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Schedule of Stock-Based Compensation Expense Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block] Repurchases of common stock Payments for Repurchase of Common Stock Deferred revenue Contract with Customer, Liability, Current Total current assets Assets, Current Insider Trading Arrangements [Line Items] Reportable Segment Reportable Segment [Member] Reportable Segment Award Type [Axis] Award Type [Axis] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, after Allowance for Credit Loss Accounts receivable, net Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss, Current Accumulated deficit Retained Earnings (Accumulated Deficit) Product and Service [Axis] Product and Service [Axis] Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Common Stock Common Stock [Member] Rent expense Operating Lease, Cost Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Number of shares issued (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period Cover [Abstract] Concentration risk, percentage Concentration Risk, Percentage Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Equity Awards Adjustments Equity Awards Adjustments [Member] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Total liabilities and stockholders’ equity Liabilities and Equity Stock Options Share-Based Payment Arrangement, Option [Member] Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Table] Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Table] Segments [Axis] Segments [Axis] Operations Accrued Operations, Current Accrued Operations, Current Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Plan Name [Axis] Plan Name [Axis] Schedule of Accounts Receivable, Net Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Tabular List, Table Tabular List [Table Text Block] Vesting [Axis] Vesting [Axis] Other long-term liabilities Increase (Decrease) in Other Noncurrent Liabilities Other income (expense), net Other Nonoperating Income (Expense) Name Awards Close in Time to MNPI Disclosures, Individual Name Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] General and administrative General and Administrative Expense Property, Plant and Equipment, Type [Domain] Long-Lived Asset, Class [Domain] Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Schedule of Property, Plant and Equipment [Table] Property, Plant, and Equipment [Table] Preferred stock, $0.025 par value; 5,000 shares authorized; no shares issued and outstanding as of June 27, 2026 and December 31, 2025 Preferred Stock, Value, Issued Adjustment to Compensation: Adjustment to Compensation [Axis] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Marketable securities Debt Securities, Available-for-Sale, Excluding Accrued Interest, Current Number of employee stock purchase plans Number Of Employee Stock Purchase Plans Number Of Employee Stock Purchase Plans Shares purchased under ESPP (in shares) Stock Issued During Period, Shares, Employee Stock Ownership Plan Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Total assets Assets, Fair Value Disclosure Name Measure Name Freight Accrued Freight, Current Accrued Freight, Current Income Taxes Income Tax Disclosure [Text Block] Schedule of Cash and Cash Equivalents [Table] Cash and Cash Equivalent [Table] Accounts payable Accounts Payable, Current Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Additional Paid-in Capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Test equipment Equipment [Member] Name Trading Arrangement, Individual Name Cash and cash equivalents Total cash and cash equivalents Cash and Cash Equivalent Components Inventory, Raw Materials, Net of Reserves Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Operating lease, liability, current, statement of financial position Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Company Selected Measure Amount Company Selected Measure Amount Component inventory held by suppliers Accrued Excess and Obsolete Inventory At Contract Manufacturer, Current Accrued excess and obsolete inventory at contract manufacturer. Depreciation and amortization Depreciation, Depletion and Amortization Entity Address, Address Line Two Entity Address, Address Line Two Issuance of common stock under equity incentive plans, net of forfeitures (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Commercial paper Commercial Paper, Not Included with Cash and Cash Equivalents [Member] Current assets: Assets, Current [Abstract] Weighted average remaining lease term for operating lease (in years) Operating Lease, Weighted Average Remaining Lease Term Non-PEO NEO Non-PEO NEO [Member] Maximum number of shares allocated per purchase period (in shares) Share-Based Compensation Arrangement By Share-Based Payment Award, Number Of Shares Authorized Per Purchase Period Share-Based Compensation Arrangement By Share-Based Payment Award, Number Of Shares Authorized Per Purchase Period Entity Address, Address Line One Entity Address, Address Line One Income taxes Income taxes Income taxes Income Tax Expense (Benefit) Customer Concentration Risk Customer Concentration Risk [Member] Total cost of revenue Cost of Product and Service Sold Award Timing Method Award Timing Method [Text Block] Net decrease in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forecast Forecast [Member] Cash, Cash Equivalents and Marketable Securities Cash, Cash Equivalent, and Marketable Security [Text Block] Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Numerator: Net Income (Loss) Attributable to Parent [Abstract] Net income (loss) Net income (loss) Net income (loss) Net Income (Loss) Attributable to Parent Thereafter Lessee, Operating Lease, Liability, To Be Paid, After Year Four Lessee, Operating Lease, Liability, To Be Paid, After Year Four Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Customer One Customer One [Member] Customer One Balance Sheet Location [Axis] Location, Statement of Financial Position, Balance [Axis] Statement [Table] Statement [Table] Period Two Share-Based Payment Arrangement, Tranche Two [Member] Restatement Determination Date: Restatement Determination Date [Axis] Proceeds from common stock issuances related to employee benefit plans Proceeds from Stock Options Exercised Certificates of deposit Certificates of deposit Certificates of deposit Certificates of Deposit [Member] Net income per share, target achievement performance threshold (in percent) Share-Based Compensation Arrangement By Share-Based Payment Award, Target Achievement Performance Threshold, Percent Share-Based Compensation Arrangement By Share-Based Payment Award, Target Achievement Performance Threshold, Percent Capitalized contract cost, impairment Capitalized Contract Cost, Impairment Loss Stock Purchase And Matching Plan, Matching Component Stock Purchase And Matching Plan, Matching Component [Member] Stock Purchase And Matching Plan, Matching Component Schedule of Lessee, Operating Lease Liability Lessee, Operating Lease Liability [Table Text Block] Lessee, Operating Lease Liability Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Target achievement threshold for shares award sliding scale (in percent) Share-Based Compensation Arrangement By Share-Based Payment Award, Shares Award Target Achievement Performance Threshold, Percent Share-Based Compensation Arrangement By Share-Based Payment Award, Shares Award Target Achievement Performance Threshold, Percent