Entity Central Index Key
Cover [Abstract]
Document Type
Document Type
Amendment Flag
Amendment Flag
Document Period End Date
Document Period End Date
Document Fiscal Year Focus
Document Fiscal Year Focus
Document Fiscal Period Focus
Document Fiscal Period Focus
Trading Symbol
Trading Symbol
Entity Registrant Name
Entity Registrant Name
Entity Central Index Key
Current Fiscal Year End Date
Current Fiscal Year End Date
Entity Filer Category
Entity Filer Category
Entity Emerging Growth Company
Entity Emerging Growth Company
Entity Small Business
Entity Small Business
Entity Ex Transition Period
Entity Ex Transition Period
Entity Common Stock, Shares Outstanding
Entity Common Stock Shares Outstanding
Entity Current Reporting Status
Entity Current Reporting Status
Entity Shell Company
Entity Shell Company
Entity File Number
Entity File Number
Entity Tax Identification Number
Entity Tax Identification Number
Entity Address, Address Line One
Entity Address Address Line1
Entity Address, Address Line Two
Entity Address Address Line2
Entity Address, City or Town
Entity Address City Or Town
Entity Address, State or Province
Entity Address State Or Province
Entity Address, Postal Zip Code
Entity Address Postal Zip Code
City Area Code
City Area Code
Local Phone Number
Local Phone Number
Document Quarterly Report
Document Quarterly Report
Document Transition Report
Document Transition Report
Entity Interactive Data Current
Entity Interactive Data Current
Title of 12(b) Security
Security12b Title
Security Exchange Name
Security Exchange Name
Entity Incorporation, State or Country Code
Entity Incorporation State Country Code
Statement Of Financial Position [Abstract]
Assets
Assets [Abstract]
Current assets:
Assets Current [Abstract]
Cash and cash equivalents
Cash And Cash Equivalents At Carrying Value
Marketable securities
Marketable Securities Current
Prepaid expenses
Prepaid Expense Current
Other current assets
Other Assets Current
Total current assets
Assets Current
Property and equipment, net
Property Plant And Equipment Net
Operating lease right-of-use asset
Operating Lease Right Of Use Asset
Other assets
Other Assets Noncurrent
Total assets
Assets
Liabilities and Stockholders' Equity
Liabilities And Stockholders Equity [Abstract]
Current liabilities:
Liabilities Current [Abstract]
Accounts payable
Accounts Payable Current
Accrued liabilities
Accrued Liabilities Current
Operating lease liabilities, current
Operating Lease Liability Current
Other liabilities, current
Other Liabilities Current
Total current liabilities
Liabilities Current
Operating lease liabilities, noncurrent
Operating Lease Liability Noncurrent
Total liabilities
Liabilities
Stockholders' equity:
Stockholders Equity [Abstract]
Common stock, $0.001 par value, 125,000,000 shares authorized as of June 30, 2020 (unaudited) and December 31, 2019; 45,826,798 and 19,208,077 shares issued and outstanding as of June 30, 2020 (unaudited) and December 31, 2019, respectively
Common Stock Value
Preferred stock, $0.001 par value, 10,000,000 shares authorized, zero shares issued and outstanding as of June 30, 2020 (unaudited) and December 31, 2019
Preferred Stock Value
Additional paid-in capital
Additional Paid In Capital Common Stock
Accumulated other comprehensive income(loss)
Accumulated Other Comprehensive Income Loss Net Of Tax
Accumulated deficit
Retained Earnings Accumulated Deficit
Total stockholders' equity
Stockholders Equity
Total liabilities and stockholders' equity
Liabilities And Stockholders Equity
Common stock, par value
Common Stock Par Or Stated Value Per Share
Common stock, shares authorized
Common Stock Shares Authorized
Common stock, shares issued
Common Stock Shares Issued
Common stock, shares outstanding
Common Stock Shares Outstanding
Preferred stock, par value
Preferred Stock Par Or Stated Value Per Share
Preferred stock, shares authorized
Preferred Stock Shares Authorized
Preferred stock, shares issued
Preferred Stock Shares Issued
Preferred stock, shares outstanding
Preferred Stock Shares Outstanding
Income Statement [Abstract]
Operating expenses:
Operating Expenses [Abstract]
Research and development
Research And Development Expense
General and administrative
General And Administrative Expense
Total operating expenses
Operating Expenses
Loss from operations
Operating Income Loss
Interest income
Interest Income Expense Nonoperating Net
Net loss
Net Income Loss
Net loss per common share, basic and diluted
Earnings Per Share Basic And Diluted
Weighted-average shares used to compute net loss per common share, basic and diluted
Weighted Average Number Of Share Outstanding Basic And Diluted
Statement Of Income And Comprehensive Income [Abstract]
Net loss
Other comprehensive income (loss)
Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent [Abstract]
Foreign currency translation adjustments
Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax
Unrealized gain on marketable securities
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
Total other comprehensive income (loss), net of tax
Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
Comprehensive loss
Comprehensive Income Net Of Tax
Stock and pre-funded warrants issued during period shares through underwritten offerings.
Stock and pre-funded warrants issued during period net of offering costs value.
Issuance of shares under incentive and share based compensation plans.
Value of issuance of shares under incentive and share based compensation plans.
Adjustments to additional paid in capital, share based compensation, vesting related to shares of common stock issued pursuant to early exercises.
Statement Of Stockholders Equity [Abstract]
Statement [Table]
Statement [Table]
Equity Components
Statement Equity Components [Axis]
Equity Component
Equity Component [Domain]
Common Stock
Common Stock [Member]
Additional Paid-in Capital
Additional Paid In Capital [Member]
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income [Member]
Accumulated Deficit
Retained Earnings [Member]
Statement [Line Items]
Statement [Line Items]
Balance
Balance, shares
Shares Outstanding
Issuance of common stock and pre-funded warrants through underwritten offering
Stock And Pre Funded Warrants Issued During Period Net Of Offering Costs Value
Issuance of common stock and pre-funded warrants through underwritten offering, shares
Stock And Pre Funded Warrants Issued During Period Shares Through Underwritten Offerings
Issuance of common stock under employee stock incentive plans
Value Of Issuance Of Shares Under Incentive And Share Based Compensation Plans
Issuance of common stock under employee stock incentive plans, shares
Issuance Of Shares Under Incentive And Share Based Compensation Plans
Vesting related to shares of common stock issued pursuant to early exercises
Adjustments To Additional Paid In Capital Share Based Compensation Vesting Related To Shares Of Common Stock Issued Pursuant To Early Exercises
Stock-based compensation expense
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
Other comprehensive income (loss)
Balance
Balance, shares
Issuance of common stock and pre-funded warrants through underwritten offerings, offering costs
Adjustments To Additional Paid In Capital Stock Issued Issuance Costs
Increase decrease accounts payable accrued liabilities and other current liabilities.
Proceeds from issuance of common stock and pre-funded warrants in underwritten offerings, net of offering costs.
Reclassification of employee stock liability to equity upon vesting.
Unpaid offering costs in accrued liabilities.
Statement Of Cash Flows [Abstract]
Cash flows from operating activities:
Net Cash Provided By Used In Operating Activities [Abstract]
Net loss
Profit Loss
Adjustments to reconcile net loss to net cash used in operating activities:
Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract]
Depreciation and amortization
Depreciation Depletion And Amortization
Stock-based compensation
Share Based Compensation
Amortization of premiums and discounts on marketable securities
Accretion Amortization Of Discounts And Premiums Investments
Changes in operating assets and liabilities
Increase Decrease In Operating Capital [Abstract]
Prepaid expenses, other current assets and other long-term assets
Increase Decrease In Prepaid Deferred Expense And Other Assets
Accounts payable, accrued liabilities and other current liabilities
Increase Decrease Accounts Payable Accrued Liabilities And Other Current Liabilities
Operating lease liabilities
Operating Lease Payments
Net cash used in operating activities
Net Cash Provided By Used In Operating Activities
Cash flows from investing activities:
Net Cash Provided By Used In Investing Activities [Abstract]
Purchases of property and equipment
Payments To Acquire Property Plant And Equipment
Purchases of marketable securities
Payments To Acquire Marketable Securities
Maturities of marketable securities
Proceeds From Sale And Maturity Of Marketable Securities
Net cash (used in) provided by investing activities
Net Cash Provided By Used In Investing Activities
Cash flows from financing activities:
Net Cash Provided By Used In Financing Activities [Abstract]
Proceeds from sale of common stock and pre-funded warrants in underwritten offerings, net of offering costs
Proceeds From Issuance Of Common Stock And Pre Funded Warrants In Underwritten Offerings Net Of Offering Costs
Proceeds from issuance of common stock under employee stock incentive plans
Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans
Net cash provided by financing activities
Net Cash Provided By Used In Financing Activities
Effect of exchange rate changes on cash and cash equivalents
Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
Net increase (decrease) in cash and cash equivalents
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
Cash and cash equivalents at the beginning of period
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
Cash and cash equivalents at the end of period
Supplemental disclosures of noncash investing and financing information:
Noncash Investing And Financing Items [Abstract]
Reclassification of employee stock liability to equity upon vesting
Reclassification Of Employee Stock Liability To Equity Upon Vesting
Purchase of property and equipment in accounts payable
Capital Expenditures Incurred But Not Yet Paid
Unpaid offering costs in accrued liabilities
Unpaid Offering Costs In Accrued Liabilities
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Organization and Description of the Business
Business Description And Basis Of Presentation [Text Block]
Accounting Policies [Abstract]
Summary of Significant Accounting Policies
Significant Accounting Policies [Text Block]
Fair Value Disclosures [Abstract]
Fair Value Measurements
Fair Value Disclosures [Text Block]
The entire disclosure for available for sale securities.
Investments Debt And Equity Securities [Abstract]
Available-for-Sale Securities
Available For Sale Securities Disclosure [Text Block]
Balance Sheet Components
Supplemental Balance Sheet Disclosures [Text Block]
Leases [Abstract]
Lease
Lessee Operating Leases [Text Block]
Equity [Abstract]
Pre-Funded Warrants
Stockholders Equity Note Disclosure [Text Block]
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation
Disclosure Of Compensation Related Costs Share Based Payments [Text Block]
Income Tax Disclosure [Abstract]
Income Taxes
Income Tax Disclosure [Text Block]
Earnings Per Share [Abstract]
Net Loss Per Share
Earnings Per Share [Text Block]
Subsequent Events [Abstract]
Subsequent Event
Subsequent Events [Text Block]
Basis of presentation and consolidation
Basis Of Accounting Policy Policy [Text Block]
Unaudited interim condensed consolidated financial statements.
Unaudited Interim Condensed Consolidated Financial Statements
Unaudited Interim Condensed Consolidated Financial Statements Policy [Text Block]
Use of Estimates
Use Of Estimates
Significant risks and uncertainties policy.
Significant Risks and Uncertainties
Significant Risks And Uncertainties Policy Policy [Text Block]
Cash and Cash Equivalents
Cash And Cash Equivalents Policy [Text Block]
Marketable Securities
Marketable Securities Policy
Leases
Lessee Leases Policy [Text Block]
Accounting Pronouncements Adopted in 2020
New Accounting Pronouncements Policy Policy [Text Block]
Fair Value Measurements
Fair Value Measurement Policy Policy [Text Block]
Summary of Financial Assets Measured at Fair Value on a Recurring Basis
Fair Value Assets Measured On Recurring Basis [Text Block]
Summary of Available-For-Sale Securities Recorded in Cash and Cash Equivalents or Marketable Securities
Debt Securities Available For Sale Table [Text Block]
Summary of Gross Unrealized Losses and Fair Value by Major Security Type for Available-For-Sale Securities in Unrealized Loss Position
Debt Securities Available For Sale Unrealized Loss Position Fair Value Table [Text Block]
Summary of Amortized Cost and Estimated Fair Value of Available-for-sale Securities by Contractual Maturity
Investments Classified By Contractual Maturity Date Table [Text Block]
Property and Equipment
Property Plant And Equipment [Text Block]
Accrued Liabilities
Schedule Of Accrued Liabilities Table [Text Block]
Schedule of right of use assets and lease liabilities table textblock.
Details of Right-of-Use Assets and Lease Liabilities
Schedule Of Right Of Use Assets And Lease Liabilities Table [Text Block]
Summary of Pre-Funded Warrants Outstanding
Schedule Of Stockholders Equity Note Warrants Or Rights [Text Block]
Summary of Activity under Stock Option Plans and Related Information
Schedule Of Share Based Compensation Stock Options Activity Table [Text Block]
Stock-Based Compensation Expense Recognized
Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Text Block]
Fair Value of Employee Stock Options Granted is Calculated Using Black Scholes Option Pricing Model with Range of Assumptions
Schedule Of Share Based Payment Award Stock Options Valuation Assumptions Table [Text Block]
Calculation of Basic and Diluted Net Loss per Share
Schedule Of Earnings Per Share Basic And Diluted Table [Text Block]
Anti-dilutive Outstanding Shares of Common Stock Equivalents Excluded from Computation of Diluted Net Loss per Share
Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Text Block]
Organization and description of business.
Organization and description of business.
Organization And Description Of Business [Table]
Organization And Description Of Business [Table]
Statistical Measurement
Range [Axis]
Statistical Measurement
Range [Member]
Minimum
Minimum [Member]
Maximum
Maximum [Member]
Collaborative Arrangement and Arrangement Other than Collaborative
Type Of Arrangement [Axis]
Collaborative Arrangement and Arrangement Other than Collaborative
Arrangements And Nonarrangement Transactions [Member]
Open market sale agreement.
ATM Agreement
Open Market Sale Agreement [Member]
Counterparty Name
Counterparty Name [Axis]
Counterparty Name
Repurchase Agreement Counterparty Name [Domain]
Jefferies limited liability company.
Jefferies, LLC
Jefferies Limited Liability Company [Member]
Sale of Stock
Subsidiary Sale Of Stock [Axis]
Sale of Stock
Sale Of Stock Name Of Transaction [Domain]
Underwritten public offering.
Underwritten Public Offering
Underwritten Public Offering [Member]
Title of Individual
Title Of Individual [Axis]
Title of Individual
Title Of Individual With Relationship To Entity [Domain]
Existing stockholder, ventures, officers and directors.
Existing Stockholder, Morningside Ventures and certain officers and directors
Existing Stockholder Ventures Officers And Directors [Member]
Subsequent Event Type
Subsequent Event Type [Axis]
Subsequent Event Type
Subsequent Event Type [Domain]
Subsequent Event
Subsequent Event [Member]
Existing stockholder, equal talent investments limited and directors.
Existing Stockholder, Equal Talent Investments Limited, and one of the Directors
Existing Stockholder Equal Talent Investments Limited And Directors [Member]
Organization And Description Of Business [Line Items]
Organization And Description Of Business [Line Items]
Number of operating segments
Number Of Operating Segments
Sufficient cash and cash equivalents available period term.
Accumulated deficit
Sufficient cash and cash equivalents available period term
Sufficient Cash And Cash Equivalents Available Period Term
Common stock aggregate offering price.
Securities unsold and available for issuance.
Common stock aggregate offering price
Common Stock Aggregate Offering Price
Issuance of common stock
Stock Issued During Period Shares New Issues
Securities unsold and available for issuance
Securities Unsold And Available For Issuance
Warrant issue price per share.
Pre funded warrants to purchase shares of common stock
Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights
Pre funded warrants exercise price
Class Of Warrant Or Right Exercise Price Of Warrants Or Rights1
Common stock, shares issued, price per share
Shares Issued Price Per Share
Warrant issue price per share
Warrant Issue Price Per Share
Net proceeds from the public offering
Proceeds From Issuance Of Common Stock
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table]
Measurement Frequency
Fair Value By Measurement Frequency [Axis]
Measurement Frequency
Fair Value Measurement Frequency [Domain]
Fair Value, Measurements, Recurring
Fair Value Measurements Recurring [Member]
Asset Class
Fair Value By Asset Class [Axis]
Asset Class
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation By Asset Class [Domain]
Money Market Funds
Money Market Funds [Member]
U.S. Treasury Securities
U S Treasury Securities [Member]
Commercial paper
Commercial Paper [Member]
Corporate debt securities
Corporate Debt Securities [Member]
U.S. agency bonds
U S Government Agencies Debt Securities [Member]
Level 2
Fair Value By Fair Value Hierarchy Level [Axis]
Fair Value Hierarchy and NAV
Fair Value Measurements Fair Value Hierarchy [Domain]
Level 1
Fair Value Inputs Level1 [Member]
Level 2
Fair Value Inputs Level2 [Member]
Level 3
Fair Value Inputs Level3 [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Financial Assets
Assets Fair Value Disclosure
U.S. agency bonds
Amortized Cost
Available For Sale Debt Securities Amortized Cost Basis
Unrealized Gains
Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax
Unrealized Losses
Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax
Fair Value
Available For Sale Securities Debt Securities
Allowance for credit losses on securities in unrealized loss position
Debt Securities Available For Sale Allowance For Credit Loss
Fair Value
Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months
Unrealized Losses
Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss
Sale of available-for-sale securities
Proceeds From Sale Of Available For Sale Securities Debt
Available-for-sale securities maturing, Amortized Cost
Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis [Abstract]
In one year or less, Amortized Cost
Available For Sale Securities Debt Maturities Within One Year Amortized Cost
Available-for-sale securities maturing, Estimated Fair Value:
Available For Sale Securities Debt Maturities Single Maturity Date [Abstract]
In one year or less, Estimated Fair Value
Available For Sale Securities Debt Maturities Within One Year Fair Value
Total available-for-sale securities, Estimated Fair Value
Schedule Of Property Plant And Equipment [Table]
Schedule Of Property Plant And Equipment [Table]
Long-Lived Tangible Asset
Property Plant And Equipment By Type [Axis]
Long-Lived Tangible Asset
Property Plant And Equipment Type [Domain]
Leasehold Improvements
Leasehold Improvements [Member]
Furniture, laboratory and office equipment.
Furniture, Laboratory and Office Equipment
Furniture Laboratory And Office Equipment [Member]
Computer Equipment
Computer Equipment [Member]
Property Plant And Equipment [Line Items]
Property Plant And Equipment [Line Items]
Total property and equipment
Property Plant And Equipment Gross
Less accumulated depreciation and amortization
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Property and equipment, net
Depreciation expense
Depreciation
Accrued preclinical and research costs, current.
Accrued clinical costs, current.
Accrued preclinical and research costs
Accrued Preclinical And Research Costs Current
Accrued clinical costs
Accrued Clinical Costs Current
Accrued employee-related costs
Employee Related Liabilities Current
Accrued professional services
Accrued Professional Fees Current
Other
Other Accrued Liabilities Current
Total accrued liabilities
Lessee Disclosure [Abstract]
Geographical
Statement Geographical [Axis]
Geographical
Segment Geographical [Domain]
South san Francisco, California.
South San Francisco, California [Member]
South San Francisco California [Member]
Area of lease
Land Subject To Ground Leases
Lease expiration date
Lease Expiration Date1
Operating lease existence of option to extend [true false]
Lessee Operating Lease Existence Of Option To Extend
Operating lease, option to extend
Lessee Operating Lease Option To Extend
Operating lease, renewal term
Lessee Operating Lease Renewal Term
Weighted average remaining lease term
Operating Lease Weighted Average Remaining Lease Term1
Operating lease liability, weighted average discount rate
Operating Lease Weighted Average Discount Rate Percent
Cash paid for operating lease liabilities
Operating lease costs
Operating Lease Cost
Variable lease costs
Variable Lease Cost
2020
Lessee Operating Lease Liability Payments Remainder Of Fiscal Year
2021
Lessee Operating Lease Liability Payments Due Year Two
2022
Lessee Operating Lease Liability Payments Due Year Three
2023
Lessee Operating Lease Liability Payments Due Year Four
2024
Lessee Operating Lease Liability Payments Due Year Five
Thereafter
Lessee Operating Lease Liability Payments Due After Year Five
Total undiscounted lease payments
Lessee Operating Lease Liability Payments Due
Less: imputed interest
Lessee Operating Lease Liability Undiscounted Excess Amount
Total lease liabilities
Operating Lease Liability
Total operating lease liabilities
Class Of Warrant Or Right [Table]
Class Of Warrant Or Right [Table]
Class Of Warrant Or Right [Line Items]
Class Of Warrant Or Right [Line Items]
Maximum ownership percentage of holders upon exercise of warrants.
Maximum ownership percentage allowed to be increased or decreased by warrant holders upon prior notice.
Class of warrants or rights, exercised.
Maximum ownership percentage, not to exceed upon exercise of warrants
Maximum Ownership Percentage Of Holders Upon Exercise Of Warrants
Maximum ownership percentage, increase or decrease upon prior notice
Maximum Ownership Percentage Allowed To Be Increased Or Decreased By Warrant Holders Upon Prior Notice
Pre-funded warrants exercised
Class Of Warrants Or Rights Exercised
Class of warrant or rights expiration date.
Issue Date
Class Of Warrant Or Righst Date From Which Warrants Or Rights Exercisable
Exercise Price
Expiration Date
Class Of Warrant Or Rights Expiration Date
Number of shares underlying warrants
Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]
Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]
Plan Name
Plan Name [Axis]
Plan Name
Plan Name [Domain]
Two thousand eighteen equity incentive plan.
2018 Equity Incentive Plan
Two Thousand Eighteen Equity Incentive Plan [Member]
Award Type
Award Type [Axis]
Award Type
Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain]
Employee options
Employee Stock Option [Member]
Incentive stock options.
Incentive Stock Options
Incentive Stock Options [Member]
Two thousand fifteen equity incentive plan.
2015 Equity Incentive Plan
Two Thousand Fifteen Equity Incentive Plan [Member]
Two thousand eighteen employee stock purchase plan.
2018 Employee Stock Purchase Plan
Two Thousand Eighteen Employee Stock Purchase Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options shares outstanding
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
Shares available for future issuance
Common Stock Capital Shares Reserved For Future Issuance
Share based compensation arrangement by share based payment award number of shares increase automatically through every year on specified date.
Share based compensation arrangement by share based payment award number of shares increase automatically continuing through maximum period.
Increase in number of shares reserved for issuance as percentage of total number of shares of capital stock outstanding on last date of preceding calendar year.
Maximum number of shares authorized available for issuance
Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized
Number of shares will increase automatically through every year on specified date
Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Increase Automatically Through Every Year On Specified Date
Number of shares increase automatically continuing through maximum period
Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Increase Automatically Continuing Through Maximum Period
Increase in number of shares reserved for issuance as percentage of total number of shares of capital stock outstanding on last date of preceding calendar year
Increase In Number Of Shares Reserved For Issuance As Percentage Of Total Number Of Shares Of Capital Stock Outstanding On Last Date Of Preceding Calendar Year
Maximum number of shares issued upon exercise of incentive stock options
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number
Options to purchase of common stock outstanding.
Options granted expiry period
Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period
Vesting period
Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1
Options to purchase of common stock outstanding
Options To Purchase Of Common Stock Outstanding
Share based compensation arrangement by share based payment award annual increase in number of common stock shares percent.
Share based compensation arrangement by share based payment award annual increase in number of common stock shares.
Share based compensation arrangement by share based payment award initially authorized period start.
Share based compensation arrangement by share based payment award initially authorized period end.
Share based compensation arrangement by share based payment award subsequently authorized additional period start.
Percentage of annual increase in number of common stock shares
Share Based Compensation Arrangement By Share Based Payment Award Annual Increase In Number Of Common Stock Shares Percent
Annual increase in number of common stock shares
Share Based Compensation Arrangement By Share Based Payment Award Annual Increase In Number Of Common Stock Shares
Option price per share of common stock at fair market value
Sharebased Compensation Arrangement By Sharebased Payment Award Purchase Price Of Common Stock Percent
Authorized an offering beginning period
Share Based Compensation Arrangement By Share Based Payment Award Initially Authorized Period Start
Authorized an offering ending period
Share Based Compensation Arrangement By Share Based Payment Award Initially Authorized Period End
Authorized an additional offering beginning period
Share Based Compensation Arrangement By Share Based Payment Award Subsequently Authorized Additional Period Start
Share based compensation arrangement by share based payment award options vested and exercisable number.
Number of options outstanding, Outstanding, Beginning balance
Number of options outstanding, Options granted
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross
Number of options outstanding, Options exercised
Stock Issued During Period Shares Stock Options Exercised
Number of options outstanding, Options cancelled
Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period
Number of options outstanding, Outstanding, Ending balance
Number of options outstanding, options vested and exercisable
Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Exercisable Number
Share based compensation arrangement by share based payment award options vested and exercisable weighted average exercise price.
Weighted average exercise price, Outstanding, Beginning balance
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
Weighted average exercise price, Options granted
Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price
Weighted average exercise price, Options exercised
Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price
Weighted average exercise price, Options cancelled
Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price
Weighted average exercise price, Outstanding, Ending balance
Weighted average exercise price, options vested and exercisable
Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Exercisable Weighted Average Exercise Price
Sharebased compensation arrangement by sharebased payment award options vested and exercisable weighted average remaining contractual term.
Weighted average remaining contractual term, (Years) Outstanding, Beginning balance
Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2
Weighted average remaining contractual term, (Years) options vested and exercisable
Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Exercisable Weighted Average Remaining Contractual Term
Sharebased compensation arrangement by sharebased payment award options vested and exercisable intrinsic value.
Aggregate intrinsic value, Outstanding, Beginning balance
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value
Aggregate intrinsic value, Options exercised
Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
Aggregate intrinsic value, Outstanding, Ending balance
Aggregate intrinsic value, options vested and exercisable
Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Exercisable Intrinsic Value
Weighted average grant date fair value of options granted
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value
Aggregate intrinsic value of exercised stock options
Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table]
Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table]
Income Statement Location
Income Statement Location [Axis]
Income Statement Location
Income Statement Location [Domain]
Research and Development Expense
Research And Development Expense [Member]
General and Administrative Expense
General And Administrative Expense [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation expense
Allocated Share Based Compensation Expense
Unrecognized stock-based compensation cost
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options
Estimated weighted average amortization period
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1
Expected term (years)
Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1
Expected volatility
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate
Expected volatility, Minimum
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum
Expected volatility, Maximum
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum
Risk-free interest rate
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate
Risk-free interest rate, Minimum
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum
Risk-free interest rate, Maximum
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum
Expected dividend yield
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate
Provision for income taxes
Income Tax Expense Benefit
Research and development tax credit utilized as reduction of payroll expenses.
Research and development tax credit maximum utilization against employer's portion of payroll tax.
Research and development tax credit utilized as reduction of payroll expenses
Research And Development Tax Credit Utilized As Reduction Of Payroll Expenses
Research and development tax credit utilized against employer's portion of payroll tax
Research And Development Tax Credit Maximum Utilization Against Employers Portion Of Payroll Tax
Numerator:
Net Income Loss Available To Common Stockholders Basic [Abstract]
Denominator:
Weighted Average Number Of Shares Outstanding [Abstract]
Weighted-average shares of common stock outstanding
Weighted Average Number Of Diluted Shares Outstanding
Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table]
Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table]
Antidilutive Securities
Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities [Axis]
Antidilutive Securities, Name
Antidilutive Securities Name [Domain]
Stock Options to Purchase Common Stock
Stock that is subordinate to all other stock of the issuer.
Common stock subject to future vesting [Member]
Common Stock Subject To Future Vesting [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from computation of diluted net loss per share
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
Subsequent Event [Table]
Subsequent Event [Table]
Subsequent Event [Line Items]
Subsequent Event [Line Items]