Entity Central Index Key Trading securities gross unrealized gain accumulated in investments. Trading securities gross unrealized loss accumulated in investments. 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 Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Common stock warrants. Statement Of Financial Position [Abstract] Statement [Table] Statement [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] Patents [Member] Patents [Member] Statement [Line Items] Statement [Line Items] Assets Assets [Abstract] Current assets: Assets Current [Abstract] Cash and cash equivalents Cash And Cash Equivalents At Carrying Value Short-term investments Short Term Investments Accounts receivable, net Accounts Receivable Net Current Inventory, net Inventory Net Prepaid and other current assets Prepaid Expense And Other Assets Current Total current assets Assets Current Property and equipment, net Property Plant And Equipment Net Patents, net Finite Lived Intangible Assets Net Restricted cash - long term Restricted Cash And Cash Equivalents Noncurrent Other long-term assets Other Assets Noncurrent Total assets Assets Liabilities and stockholders’ equity (deficit) Liabilities And Stockholders Equity [Abstract] Current liabilities: Liabilities Current [Abstract] Accounts payable Accounts Payable Current Accrued expense Accrued Liabilities Current Employee-related liabilities Employee Related Liabilities Current Deferred revenue Deferred Revenue Current Common stock warrants Common Stock Warrants Other current liabilities Other Liabilities Current Total current liabilities Liabilities Current Notes payable—long-term Long Term Notes Payable Deferred rent—long-term Deferred Rent Credit Noncurrent Other long-term liabilities Other Liabilities Noncurrent Total liabilities Liabilities Commitments and contingencies Commitments And Contingencies Stockholders’ equity (deficit): Stockholders Equity [Abstract] Common stock, $0.001 par value; 100,000 shares authorized as of March 31, 2018 and December 31, 2017, 46,636 and 10,119 shares issued and outstanding at March 31, 2018 and December 31, 2017, respectively. Common Stock Value Additional paid-in capital Additional Paid In Capital Common Stock Accumulated deficit Retained Earnings Accumulated Deficit Total stockholders’ equity (deficit) Stockholders Equity Total liabilities and stockholders’ equity (deficit) 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] Sales Sales Revenue Net Cost of sales Cost Of Goods And Services Sold Gross profit Gross Profit Operating expenses: Operating Expenses [Abstract] Selling, general and administrative Selling General And Administrative Expense Research and development Research And Development Expense Total operating expenses Operating Expenses Operating loss Operating Income Loss Other income (expense), net: Other Nonoperating Income Expense [Abstract] Interest and other income Interest And Other Income Interest and other expense Interest Expense Other Change in fair value of stock warrants Fair Value Adjustment Of Warrants Total other expense, net Other Nonoperating Income Expense Net loss Net Income Loss Other comprehensive loss: Other Comprehensive Income Loss Net Of Tax Period Increase Decrease [Abstract] Unrealized gain on short-term investments Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax Comprehensive loss Comprehensive Income Net Of Tax Net loss per share, basic and diluted Earnings Per Share Basic And Diluted Weighted average shares used to compute basic and diluted net loss per share Weighted Average Number Of Share Outstanding Basic And Diluted Reverse stock split description Stockholders Equity Reverse Stock Split Reverse stock split, conversion ratio Stockholders Equity Note Stock Split Conversion Ratio1 Increase decrease in deferred rent. Cash proceeds received by the Company, net of offering costs, for the initial or subsequent offering of common stock to the public. Debt discount incurred during noncash or partial noncash transaction. Common stock warrants issued in connection with term loan. Public offering costs included in accounts payable. Statement Of Cash Flows [Abstract] Operating activities Net Cash Provided By Used In Operating Activities Continuing Operations [Abstract] Net 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 expense Depreciation Depletion And Amortization Interest expense related to amortization of debt discount and debt issuance costs Amortization Of Financing Costs And Discounts Provision for allowance for doubtful accounts Provision For Doubtful Accounts Provision for inventory reserve Inventory Write Down Payment in kind interest accrual of notes payable Paid In Kind Interest Change in fair value of common stock warrants Amortization of discount on short-term investments Investment Income Net Amortization Of Discount And Premium Stock-based compensation expense Share Based Compensation Other Other Operating Activities Cash Flow Statement Changes in operating assets and liabilities: Increase Decrease In Operating Capital [Abstract] Accounts receivable, net Increase Decrease In Accounts Receivable Inventory, net Increase Decrease In Inventories Prepaid and other current assets Increase Decrease In Prepaid Deferred Expense And Other Assets Other long-term assets Increase Decrease In Other Noncurrent Assets Accounts payable Increase Decrease In Accounts Payable Accrued expense Increase Decrease In Accrued Liabilities Employee-related liabilities Increase Decrease In Employee Related Liabilities Deferred revenue Increase Decrease In Deferred Revenue Other current liabilities Increase Decrease In Other Current Liabilities Deferred rent Increase Decrease In Deferred Rent Other long-term liabilities Increase Decrease In Other Noncurrent Liabilities Net cash used in operating activities Net Cash Provided By Used In Operating Activities Continuing Operations Investing activities Net Cash Provided By Used In Investing Activities Continuing Operations [Abstract] Purchase of short-term investments Payments To Acquire Short Term Investments Proceeds from sales and maturities of short-term investments Proceeds From Sale Of Short Term Investments Purchase of property and equipment Payments To Acquire Property Plant And Equipment Net cash provided by (used in) investing activities Net Cash Provided By Used In Investing Activities Continuing Operations Financing activities Net Cash Provided By Used In Financing Activities Continuing Operations [Abstract] Proceeds from public offering, net of offering costs Proceeds From Public Offering Net Of Offering Costs Proceeds from exercise of warrants Proceeds From Warrant Exercises Proceeds from exercise of common stock Proceeds From Issuance Of Common Stock Net cash provided by financing activities Net Cash Provided By Used In Financing Activities Continuing Operations Net increase in cash and cash equivalents and restricted cash Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect Cash and cash equivalents and restricted cash at beginning of period Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Cash and cash equivalents and restricted cash at end of period Supplemental disclosures of cash flow information Supplemental Cash Flow Information [Abstract] Interest paid Interest Paid Supplemental schedule of noncash investing and financing activities Noncash Investing And Financing Items [Abstract] Lease incentive - lessor-paid tenant improvements Payments For Leasing Costs Commissions And Tenant Improvements Debt discount included in other long-term liabilities Debt Discount Incurred During Noncash Or Partial Noncash Transaction Common stock warrants issued in connection with term loan Common Stock Warrants Issued In Connection With Term Loan Public offering costs included in accounts payable Public Offering Costs Included In Accounts Payable Property and equipment included in accounts payable Capital Expenditures Incurred But Not Yet Paid Organization Consolidation And Presentation Of Financial Statements [Abstract] Organization and Basis of Presentation Organization Consolidation And Presentation Of Financial Statements Disclosure [Text Block] Accounting Policies [Abstract] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Investments Debt And Equity Securities [Abstract] Short-Term Investments Investments In Debt And Marketable Equity Securities And Certain Trading Assets Disclosure [Text Block] Inventory Disclosure [Abstract] Inventory Inventory Disclosure [Text Block] Fair Value Disclosures [Abstract] Fair Value Measurements Fair Value Disclosures [Text Block] Debt Disclosure [Abstract] Term Loan Agreement Debt Disclosure [Text Block] Equity [Abstract] Stockholders' Equity Stockholders Equity Note Disclosure [Text Block] Commitments And Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments And Contingencies Disclosure [Text Block] Nature of operation. The Company Nature Of Operation Policy [Text Block] Basis of Presentation Basis Of Accounting Policy Policy [Text Block] Use of Estimates Use Of Estimates Segment Reporting Segment Reporting Policy Policy [Text Block] Restricted Cash Cash And Cash Equivalents Restricted Cash And Cash Equivalents Policy Accounts Receivable Receivables Policy [Text Block] Fair Value of Financial Instruments Fair Value Of Financial Instruments Policy Revenue Recognition Revenue Recognition Policy [Text Block] Warranty Reserve Standard Product Warranty Policy Stock-Based Compensation Compensation Related Costs Policy [Text Block] Net Loss Per Share Earnings Per Share Policy [Text Block] Reclassifications Prior Period Reclassification Adjustment Description Recent Accounting Pronouncements New Accounting Pronouncements Policy Policy [Text Block] Summary of Reconciliation of Change in Product Warranty Liabilities Schedule Of Product Warranty Liability Table [Text Block] Schedule of Anti-Dilutive Securities Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Text Block] Summary of Estimated Fair Value of Short-Term Investments Schedule Of Cash Cash Equivalents And Short Term Investments Table [Text Block] Summary of Inventory Schedule Of Inventory Current Table [Text Block] Schedule of 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] Schedule of Assumptions Used to Estimate Fair Values of Common Stock Warrants Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques Table [Text Block] Summary of Changes in Fair Value of Total Level 3 Financial Assets Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Text Block] Schedule of common stock reserved for future issuance. Schedule of Shares of Common Stock Reserved for Future Issuance Schedule Of Common Stock Reserved For Future Issuance Table [Text Block] Schedule of Assumptions Used in Black-Scholes Option-Pricing Model Schedule Of Share Based Payment Award Stock Options Valuation Assumptions Table [Text Block] Summary for Allocation of Stock-Based Compensation Expense Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Text Block] Product life span term. Organization and basis of presentation. Organization and basis of presentation. Organization And Basis Of Presentation [Table] Organization And Basis Of Presentation [Table] Products and Services Product Or Service [Axis] Products and Services Products And Services [Domain] Insulin pump. Insulin Pump [Member] Insulin Pump [Member] Range Range [Axis] Range Range [Member] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] T:slim X2. T:slim X2 [Member] T Slim X2 [Member] Organization And Basis Of Presentation [Line Items] Organization And Basis Of Presentation [Line Items] Expected life span term Product Life Span Term Percentage of new pump shipments represented by product hardware platform. Percentage of new pump shipments represented by product hardware platform Percentage Of New Pump Shipments Represented By Product Hardware Platform Operating losses and accumulated deficit Cash cash equivalents and restricted cash current and noncurrent and short term investments. Cash and cash equivalents and short-term investments including restricted cash Cash Cash Equivalents And Restricted Cash Current And Noncurrent And Short Term Investments Restricted cash Summary of significant accounting policies. Summary of significant accounting policies. Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Long-term Debt, Type Longterm Debt Type [Axis] Long-term Debt, Type Longterm Debt Type [Domain] Term loan. Term Loan Agreement [Member] Term Loan [Member] Adjustments for New Accounting Pronouncements Adjustments For New Accounting Pronouncements [Axis] Type of Adoption Type Of Adoption [Member] ASU 2014-09: Revenue from Contracts with Customers [Member] Accounting Standards Update201409 [Member] Complementary products. Complementary products [Member] Complementary Products [Member] Tandem pump. Tandem Pump [Member] Tandem Pump [Member] Slim cartridges and infusion sets. Slim cartridges and infusion sets [Member] Slim Cartridges And Infusion Sets [Member] Valuation Allowances and Reserves Type Valuation Allowances And Reserves Type [Axis] Valuation Allowances and Reserves Valuation Allowances And Reserves [Domain] Warranty reserves [Member] Warranty Reserves [Member] Summary Of Significant Accounting Policies [Line Items] Summary Of Significant Accounting Policies [Line Items] Number of operating segments Number Of Operating Segments Restricted cash Restricted Cash And Cash Equivalents At Carrying Value Net reduction to accumulated deficit New Accounting Pronouncement Or Change In Accounting Principle Cumulative Effect Of Change On Equity Or Net Assets1 Deferred revenue Deferred Revenue Revenue performance obligations satisfied over period Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period Offered period for sales return prior to expiration. Allowance for sales returns. Offered period for sales return Offered Period For Sales Return Prior To Expiration Allowance for product returns Allowance For Sales Returns Products warranty period. Warranty period offered Products Warranty Period Warranty reserve Product Warranty Accrual Product Warranties Disclosures [Abstract] Movement In Standard And Extended Product Warranty Increase Decrease Roll Forward Movement In Standard And Extended Product Warranty Increase Decrease Roll Forward Beginning balance Provision for warranties issued during the period Product Warranty Accrual Warranties Issued Settlements made during the period Product Warranty Accrual Payments Increases in warranty estimates Product Warranty Accrual Preexisting Increase Decrease Ending balance Current portion Product Warranty Accrual Classified Current Non-current portion Product Warranty Accrual Noncurrent Earnings Per Share [Abstract] Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Sale of Stock Subsidiary Sale Of Stock [Axis] Sale of Stock Sale Of Stock Name Of Transaction [Domain] ESPP [Member] Employee Stock [Member] Antidilutive Securities Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities [Axis] Antidilutive Securities, Name Antidilutive Securities Name [Domain] Warrants for common stock [Member] Warrant [Member] Common stock options [Member] Employee Stock Option [Member] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Antidilutive securities excluded from computation of earnings per share, amount Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Short term investments amortized cost. Short term investments accumulated gross unrealized gain before tax. Short term investments accumulated gross unrealized loss before tax. Cash cash equivalents and short term investments. Cash cash equivalents and short term investments. Cash Cash Equivalents And Short Term Investments [Table] Cash Cash Equivalents And Short Term Investments [Table] Investment Type Investment Type [Axis] Investments Investment Type Categorization [Member] Commercial paper [Member] Commercial Paper [Member] Trading securities mutual funds held for nonqualified deferred compensation plan participants. Trading securities — mutual funds held for nonqualified deferred compensation plan participants [Member] Trading Securities Mutual Funds Held For Nonqualified Deferred Compensation Plan Participants [Member] Cash Cash Equivalents And Short Term Investments [Line Items] Cash Cash Equivalents And Short Term Investments [Line Items] Available-for-sale investment securities, Amortized Cost Available For Sale Securities Amortized Cost Available-for-sale investment securities, Unrealized Gain Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax Available-for-sale investment securities, Unrealized Loss Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax Available-for-sale investment securities, Estimated Fair Value Available For Sale Securities Trading securities, Amortized Cost Trading Securities Equity Cost Trading securities, Unrealized Gain Trading Securities Gross Unrealized Gain Accumulated In Investments Trading securities, Unrealized Loss Trading Securities Gross Unrealized Loss Accumulated In Investments Trading securities, Estimated Fair Value Trading Securities Short-term investments, Amortized Cost Short Term Investments Amortized Cost Short-term investments, Unrealized Gain Short Term Investments Accumulated Gross Unrealized Gain Before Tax Short-term investments, Unrealized Loss Short Term Investments Accumulated Gross Unrealized Loss Before Tax Short-term investments, Estimated Fair Value Raw materials Inventory Raw Materials Work in process Inventory Work In Process Finished goods Inventory Finished Goods Total Fair Value By Balance Sheet Grouping [Table] Fair Value By Balance Sheet Grouping [Table] Level 2 [Member] Fair Value By Fair Value Hierarchy Level [Axis] Fair Value Hierarchy Fair Value Measurements Fair Value Hierarchy [Domain] Level 1 [Member] Fair Value Inputs Level1 [Member] Level 2 [Member] Fair Value Inputs Level2 [Member] Level 3 [Member] Fair Value Inputs Level3 [Member] Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation Deferred Compensation Arrangement With Individual Share Based Payments By Type Of Deferred Compensation [Axis] Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation Equity Based Arrangements Individual Contracts Type Of Deferred Compensation [Domain] Deferred compensation [Member] Deferred Compensation Share Based Payments [Member] Cash and Cash Equivalents Cash And Cash Equivalents [Axis] Cash and Cash Equivalents Restricted Cash And Cash Equivalents Cash And Cash Equivalents [Member] Cash equivalents [Member] Cash Equivalents [Member] Mutual funds held for nonqualified deferred compensation plan participants. Mutual funds held for nonqualified deferred compensation plan participants [Member] Mutual Funds Held For Nonqualified Deferred Compensation Plan Participants [Member] Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] Total assets Assets Fair Value Disclosure Recurring Total liabilities Liabilities Fair Value Disclosure Recurring Cash equivalents maturity term. Cash equivalents maturity term Cash Equivalents Maturity Term Class of Warrant or Right Class Of Warrant Or Right [Axis] Class of Warrant or Right Class Of Warrant Or Right [Domain] Series A warrants. Series A warrants [Member] Series A Warrants [Member] Series B warrants. Series B warrants [Member] Series B Warrants [Member] Secondary public offering. Secondary Public Offering [Member] Secondary Public Offering [Member] Series A and Series B warrants. Series A and B warrants [Member] Series A And Series B Warrants [Member] Transfer between level 1 and level 2 assets Fair Value Assets Level1 To Level2 Transfers Amount Public offering period. Fair value of warrant liability. Warrants issue to purchase common stock Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights Public offering period Public Offering Period Warrants exercise price Class Of Warrant Or Right Exercise Price Of Warrants Or Rights1 Warrants initial value Fair Value Of Warrant Liability Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Table] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Table] Series A Warrants [Member] Series B Warrants [Member] Series B Warrants [Member] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] Risk-free interest rate Fair Value Assumptions Risk Free Interest Rate Expected dividend yield Fair Value Assumptions Expected Dividend Rate Expected volatility Fair Value Assumptions Expected Volatility Rate Expected term (in years) Fair Value Assumptions Expected Term Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation Calculation Roll Forward Balance at December 31, 2017 Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value Decrease in fair value from warrants exercised during the period Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Issues Increase in fair value included in change in fair value of common stock warrants Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Period Increase Decrease Balance at March 31, 2018 Outstanding warrants Class Of Warrant Or Right Outstanding Debt Instrument [Table] Debt Instrument [Table] Term loan for third amendment. Third Amendment [Member] Term Loan For Third Amendment [Member] Term loan for fourth amendment. Fourth Amendment [Member] Term Loan For Fourth Amendment [Member] Term loan for fifth amendment. Fifth Amendment [Member] Term Loan For Fifth Amendment [Member] Balance Sheet Location Balance Sheet Location [Axis] Balance Sheet Location Balance Sheet Location [Domain] Other long term liabilities and as contra-debt in notes payable-long term. Other Long Term Liabilities And As Contra-Debt In Notes Payable-Long Term [Member] Other Long Term Liabilities And As Contra Debt In Notes Payable Long Term [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Loan outstanding Long Term Debt Interest rate. Compounded interest rate. Debt instrument date of last required interest payment. Interest rate Debt Instrument Interest Rate Stated Percentage Interest payable as cash Interest Rate Compounded interest payable Compounded Interest Rate Interest-only payments description Debt Instrument Payment Terms Maturity date for interest-only payment Debt Instrument Date Of Last Required Interest Payment Maturity date for principal balance Debt Instrument Maturity Date Additional amount borrowed Future minimum annual revenues attainable in current. Future minimum annual revenues attainable thereafter. Minimum annual revenues attainable in 2017 Future Minimum Annual Revenues Attainable In Current Minimum annual revenues attainable after 2017 Future Minimum Annual Revenues Attainable Thereafter Percentage of financing fee. Percentage of financing fee Percentage Of Financing Fee Line of credit facility amount borrowed Proceeds From Lines Of Credit Class of warrant or rights outstanding contractual life. Warrants life Class Of Warrant Or Rights Outstanding Contractual Life Minimum cash balance Restricted Cash And Cash Equivalents Prepayment of outstanding principal amount of term loan. Prepayment fee percentage Prepayment Of Outstanding Principal Amount Of Term Loan Equity securities last date to complete equity finance. Gross proceeds from sale of equity securities on event of default occurred due to going concern qualification Proceeds From Issuance Or Sale Of Equity Equity finance completion last date Equity Securities Last Date To Complete Equity Finance Accrued back end financing fee. Accrued back end financing fee Accrued Back End Financing Fee Present value of the future cash flows Percentage Of Debt Hedged By Interest Rate Derivatives Proceeds from issuance of secondary public offering gross. Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] At the market (ATM) program. At The Market Offering Program [Member] At The Market A T M Program [Member] Equity Components Statement Equity Components [Axis] Equity Component Equity Component [Domain] Common Stock [Member] Common Stock [Member] Subsequent Event Type Subsequent Event Type [Axis] Subsequent Event Type Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent Event [Member] Award Type Award Type [Axis] Equity Award Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] ESPP [Member] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Shares offered for public offering Stock Issued During Period Shares New Issues Shares offering price per share Sale Of Stock Price Per Share Gross proceeds from secondary public offering Proceeds From Issuance Of Secondary Public Offering Gross Proceeds from issuance of secondary public offering net of offering costs. Proceeds from secondary public offering Proceeds From Issuance Of Secondary Public Offering Net Of Offering Costs Warrants exercised. Gross proceeds from exercise of warrants Warrants exercised Warrants Exercised Shares underlying outstanding warrants [Member] Stock options issued and outstanding. Shares underlying outstanding stock options [Member] Stock Options Issued And Outstanding [Member] Authorized for future option grants. Shares authorized for future equity award grants [Member] Authorized For Future Option Grants [Member] Shares authorized for issuance as ESPP awards [Member] Stock Compensation Plan [Member] Common stock reserved for future issuance Common Stock Capital Shares Reserved For Future Issuance Common stock shares issued Stock Issued During Period Shares Stock Options Exercised Offering period. Purchase period. Purchase of common stock under ESPP Share Based Compensation Arrangement By Share Based Payment Award Shares Purchased For Award Offering Period Offering Period Purchase Period Purchase Period Employee Stock Option [Member] Weighted average grant date fair value (per share) Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value Risk-free interest rate Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Expected dividend yield Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate Expected volatility Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Expected term (in years) Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 Income Statement Location Income Statement Location [Axis] Income Statement Location Income Statement Location [Domain] Cost of sales [Member] Cost Of Sales [Member] Selling, general & administrative [Member] Selling General And Administrative Expenses [Member] Research and development [Member] Research And Development Expense [Member] Compensation cost Allocated Share Based Compensation Expense Total stock-based compensation expense capitalized as part of cost of inventory Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount Number of legal proceedings regulatory encounters or other matters. Number of legal proceedings, regulatory encounters or other matters Number Of Legal Proceedings Regulatory Encounters Or Other Matters