Entity Central Index Key Document and entity information. Document And Entity Information [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 Well-known Seasoned Issuer Entity Well Known Seasoned Issuer Entity Current Reporting Status Entity Current Reporting Status Entity Voluntary Filers Entity Voluntary Filers Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Entity Public Float Entity Public Float Statement Of Financial Position [Abstract] ASSETS Assets [Abstract] Current assets: Assets Current [Abstract] Cash and cash equivalents Cash And Cash Equivalents At Carrying Value Investments Short Term Investments Grants receivable Grants Receivable Current Prepaid and other current assets Prepaid Expense And Other Assets Current Total current assets Assets Current Investments Long Term Investments Property and equipment, net Property Plant And Equipment Net Intangible assets, net Intangible Assets Net Excluding Goodwill Grants receivable Grants Receivable Noncurrent 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 and other liabilities Accrued Liabilities And Other Liabilities Total current liabilities Liabilities Current Total liabilities Liabilities Stockholders' equity: Stockholders Equity [Abstract] Common stock, par value $.001 per share, 150,000 shares authorized; 16,491 and 14,082 shares issued;16,476 and 14,082 shares outstanding at June 30, 2015 and June 30, 2014, respectively Common Stock Value Additional paid-in capital Additional Paid In Capital Common Stock 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 Income Statement [Abstract] Statement [Table] Statement [Table] Statement Class Of Stock Statement Class Of Stock [Axis] Class Of Stock Class Of Stock [Domain] Series B purchase rights. Series B Purchase Rights [Member] Series B Purchase Rights [Member] Statement [Line Items] Statement [Line Items] Revenue: Revenues [Abstract] Grant revenue Revenue From Grants Sponsored research and other revenue Research And Development Arrangement Contract To Perform For Others Compensation Earned Total revenue Revenues 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 Other income (expense): Nonoperating Income Expense [Abstract] Investment income, net Investment Income Net Interest expense Interest Expense Fair value adjustments Fair Value Adjustment Of Warrants Other expense Other Nonoperating Income Expense Total other income (expense), net Nonoperating Income Expense Net loss Net Income Loss Net loss per share, basic and diluted Earnings Per Share Basic And Diluted Weighted average shares outstanding, basic and diluted Weighted Average Number Of Share Outstanding Basic And Diluted Number of warrants (shares) exercised during the current period. Statement Of Stockholders Equity [Abstract] Statement Equity Components Statement Equity Components [Axis] Equity Component Equity Component [Domain] Common Stock [Member] Common Stock [Member] Additional Paid-in Capital [Member] Additional Paid In Capital [Member] Accumulated Deficit [Member] Retained Earnings [Member] Beginning balance Beginning balance, shares Shares Outstanding Beneficial conversion of notes payable to preferred stock Adjustments To Additional Paid In Capital Convertible Debt With Conversion Feature Issuance of common stock, net of issuance costs Stock Issued During Period Value New Issues Issuance of common stock, net of issuance costs, shares Reclassification of warrants to purchase stock to additional paid-in capital Adjustments To Additional Paid In Capital Warrant Issued Conversion of convertible preferred stock to common stock Stock Issued During Period Value Conversion Of Convertible Securities Conversion of convertible preferred stock to common stock, shares Stock Issued During Period Shares Conversion Of Convertible Securities Share-based compensation expense Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value Shares issued under employee plans Stock Issued During Period Value Employee Stock Ownership Plan Shares issued under employee plans, shares Stock Issued During Period Shares Employee Stock Ownership Plan Exercise of warrants Stock Issued During Period Value Stock Options Exercised Exercise of warrants, shares Warrants Exercised Net loss Ending balance Ending balance, shares The amount represents warrants to purchase shares of preferred stock that were converted into warrants to purchase shares of common stock during the period. Statement Of Cash Flows [Abstract] Convertible Preferred Stock [Member] Convertible Preferred Stock [Member] Series B three convertible preferred stock. Series B-3 Convertible Preferred Stock [Member] Series B Three Convertible Preferred Stock [Member] Series B one convertible preferred stock. Series B-1 Convertible Preferred Stock [Member] Series B One Convertible Preferred Stock [Member] Series B two convertible preferred stock. Series B-2 Convertible Preferred Stock [Member] Series B Two Convertible Preferred Stock [Member] Cash flows from operating activities Net Cash Provided By Used In Operating Activities Continuing Operations [Abstract] 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] Share-based compensation expense Share Based Compensation Depreciation and amortization Depreciation Depletion And Amortization Fair value adjustments Changes in operating assets and liabilities: Increase Decrease In Operating Capital [Abstract] (Increase) decrease in grants receivable Increase Decrease In Receivables Decrease (increase) in prepaid and other assets Increase Decrease In Prepaid Deferred Expense And Other Assets Increase in accounts payable Increase Decrease In Accounts Payable (Decrease) increase in deferred revenues Increase Decrease In Deferred Revenue Increase (decrease) in accrued and other liabilities Increase Decrease In Accrued Liabilities And Other Operating Liabilities Net cash used in operating activities Net Cash Provided By Used In Operating Activities Continuing Operations Cash flows from investing activities Net Cash Provided By Used In Investing Activities Continuing Operations [Abstract] Purchase of property and equipment Payments To Acquire Property Plant And Equipment Purchase of and capitalized costs related to intangible assets Payments To Acquire Intangible Assets Maturity of investments Proceeds From Sale Maturity And Collections Of Investments Purchase of investments Payments To Acquire Assets Investing Activities Net cash provided by (used in) investing activities Net Cash Provided By Used In Investing Activities Continuing Operations Cash flows from financing activities Net Cash Provided By Used In Financing Activities Continuing Operations [Abstract] Proceeds from issuance of common stock, net of issuance costs Proceeds From Issuance Of Common Stock Proceeds from exercise of common stock options Proceeds From Stock Options Exercised Proceeds from issuance of preferred stock and Series B purchase rights, net of issuance costs Proceeds From Issuance Of Preferred Stock And Preference Stock Proceeds from exercise of convertible preferred stock warrants Proceeds From Issuance Of Preferred Stock Preference Stock And Warrants Proceeds from issuance of bank term note and warrants Proceeds From Issuance Of Long Term Debt And Capital Securities Net Payment of bank term notes and capital lease Repayments Of Debt And Capital Lease Obligations Net cash provided by financing activities Net Cash Provided By Used In Financing Activities Continuing Operations Net increase (decrease) in cash and cash equivalents Cash And Cash Equivalents Period Increase Decrease Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Supplemental disclosure of cash flow information Supplemental Cash Flow Information [Abstract] Cash paid for interest Interest Paid Supplemental disclosure of non-cash financing activities Noncash Investing And Financing Items [Abstract] Conversion of convertible preferred stock to common stock Conversion Of Stock Amount Converted1 Conversion of preferred stock warrants to common stock warrants Conversion Of Preferred Stock Warrant To Common Stock Warrant Conversion of notes payable and accrued interest Series B-1 convertible preferred stock Debt Conversion Converted Instrument Amount1 Accounting Policies [Abstract] Organization and Operations Nature Of Operations Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Investments Schedule [Abstract] Investments Investment [Text Block] Fair Value Disclosures [Abstract] Fair Value Measurements Fair Value Disclosures [Text Block] Property Plant And Equipment [Abstract] Property and Equipment, Net Property Plant And Equipment Disclosure [Text Block] Goodwill And Intangible Assets Disclosure [Abstract] Intangible Assets, Net Intangible Assets Disclosure [Text Block] Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] Share-based Compensation Plans Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Commitments And Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments And Contingencies Disclosure [Text Block] Income Tax Disclosure [Abstract] Income Taxes Income Tax Disclosure [Text Block] Payables And Accruals [Abstract] Accrued Expenses Accounts Payable And Accrued Liabilities Disclosure [Text Block] Compensation And Retirement Disclosure [Abstract] Defined Contribution Plan Pension And Other Postretirement Benefits Disclosure [Text Block] Equity [Abstract] Common Stock and Stockholders’ Equity Stockholders Equity Note Disclosure [Text Block] Quarterly Financial Information Disclosure [Abstract] Quarterly Financial Information Quarterly Financial Information [Text Block] Subsequent Events [Abstract] Subsequent Events Subsequent Events [Text Block] Valuation And Qualifying Accounts [Abstract] Schedule II-Valuation and Qualifying Accounts Schedule Of Valuation And Qualifying Accounts Disclosure [Text Block] Basis of Presentation Basis Of Accounting Policy Policy [Text Block] Segment Reporting Segment Reporting Policy Policy [Text Block] Use of estimates Use Of Estimates Cash and cash equivalents Cash And Cash Equivalents Policy [Text Block] Investments Investment Policy [Text Block] Concentrations of Credit Risk Concentration Risk Credit Risk Inventory Inventory Policy [Text Block] Fair value of financial instruments Fair Value Of Financial Instruments Policy Property and equipment Property Plant And Equipment Policy [Text Block] Intangible assets Intangible Assets Finite Lived Policy Impairment of long-lived assets Impairment Or Disposal Of Long Lived Assets Policy [Text Block] Revenue Recognition Revenue Recognition Policy [Text Block] Income taxes Income Tax Policy [Text Block] Research and Development Expenses Research And Development Expense Policy Share-Based Compensation Share Based Compensation Option And Incentive Plans Policy Net loss per share Earnings Per Share Policy [Text Block] Comprehensive Loss Comprehensive Income Policy Policy [Text Block] New Accounting Pronouncements New Accounting Pronouncements Policy Policy [Text Block] Certificates of deposit. Certificates of Deposit Certificates Of Deposit Policy [Text Block] Debt securities - held-to-maturity Marketable Securities Held To Maturity Securities Policy Summary of the Company's Investments Investments Classified By Contractual Maturity Date Table [Text Block] Summary of Debt Securities Held-to-Maturity Unrealized Gain Loss On Investments Table [Text Block] Summary of Amortized Cost and Fair Value of Held-to-Maturity Debt Securities Held To Maturity Securities [Text Block] Schedule of Major Category of Company's Financial Assets and Liabilities Measured at Fair Value on Recurring Basis Schedule Of Fair Value Assets And Liabilities Measured On Recurring Basis Table [Text Block] Components of Property and Equipment Property Plant And Equipment [Text Block] Schedule of Intangible Assets Subject to Amortization Schedule Of Finite Lived Intangible Assets Table [Text Block] Schedule of Estimated Amortization Expense Finite Lived Intangible Assets Amortization Expense Table [Text Block] Summary of Stock Option Activity Schedule Of Share Based Compensation Employee Stock Purchase Plan Activity Table [Text Block] Summary of Stock Options Outstanding and Exercisable Schedule Of Share Based Compensation Shares Authorized Under Stock Option Plans By Exercise Price Range [Text Block] Summary of Total Share-based Expense Associated with Stock Options and Restricted Shares Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Text Block] Stock Option Pricing Model Assumption Schedule Of Share Based Payment Award Stock Options Valuation Assumptions Table [Text Block] Future Annual Minimum Lease Payments Under Non-Cancelable Operating Leases Schedule Of Future Minimum Rental Payments For Operating Leases Table [Text Block] Significant Components of Deferred Tax Assets (Liabilities) Schedule Of Deferred Tax Assets And Liabilities Table [Text Block] Reconciliation of Income Tax Expense Schedule Of Effective Income Tax Rate Reconciliation Table [Text Block] Schedule of Accrued Expenses Schedule Of Accrued Liabilities Table [Text Block] Schedule of Shares of Common Stock Reserved for Future Issuance Schedule Of Stockholders Equity Table [Text Block] Summary of Quarterly Information Schedule Of Quarterly Financial Information Table [Text Block] Represents the date on which the company's initial public offering was completed. Organization Consolidation And Presentation Of Financial Statements [Abstract] Summary of organization and operations. Summary of organization and operations. Summary Of Organization And Operations [Table] Summary Of Organization And Operations [Table] Subsidiary Sale Of Stock Subsidiary Sale Of Stock [Axis] Sale Of Stock Name Of Transaction Sale Of Stock Name Of Transaction [Domain] IPO [Member] I P O [Member] Follow on public offerings. Follow on Public Offerings [Member] Follow On Public Offerings [Member] Underwritten follow on offering. Underwritten Follow On Offering [Member] Underwritten Follow On Offering [Member] Summary Of Organization And Operations [Line Items] Summary Of Organization And Operations [Line Items] Initial public offering closing date Initial Public Offering Completion Date Common stock, share price Shares Issued Price Per Share Aggregate net proceeds received The aggregate value of the company's cash, cash equivalents and total investments available at the end of the reporting period. Cash, cash equivalents and short-term and long term investments Cash Cash Equivalents And Short Term And Long Term Investment New Accounting Pronouncements Or Change In Accounting Principle [Table] New Accounting Pronouncements Or Change In Accounting Principle [Table] Range Range [Axis] Range Member Range [Member] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Balance Sheet Location Balance Sheet Location [Axis] Balance Sheet Location Balance Sheet Location [Domain] Research and development-related [Member] Research And Development Expense [Member] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements Or Change In Accounting Principle [Line Items] Number of operating segments Number Of Operating Segments Property and equipment, estimated useful lives Property Plant And Equipment Useful Life Estimated useful life of intangible assets Finite Lived Intangible Asset Useful Life Impairment charges Asset Impairment Charges Advance payments Prepaid Expense Current Certificates of deposit at carrying value noncurrent. Investments - Current: Short Term Investments [Abstract] Certificates of deposit Certificates Of Deposit At Carrying Value Debt securities - held-to-maturity Held To Maturity Securities Current Total Investments Current Investments - Noncurrent: Long Term Investments [Abstract] Certificates of deposit Certificates Of Deposit At Carrying Value Non Current Debt securities - held-to-maturity Held To Maturity Securities Noncurrent Total Investments Noncurrent Schedule Of Held To Maturity Securities [Table] Schedule Of Held To Maturity Securities [Table] Major Types Of Debt And Equity Securities Major Types Of Debt And Equity Securities [Axis] Major Types Of Debt And Equity Securities Major Types Of Debt And Equity Securities [Domain] US Government and Agencies Obligations [Member] U S Government Agencies Debt Securities [Member] Corporate Obligations [Member] Corporate Debt Securities [Member] Schedule Of Fair Value Of Separate Accounts By Major Category Of Investment Schedule Of Fair Value Of Separate Accounts By Major Category Of Investment [Axis] Schedule Of Fair Value Of Separate Accounts By Major Category Of Investment Category Schedule Of Fair Value Of Separate Accounts By Major Category Of Investment Category [Domain] Investments - Current [Member] Short Term Investments [Member] Long term investments. Investments - Noncurrent [Member] Long Term Investments [Member] Investment Schedule Of Held To Maturity Securities [Line Items] Amortized Cost Held To Maturity Securities Gross Unrealized Gains Held To Maturity Securities Accumulated Unrecognized Holding Gain Gross Unrealized Losses Held To Maturity Securities Accumulated Unrecognized Holding Loss Fair Value Held To Maturity Securities Fair Value Held to maturity securities debt maturities after one through two years fair value. Amortized cost due in one year or less Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount Amortized cost due after one year through two years Total amortized cost Held To Maturity Securities Debt Maturities Single Maturity Date Amortized Cost Basis Fair value due in one year or less Held To Maturity Securities Debt Maturities Within One Year Fair Value Fair value due after one year through two years Held To Maturity Securities Debt Maturities After One Through Two Years Fair Value Total fair value Held To Maturity Securities Debt Maturities Single Maturity Date Fair Value Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Fair Value By Measurement Frequency Fair Value By Measurement Frequency [Axis] Fair Value Measurement Frequency Fair Value Measurement Frequency [Domain] Fair Value on a Recurring Basis [Member] Fair Value Measurements Recurring [Member] Fair Value By Fair Value Hierarchy Level Fair Value By Fair Value Hierarchy Level [Axis] Fair Value Measurements Fair Value Hierarchy Fair Value Measurements Fair Value Hierarchy [Domain] Quoted Prices in Active markets (Level 1) [Member] Fair Value Inputs Level1 [Member] Significant Other Observable Inputs (Level 2) [Member] Fair Value Inputs Level2 [Member] Significant Unobservable Inputs (Level 3) [Member] Fair Value Inputs Level3 [Member] Eligible Item Or Group For Fair Value Option Eligible Item Or Group For Fair Value Option [Axis] Fair Value Option Eligible Item Or Group Fair Value Option Eligible Item Or Group [Domain] Cash and Cash Equivalents [Member] Cash And Cash Equivalents [Member] Certificate of Deposit [Member] Certificates Of Deposit [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] Assets, fair value Assets Fair Value Disclosure Assets, carrying value Schedule Of Property Plant And Equipment [Table] Schedule Of Property Plant And Equipment [Table] Property Plant And Equipment By Type Property Plant And Equipment By Type [Axis] Property Plant And Equipment Type Property Plant And Equipment Type [Domain] Laboratory equipment. Laboratory equipment [Member] Laboratory Equipment [Member] Office equipment [Member] Office Equipment [Member] Leasehold improvements [Member] Land Improvements [Member] Property Plant And Equipment [Line Items] Property Plant And Equipment [Line Items] Property and equipment, gross Property Plant And Equipment Gross Less: Accumulated depreciation and amortization Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Property and equipment, net Depreciation and amortization expense Depreciation And Amortization Schedule Of Finite Lived Intangible Assets [Table] Schedule Of Finite Lived Intangible Assets [Table] Finite Lived Intangible Assets By Major Class Finite Lived Intangible Assets By Major Class [Axis] Finite Lived Intangible Assets Major Class Name Finite Lived Intangible Assets Major Class Name [Domain] Licenses [Member] Licensing Agreements [Member] Patents [Member] Patents [Member] Other [Member] Other Intangible Assets [Member] Finite-Lived Intangible Assets [Line Items] Finite Lived Intangible Assets [Line Items] Cost Finite Lived Intangible Assets Gross Accumulated Amortization Finite Lived Intangible Assets Accumulated Amortization Intangible assets, net Finite Lived Intangible Assets Net Intangible assets amortization expense Amortization Of Intangible Assets 2016 Finite Lived Intangible Assets Amortization Expense Next Twelve Months 2017 Finite Lived Intangible Assets Amortization Expense Year Two 2018 Finite Lived Intangible Assets Amortization Expense Year Three 2019 Finite Lived Intangible Assets Amortization Expense Year Four 2020 Finite Lived Intangible Assets Amortization Expense Year Five Thereafter Finite Lived Intangible Assets Amortization Expense After Year Five Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Award Type Award Type [Axis] Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Two thousand thirteen employee stock purchase plan. 2013 Employee Stock Purchase Plan [Member] Two Thousand Thirteen Employee Stock Purchase Plan [Member] Two thousand thirteen stock incentive plan. 2013 Equity and Incentive Plan [Member] Two Thousand Thirteen Stock Incentive Plan [Member] Related Party Transactions By Related Party Related Party Transactions By Related Party [Axis] Related Party Related Party [Domain] Stockholder Owning in Excess of 10% [Member] Majority Shareholder [Member] Stock Options [Member] Employee Stock Option [Member] Title Of Individual Title Of Individual [Axis] Title Of Individual With Relationship To Entity Title Of Individual With Relationship To Entity [Domain] Employees and non employee. Employees And Non Employee [Member] Employees And Non Employee [Member] Restricted Stock Restricted Stock [Member] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share based awards issued Share Based Compensation Arrangement By Share Based Payment Award Shares Issued In Period Number of shares authorized Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized Number of shares available for issuance Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant Represents the ratio of the exercise price for stock options granted in relation to the fair market value of the common stock as of the date that such awards are granted. Percentage of exercise price stock option Percentage Of Exercise Price For Incentive Stock Options Option vesting period Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 Beginning Balance, Shares Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Granted, Shares Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross Exercised, Shares Stock Issued During Period Shares Stock Options Exercised Terminated, Shares Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period Ending Balance, Shares Vested, end of year, Shares Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number Exercisable, end of year, Shares Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number Weighted average fair value of options granted during the year, Shares Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value Beginning Balance, Weighted Average Exercise Price Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Granted, Weighted Average Exercise Price Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price Exercised, Weighted Average Exercise Price Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price Terminated, Weighted Average Exercise Price Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price Ending Balance, Weighted Average Exercise Price Schedule Of Share Based Compensation Shares Authorized Under Stock Option Plans By Exercise Price Range [Table] Schedule Of Share Based Compensation Shares Authorized Under Stock Option Plans By Exercise Price Range [Table] Share Based Compensation Shares Authorized Under Stock Option Plans By Exercise Price Range Share Based Compensation Shares Authorized Under Stock Option Plans By Exercise Price Range [Axis] Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Domain] Exercise price one. Exercise Price 0.35 to 4.90 [Member] Exercise Price One [Member] Exercise price two. Exercise Price 12.00 to 14.08 [Member] Exercise Price Two [Member] Exercise price three. Exercise Price 16.00 to 19.87 [Member] Exercise Price Three [Member] Exercise price four. Exercise Price 20.00 to 24.62 [Member] Exercise Price Four [Member] Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items] Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items] Stock options outstanding, Exercise Price Stock options outstanding, Number of Options Stock options Outstanding, Weighted Average Contractual Life Remaining Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 Stock options exercisable, Exercise Price Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price Stock options exercisable, Number of Options Represents the fair market value of the company's stock price as of the reporting period. Intrinsic value of stock option outstanding Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value Intrinsic value of stock option exercisable Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 Common stock value, per share Common Stock Closing Market Price Per Share Fair value of stock option vested during period Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 Unrecognized compensation expenses Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Weighted average period of expenses to be recognized Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 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] General and administrative [Member] General And Administrative Expense [Member] Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] Total stock-based compensation expense Dividend yield Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate Expected term Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 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 volatility Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Loss Contingencies [Table] Loss Contingencies [Table] Statement Geographical Statement Geographical [Axis] Segment Geographical Segment Geographical [Domain] Alachua, Florida [Member] F L Cambridge, Massachusetts [Member] M A Subsequent Event Type Subsequent Event Type [Axis] Subsequent Event Type Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent Event [Member] Type Of Arrangement Type Of Arrangement [Axis] Arrangements And Nonarrangement Transactions Member Arrangements And Nonarrangement Transactions [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Office and laboratory space for lease Land Subject To Ground Leases Lease expiration date Lease Expiration Date1 Rent expenses under operating leases Lease And Rental Expense Additional land subject to ground leases. Term of operating lease agreement Lessee Leasing Arrangements Operating Leases Term Of Contract Renewal term of operating lease agreement Lessee Leasing Arrangements Operating Leases Renewal Term Additional options for extending operating lease term Description Of Lessee Leasing Arrangements Operating Leases Additional office and laboratory space for lease Additional Land Subject To Ground Leases Tenant improvement allowance Tenant Improvements Commitments and contingencies. Commitments and contingencies. Commitments And Contingencies [Table] Commitments And Contingencies [Table] Commitments And Contingencies [Line Items] Commitments And Contingencies [Line Items] 2016 Operating Leases Future Minimum Payments Due Current 2017 Operating Leases Future Minimum Payments Due In Two Years 2018 Operating Leases Future Minimum Payments Due In Three Years 2019 Operating Leases Future Minimum Payments Due In Four Years 2020 Operating Leases Future Minimum Payments Due In Five Years Thereafter Operating Leases Future Minimum Payments Due Thereafter Total minimum future lease payments Operating Leases Future Minimum Payments Due Number of license agreement. Number of entities. Number of license agreements Number Of License Agreement Number of entities under the license agreement Number Of Entities Royalty and license maintenance paid Royalty Expense Deferred tax assets: Deferred Tax Assets Net [Abstract] Net operating loss carryforwards Deferred Tax Assets Operating Loss Carryforwards Research and development tax credit carryforwards Deferred Tax Assets Tax Credit Carryforwards Research Accruals and other Deferred Tax Assets Tax Deferred Expense Other Gross deferred tax assets Deferred Tax Assets Gross Deferred tax asset valuation allowance Deferred Tax Assets Valuation Allowance Total deferred tax assets, net of valuation allowance Deferred Tax Assets Net Deferred tax liabilities: Deferred Tax Liabilities [Abstract] Depreciation and amortization Deferred Tax Liabilities Property Plant And Equipment Total deferred tax liabilities Deferred Tax Liabilities Net deferred tax asset (liability) Deferred Tax Assets Liabilities Net Net operating losses expiration year. Tax credit carry forward expiration year. Income taxes. Income taxes. Income Taxes [Table] Income Taxes [Table] Tax Credit Carryforward Tax Credit Carryforward [Axis] Tax Credit Carryforward Name Tax Credit Carryforward Name [Domain] Research and development tax credit. Research and Development Tax Credit [Member] Research And Development Tax Credit [Member] BIOGEN. BIOGEN [Member] B I O G E N [Member] Income Taxes [Line Items] Income Taxes [Line Items] Net operating losses carryforwards Operating Loss Carryforwards Net operating losses carryforwards expiration year Net Operating Losses Expiration Year Research and development tax credits carry forwards Tax Credit Carryforward Amount Research and development tax credits carry forwards Tax Credit Carry Forward Expiration Year Non-refundable upfront payments received. Increase in valuation allowance Valuation Allowance Deferred Tax Asset Change In Amount Non-refundable upfront payments received Non Refundable Upfront Payments Received Effective income tax reconciliation, permanent differences. Federal income tax benefit at statutory rate Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate State income tax, net of federal benefit Effective Income Tax Rate Reconciliation State And Local Income Taxes Permanent differences Effective Income Tax Reconciliation Permanent Differences Research and development tax credits Effective Income Tax Rate Reconciliation Tax Credits Research Other Effective Income Tax Rate Reconciliation Other Adjustments Change in valuation allowance Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance Effective income tax rate Effective Income Tax Rate Continuing Operations Accrued interest and penalties Income Tax Examination Penalties And Interest Accrued Schedule of accrued liabilities. Accrued expenses. Accrued Expenses [Table] Accrued Expenses [Table] Compensation related expenses. Compensation-related [Member] Compensation Related Expenses [Member] Other [Member] Other Current Liabilities [Member] Schedule Of Accrued Liabilities [Line Items] Schedule Of Accrued Liabilities [Line Items] Accrued expenses Accrued Liabilities Current Defined Benefit Pension Plans And Defined Benefit Postretirement Plans Disclosure [Abstract] Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] Defined Benefit Plans And Other Postretirement Benefit Plans Disclosures [Table] Defined Benefit Plans And Other Postretirement Benefit Plans Disclosures [Table] Defined Benefit Plans And Other Postretirement Benefit Plans [Line Items] Defined Benefit Plans And Other Postretirement Benefit Plans [Line Items] Percentage of deferred compensation Defined Contribution Plan Maximum Annual Contributions Per Employee Percent Percentage of deferred compensation match by employer Defined Contribution Plan Employer Matching Contribution Percent Total matching contributions to the plan Defined Benefit Plan Contributions By Employer Schedule Of Stock By Class [Table] Schedule Of Stock By Class [Table] Over Allotment Option [Member] Over Allotment Option [Member] IPO and over allotment option. IPO and Over Allotment Option [Member] I P O And Over Allotment Option [Member] Public offering. Follow on Public Offerings [Member] Public Offering [Member] Underwritten public offering. Underwritten Public Offering [Member] Underwritten Public Offering [Member] Series B convertible preferred stock. Series B convertible preferred stock [Member] Series B Convertible Preferred Stock [Member] Fair Value By Liability Class Fair Value By Liability Class [Axis] Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation By Liability Class Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation By Liability Class [Domain] Restructuring Plan Restructuring Plan [Axis] Restructuring Plan Restructuring Plan [Domain] First amendment to stock purchase agreement. Series B amendment [Member] First Amendment To Stock Purchase Agreement [Member] Class Of Stock [Line Items] Class Of Stock [Line Items] Reverse stock split ratio Stockholders Equity Note Stock Split Conversion Ratio1 Reverse stock split ratio description Stockholders Equity Reverse Stock Split Proceeds from initial public offering Proceeds From Issuance Initial Public Offering Convertible preferred stock, shares issued upon conversion Convertible Preferred Stock Shares Issued Upon Conversion Warrants exercisable for common stock, converted from warrants exercisable for preferred stock Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights Common stock warrants. Common Stock Warrants [Member] Common Stock Warrants [Member] Stock Options Issued and Outstanding [Member] Stock Option [Member] Employee stock purchase plan 2013. Employee Stock Purchase Plan 2013 [Member] Employee Stock Purchase Plan2013 [Member] Equity incentive plan 2013. Equity and Incentive Plan 2013 [Member] Equity Incentive Plan2013 [Member] Common stock reserved for future issuance Common Stock Capital Shares Reserved For Future Issuance Aggregate price to purchase of shares. Preferred stock, shares authorized Temporary Equity Shares Authorized Preferred stock, shares issued and sold Temporary Equity Shares Issued Additional shares receivable by Series B holders Convertible Preferred Stock Shares Reserved For Future Issuance Aggregate purchase price Aggregate Price To Purchase Of Shares Fair value of purchase rights issued Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Issues Proceeds for issuance of share Proceeds From Issuance Of Convertible Preferred Stock Change in fair value Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Period Increase Decrease Purchase rights converted to convertible preferred stock Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements Common stock conversion price per share. Preferred stock, converted to common stock basis Common Stock Conversion Price Per Share Convertible preferred stock, shares outstanding Temporary Equity Shares Outstanding Revenue Loss from operations Net loss per common share, basic and diluted License payables term. Subsequent Event [Table] Subsequent Event [Table] Statement Scenario Statement Scenario [Axis] Scenario Unspecified Scenario Unspecified [Domain] Scenario, Forecast [Member] Scenario Forecast [Member] Product Or Service Product Or Service [Axis] Products And Services Products And Services [Domain] Lead programs. Lead programs [Member] Lead Programs [Member] Discovery programs. Discovery programs [Member] Discovery Programs [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] License payments License Costs License payables term License Payables Term Potential future milestone payments commitment from third party. Number of programs. Potential future milestone payments receivable Potential Future Milestone Payments Commitment From Third Party Milestone revenue Revenue Recognition Milestone Method Revenue Recognized Number of programs Number Of Programs Percentage of common stock issued. Purchase price of common stock Share Price Aggregate cash purchase price Percentage common stock post-issuance Percentage Of Common Stock Issued Valuation And Qualifying Accounts Disclosure [Table] Valuation And Qualifying Accounts Disclosure [Table] Valuation Allowances And Reserves Type Valuation Allowances And Reserves Type [Axis] Valuation Allowances And Reserves Valuation Allowances And Reserves [Domain] Deferred Tax Valuation Allowance [Member] Valuation Allowance Of Deferred Tax Assets [Member] Valuation and Qualifying Accounts Disclosure [Line Items] Valuation And Qualifying Accounts Disclosure [Line Items] Beginning of Period Valuation Allowances And Reserves Balance Additions, Charge (Benefit) to Expenses Valuation Allowances And Reserves Charged To Cost And Expense Additions, To (from) Other Accounts Valuation Allowances And Reserves Charged To Other Accounts Deductions Valuation Allowances And Reserves Deductions End of Period