
Less: Accumulated amortization (1,964) (1,422)
Capitalized Computer Software, Net 2,352 2,069
Intangible assets, net:    
Intangible assets 1,156 1,156
Less: Accumulated amortization (699) (619)
Finite-Lived Intangible Assets, Net 457 537
Accrued liabilities:    
Accrued compensation 649 1,910
Accrued employee benefits 181 57
Accrued payroll tax 141 197
Other 486 509
Accrued Liabilities, Current 1,457 2,673
Equipment [Member]    
Property and equipment, net:    
Property and equipment, gross 9,613 10,503
Software Tools [Member]    
Property and equipment, net:    
Property and equipment, gross 3,009 2,163
Tooling [Member]    
Property and equipment, net:    
Property and equipment, gross 12,437 7,085
Software and Software Development Costs [Member]    
Property and equipment, net:    
Property and equipment, gross 1,776 1,803
Furniture and Fixtures [Member]    
Property and equipment, net:    
Property and equipment, gross 58 65
Leasehold Improvements [Member]    
Property and equipment, net:    
Property and equipment, gross $ 647 $ 580