Equity Components [Axis]
Common Stock [Member]
Additional Paid-in Capital [Member]
AOCI Attributable to Parent [Member]
Retained Earnings [Member]
Sale of Stock [Axis]
ATM [Member]
Concentration Risk Benchmark [Axis]
Revenue Benchmark [Member]
Customer [Axis]
One Customer [Member]
Concentration Risk Type [Axis]
Customer Concentration Risk [Member]
Another Customer [Member]
Fair Value Hierarchy and NAV [Axis]
Fair Value, Inputs, Level 1 [Member]
Measurement Frequency [Axis]
Fair Value, Recurring [Member]
Financial Instrument [Axis]
Cash [Member]
Mutual Fund [Member]
US Agency Bonds [Member]
Geographical [Axis]
North America [Member]
Europe [Member]
Primary Geographic Market [Member]
Timing of Transfer of Good or Service [Axis]
Transferred at Point in Time [Member]
Transferred over Time [Member]
Timing Of Revenue Recognition [Member]
Antidilutive Securities [Axis]
Share-Based Payment Arrangement, Option [Member]
Unvested Restricted Stock Units [Member]
Unvested Restricted Stock [Member]
Long-Lived Tangible Asset [Axis]
Laboratory Equipment [Member]
Computer Equipment [Member]
Furniture and Fixtures [Member]
Leasehold Improvements [Member]
Office Equipment [Member]
Software Development [Member]
Property Subject to or Available for Operating Lease [Axis]
Los Gatos C A [Member]
Tempe A Z [Member]
Long-Term Debt, Type [Axis]
Financing Leases [Member]
Operating Leases [Member]
Title and Position [Axis]
Chief Executive Officer [Member]
Plan Name [Axis]
Plan 2007 [Member]
Plan 2017 [Member]
Plan 2023 [Member]
Award Type [Axis]
Equity Option [Member]
Statement of Income Location, Balance [Axis]
Research and Development Expense [Member]
General and Administrative Expense [Member]
Selling And Marketing [Member]
Restricted Stock [Member]
Class of Stock [Axis]
Time Based Units [Member]
Restricted Stock Units (RSUs) [Member]
Performance Based Units [Member]
UNITED STATES
Non-US [Member]
Income Tax Jurisdiction [Axis]
Domestic Tax Jurisdiction [Member]
Domestic Country One [Member]
State and Local Jurisdiction [Member]
State And Local Jurisdiction One [Member]
Cover [Abstract]
Document Type
Amendment Flag
Amendment Description
Document Registration Statement
Document Annual Report
Document Quarterly Report
Document Transition Report
Document Shell Company Report
Document Shell Company Event Date
Document Period Start Date
Document Period End Date
Document Fiscal Period Focus
Document Fiscal Year Focus
Current Fiscal Year End Date
Entity File Number
Entity Registrant Name
Entity Central Index Key
Entity Primary SIC Number
Entity Tax Identification Number
Entity Incorporation, State or Country Code
Entity Address, Address Line One
Entity Address, Address Line Two
Entity Address, Address Line Three
Entity Address, City or Town
Entity Address, State or Province
Entity Address, Country
Entity Address, Postal Zip Code
Country Region
City Area Code
Local Phone Number
Extension
Written Communications
Soliciting Material
Pre-commencement Tender Offer
Pre-commencement Issuer Tender Offer
Title of 12(b) Security
No Trading Symbol Flag
Trading Symbol
Security Exchange Name
Title of 12(g) Security
Security Reporting Obligation
Annual Information Form
Audited Annual Financial Statements
Entity Well-known Seasoned Issuer
Entity Voluntary Filers
Entity Current Reporting Status
Entity Interactive Data Current
Entity Filer Category
Entity Small Business
Entity Emerging Growth Company
Elected Not To Use the Extended Transition Period
Document Accounting Standard
Other Reporting Standard Item Number
Entity Shell Company
Entity Public Float
Entity Bankruptcy Proceedings, Reporting Current
Entity Common Stock, Shares Outstanding
Documents Incorporated by Reference [Text Block]
ICFR Auditor Attestation Flag
Document Financial Statement Error Correction [Flag]
Auditor Firm ID
Auditor Name
Auditor Location
Statement of Financial Position [Abstract]
ASSETS
Current Assets:
Cash and cash equivalents
Short-term investments
Accounts receivable
Interest receivable
Prepaid expenses and other current assets
Total current assets
Property and equipment, net
Long-term prepaid maintenance and supplies
Security deposit
Operating lease right-of-use-asset
Financing lease right-of-use-asset
Total assets
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable
Accrued expenses
Accrued payroll related expenses
Current operating lease liability
Current financing lease liability
Deferred revenue
Total current liabilities
Long-term operating lease liability
Long-term financing lease liability
Total liabilities
Commitments and contingencies (see Note 9)
Stockholders’ equity:
Preferred stock, $0.001 par value, authorized 2,500 shares: none issued and outstanding at December 31, 2025 and 2024
Common stock, $0.001 par value, authorized 47,500 shares; 32,354 shares issued and outstanding at December 31, 2025 and 30,540 shares issued and outstanding at December 31, 2024
Additional paid-in capital
Other comprehensive income
Accumulated deficit
Total stockholders’ equity
Total liabilities and stockholders’ equity
Preferred stock, par value
Preferred stock, shares authorized
Preferred stock, shares issued
Preferred stock, shares outstanding
Common stock, par value
Common stock, shares authorized
Common stock, shares issued
Common stock, shares outstanding
Income Statement [Abstract]
Revenue:
Cost of revenue
Gross margin
Operating Expenses:
Research and development
General and administrative
Selling and marketing
Total operating expenses
Loss from operations
Other income (expense):
Interest income
Accretion income
Other income, net
Interest expense
Total other income, net
Net loss
Net loss per common share, basic
Net loss per common share, diluted
Weighted average number of common shares outstanding, basic
Weighted average number of common shares outstanding, diluted
Net loss
Unrealized gain (loss) on available-for-sale securities
Net comprehensive loss
Statement [Table]
Statement [Line Items]
Beginning balance, value
Beginning balance, shares
Stock-based compensation
Stock-based compensation, shares
Stock option exercises
Stock option exercises, shares
Forfeiture of restricted stock issuance
Forfeiture of restricted stock issuance, shares
At-the-market sale of stock, net of commissions and expenses
At-the-market sale of stock, net of commissions and expenses, shares
Other sale
Other sale, shares
Unrealized gain on available-for-sale securities
Ending balance, value
Ending balance, shares
Statement of Cash Flows [Abstract]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Loss
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization
Operating lease right of use asset amortization
Financing lease right of use asset amortization
Stock-based compensation
Accretion of discounts on available-for-sales securities
Changes in operating assets and liabilities:
Accounts receivable
Unbilled contracts receivable
Interest receivable
Prepaid expenses and other current assets
Accounts payable
Accrued expenses
Accrued payroll expenses
Operating lease liability
Deferred revenue
Net cash used in operating activities
CASH FROM INVESTING ACTIVITIES
Acquisition of property and equipment
Purchase of available-for-sale securities
Maturity of available-for-sale securities
Net cash provided by investing activities
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from at-the-market sale of stock, net of commissions and expenses
Proceeds from exercise of stock options
Proceeds from stock sales
Payments of principal for financing lease
Net cash provided by financing activities
Net increase (decrease) in cash and cash equivalents
Cash and cash equivalents at beginning of year
Cash and cash equivalents at end of year
Supplemental information:
Cash paid for interest
Cash paid for taxes
Pay vs Performance Disclosure [Table]
Executive Category [Axis]
Individual [Axis]
Adjustment to Compensation [Axis]
Measure [Axis]
Pay vs Performance Disclosure, Table
Company Selected Measure Name
Named Executive Officers, Footnote
Peer Group Issuers, Footnote
Changed Peer Group, Footnote
PEO Total Compensation Amount
PEO Actually Paid Compensation Amount
Adjustment To PEO Compensation, Footnote
Non-PEO NEO Average Total Compensation Amount
Non-PEO NEO Average Compensation Actually Paid Amount
Adjustment to Non-PEO NEO Compensation Footnote
Equity Valuation Assumption Difference, Footnote
Compensation Actually Paid vs. Total Shareholder Return
Compensation Actually Paid vs. Net Income
Compensation Actually Paid vs. Company Selected Measure
Total Shareholder Return Vs Peer Group
Compensation Actually Paid vs. Other Measure
Tabular List, Table
Total Shareholder Return Amount
Peer Group Total Shareholder Return Amount
Net Income (Loss)
Company Selected Measure Amount
Other Performance Measure, Amount
Adjustment to Compensation, Amount
PEO Name
Name
Non-GAAP Measure Description
Additional 402(v) Disclosure
Pension Benefits Adjustments, Footnote
Equity Awards Adjustments, Footnote
Erroneously Awarded Compensation Recovery [Table]
Restatement Determination Date [Axis]
Restatement Determination Date
Aggregate Erroneous Compensation Amount
Erroneous Compensation Analysis
Stock Price or TSR Estimation Method
Outstanding Aggregate Erroneous Compensation Amount
Aggregate Erroneous Compensation Not Yet Determined
Name
Forgone Recovery due to Expense of Enforcement, Amount
Forgone Recovery due to Violation of Home Country Law, Amount
Forgone Recovery due to Disqualification of Tax Benefits, Amount
Forgone Recovery, Explanation of Impracticability
Name
Compensation Amount
Restatement does not require Recovery
Awards Close in Time to MNPI Disclosures [Table]
Award Timing MNPI Disclosure
Award Timing Method
Award Timing Predetermined
Award Timing MNPI Considered
Award Timing, How MNPI Considered
MNPI Disclosure Timed for Compensation Value
Awards Close in Time to MNPI Disclosures, Table
Name
Underlying Securities
Exercise Price
Fair Value as of Grant Date
Underlying Security Market Price Change
Insider Trading Arrangements [Line Items]
Material Terms of Trading Arrangement
Name
Title
Rule 10b5-1 Arrangement Adopted
Non-Rule 10b5-1 Arrangement Adopted
Adoption Date
Rule 10b5-1 Arrangement Terminated
Non-Rule 10b5-1 Arrangement Terminated
Termination Date
Expiration Date
Arrangement Duration
Aggregate Available
Insider Trading Policies and Procedures [Line Items]
Insider Trading Policies and Procedures Adopted
Insider Trading Policies and Procedures Not Adopted
Cybersecurity Risk Management, Strategy, and Governance [Abstract]
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]
Cybersecurity Risk Management Processes Integrated [Flag]
Cybersecurity Risk Management Processes Integrated [Text Block]
Cybersecurity Risk Management Third Party Engaged [Flag]
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag]
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Text Block]
Cybersecurity Risk Board of Directors Oversight [Text Block]
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]
Cybersecurity Risk Role of Management [Text Block]
Cybersecurity Risk Management Positions or Committees Responsible [Flag]
Cybersecurity Risk Management Positions or Committees Responsible [Text Block]
Cybersecurity Risk Management Expertise of Management Responsible [Text Block]
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]
Material Cybersecurity Incident [Abstract]
Material Cybersecurity Incident Nature [Text Block]
Material Cybersecurity Incident Scope [Text Block]
Material Cybersecurity Incident Timing [Text Block]
Material Cybersecurity Incident Material Impact or Reasonably Likely Material Impact [Text Block]
Material Cybersecurity Incident Information Not Available or Undetermined [Text Block]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
NATURE OF OPERATIONS
LIQUIDITY AND MANAGEMENT PLANS
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Cash and Cash Equivalents [Abstract]
CASH EQUIVALENTS AND INVESTMENTS
Revenue from Contract with Customer [Abstract]
REVENUE
Earnings Per Share [Abstract]
BASIC AND DILUTED LOSS PER SHARE
Property, Plant and Equipment [Abstract]
PROPERTY AND EQUIPMENT
Leases
LEASES
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES
Equity [Abstract]
STOCKHOLDERS’ EQUITY
Segment Reporting [Abstract]
SEGMENT REPORTING
Share-Based Payment Arrangement [Abstract]
STOCK-BASED COMPENSATION
K Plan
401(k) PLAN
Income Tax Disclosure [Abstract]
INCOME TAXES
Subsequent Events [Abstract]
SUBSEQUENT EVENTS
Basis of Presentation
Fair Value of Financial Instruments
Cash, Cash Equivalents, and Short-Term Investments
Concentration of Credit Risk and Major Customers
Accounts Receivable and Unbilled Contracts Receivable
Impairment of Long-lived Assets
Property and Equipment
Revenue
Research and Development Expenses
Leases
Stock-based Compensation
Income Taxes
Use of Estimates
Subsequent Events
Adoption of Recent Accounting Standards
Recent Accounting Standards
Schedule of cash equivalents and short-term investments
Schedule of disaggregated revenue by primary geographical markets and timing of revenue recognition
Schedule of anti-dilutive shares
Schedule of property and equipment
Schedule of lease costs
Schedule of future minimum payments
Schedule of supplemental information and non-cash activity
Schedule of selected financial information
Schedule of stock-based compensation expense
Schedule of weighted-average assumptions
Schedule of stock option activity
Schedule of restricted stock activity
Schedule of restricted stock unit activity
Schedule of provision for income taxes
Schedule of deferred tax assets
Schedule of net operating losses and tax credit carryforwards
Schedule of effective tax rate
Schedule of unrecognized tax benefits
Schedule of valuation allowance
Subsidiary or Equity Method Investee, Sale of Stock, Type [Table]
Subsidiary, Sale of Stock [Line Items]
Cash, cash equivalents and short-term investments
Working capital
Stock issued new, shares
Average price per share
Proceeds from sale of stock, value
Nature of Operation, Product Information, Concentration of Risk [Table]
Product Information [Line Items]
Concentration of credit risk, percentage
Allowances for doubtful accounts
Impairment of long lives assets
Interest and penalties related to uncertain tax positions
Platform Operator, Crypto Asset [Table]
Cash and Cash Equivalents [Line Items]
Cost
Unrealized Gain/(Loss)
Accretion of Discount
Fair Value
Disaggregation of Revenue [Table]
Disaggregation of Revenue [Line Items]
Revenue
Deferred revenue
Antidilutive Security, Excluded EPS Calculation [Table]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti dilutive shares
Property, Plant and Equipment [Table]
Property, Plant and Equipment [Line Items]
Property and equipment, gross
Less: Accumulated depreciation and amortization
Property and equipment, net
Depreciation and amortization expense
Financing lease costs:
Amortization of ROU assets
Interest on lease liabilities
Total financing lease costs
Operating lease costs
Fixed lease costs
Variable lease costs
Short-term lease costs
Total operating lease costs
Schedule of Long-Term Debt Instruments [Table]
Debt Instrument [Line Items]
2026
2026
2027
2027
2028
2029
2030 & thereafter
Total future minimum lease payments
Total future minimum lease payments
Less imputed interest
Less imputed interest
Total lease liability
Total lease liability
Operating cash flow information:
Cash paid for amounts included in the measurement of operating lease liabilities
Cash paid for amounts included in the measurement of financing lease liabilities
Non-cash activity:
Right-of-use assets obtained in exchange for operating lease obligations
Remeasurement of right-of use asset and liability in financing lease obligations
DisclosureTable [Table]
DisclosureLineElements [Line Items]
ROU asset
Lease liability
Weighted average remaining discount rate for operating leases
Lessee operating lease description
Weighted average remaining discount rate for financing leases
Weighted average lease term for operating lease
Weighted average lease term for financing lease
Sale of common stock shares
Sale of common stock price per share
Proceeds from sale of stock
Remaining offering capacity
Common stock reserved for issuance
Less expenses:
Employee related expenses
Stock-based compensation
Travel and entertainment
Tool related expenses
Consulting expenses
Metrology and other outsourced research expenses
Intellectual property related expenses
Other operating items
Operating margin
Other income (expense), net
Operating segment
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table]
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense
Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Exercise price
Grant date fair value per share
Expected volatility
Weighted average expected term (in years)
Risk-free interest rate
Expected dividend yield
Number of shares outstanding, beginning balance
Weighted average exercise prices per share, beginning balance
Number of shares options, granted
Weighted average exercise prices per share, granted
Number of shares options, exercised
Weighted average exercise prices per share, exercised
Number of shares options, forfeited
Weighted average exercise prices per share, forfeited
Number of shares options, expired
Weighted average exercise prices per share, expired
Number of shares outstanding, ending balance
Weighted average exercise prices per share, ending balance
Weighted average remaining contractual term
Intrinsic value
Number of shares outstanding,exercisable
Weighted average exercise prices per share, exercisable
Weighted average remaining contractual term, exercisable
Intrinsic value, exercisable
Number of restricted stock shares, Beginning balance
Weighted average grant date fair value per share, Beginning balance
Number of restricted stock shares, vested
Weighted average grant date fair value per share, vested
Number of restricted stock shares, forfeited
Weighted average grant date fair value per share, forfeited
Number of restricted stock shares, Ending balance
weighted average grant date fair value per share, Ending balance
Number of restricted stock units shares, granted
Weighted average grant date fair value per share restricted stock unit, granted
Number of restricted stock units shares, vested
Weighted average grant date fair value per share restricted stock unit, vested
Number of restricted stock units shares, forfeited
Weighted average grant date fair value per share restricted stock unit, forfeited
Shares granted
Shares authorized for issuance
Options granted
Common stock reserved for issuance
Additional shares authorized under the plan
Unrecognized compensation expense
Unrecognized compensation weighted average period
Fair value of options issued
Company contributions to pension plan
Net loss before provision for income taxes
Deferred tax assets:
Net operating loss carryforwards
Tax credit
Fixed assets and intangibles
Stock compensation
Accruals and other
Lease liability
Capitalized research and development
Total deferred tax assets
Deferred tax liabilities:
Right of use asset
Total deferred tax assets
Valuation allowance
Net deferred tax asset
Effective Income Tax Rate Reconciliation [Table]
Effective Income Tax Rate Reconciliation [Line Items]
Net operating loss amount
Net operating loss expiration in years
Tax credits amount
Tax credits expiration in years
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount
Statutory rate
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount
State rate
Enactment of new tax laws
Enactment of new tax laws rate
Enactment of cross-border tax laws
Enactment of cross-border tax laws rate
Change in tax credits
Change in tax credits
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount
Change in valuation allowance
Stock based compensation
Stock based compensation excess windfall
Officer's compensation
Officer's compensation rate
Other
Other non-deductible items
Worldwide changes in unrecognized tax benefits
Worldwide changes in unrecognized tax benefits rate
Total
Section 162(m) limitation
Unrecognized tax benefit, beginning balance
Increases (decreases) - prior year tax positions
Increase - current year tax position
Unrecognized tax benefit, ending balance
Deferred tax asset valuation allowance, beginning balance
Additions
Deductions
Deferred tax asset valuation allowance, ending balance
Income tax expenses current
Increase in income tax valuation allowance
Accrued interest and penalities
Penalties related to uncertain tax positions
Assets, Current
Assets
Liabilities, Current
Liabilities
Equity, Attributable to Parent
Liabilities and Equity
Cost of Product and Service Sold
Gross Profit
Operating Expenses
Interest Expense, Nonoperating
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Shares, Outstanding
Stock Issued During Period, Value, Restricted Stock Award, Forfeitures
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited
Increase (Decrease) in Accounts Receivable
IncreaseDecreaseInUnbilledReceivables1
Increase (Decrease) in Accrued Interest Receivable, Net
Increase (Decrease) in Prepaid Expense and Other Assets
Increase (Decrease) in Other Accounts Payable
Increase (Decrease) in Accrued Liabilities
Increase (Decrease) in Deferred Revenue
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation
Payments to Acquire Property, Plant, and Equipment
Payments to Acquire Marketable Securities
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation
Finance Lease, Principal Payments
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Excluding Exchange Rate Effect, Including Discontinued Operation
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation
Forgone Recovery, Individual Name
Outstanding Recovery, Individual Name
Awards Close in Time to MNPI Disclosures, Individual Name
Trading Arrangement, Individual Name
Lessee, Leases [Policy Text Block]
Deferred Revenue
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Property, Plant and Equipment, Other, Net
Lease, Cost
Operating Lease, Cost
Lessee, Operating Lease, Liability, to be Paid, Year One
Lessee, Operating Lease, Liability, to be Paid, Year Two
Lessee, Operating Lease, Liability, to be Paid
Finance Lease, Liability, Undiscounted Excess Amount
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
Share-Based Payment Arrangement, Expense
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Expirations in Period
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Number
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Deferred Compensation Arrangement with Individual, Common Stock Reserved for Future Issuance
DeferredTaxAssetsTaxDeferredLeaseLiability
Deferred Tax Assets, Gross
DeferredTaxLiabilityTaxRightOfUseAsset
Deferred Tax Liabilities, Net
Deferred Tax Assets, Valuation Allowance
Effective Income Tax Rate Reconciliation, Tax Credit, Amount
Unrecognized Tax Benefits
DeferredTaxAssetsValuationAllowances