100000 - Document - Document and Entity Information link:presentationLink link:calculationLink link:definitionLink 100010 - Statement - BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 100020 - Statement - BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 100030 - Statement - STATEMENTS OF CASH FLOWS (Unaudited) 2 link:presentationLink link:calculationLink link:definitionLink 100040 - Statement - STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (Unaudited) link:presentationLink link:calculationLink link:definitionLink 100050 - Statement - STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) link:presentationLink link:calculationLink link:definitionLink 100060 - Statement - STATEMENTS OF CASH FLOWS (Unaudited) link:presentationLink link:calculationLink link:definitionLink 100070 - Disclosure - Description of the Business link:presentationLink link:calculationLink link:definitionLink 100080 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 100090 - Disclosure - License Agreements link:presentationLink link:calculationLink link:definitionLink 100100 - Disclosure - Property and Equipment, Net link:presentationLink link:calculationLink link:definitionLink 100110 - Disclosure - Accrued Liabilities link:presentationLink link:calculationLink link:definitionLink 100120 - Disclosure - Investments link:presentationLink link:calculationLink link:definitionLink 100130 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 100140 - Disclosure - Equity Incentive Plans and Stock-Based Compensation link:presentationLink link:calculationLink link:definitionLink 100150 - Disclosure - Subsequent Event link:presentationLink link:calculationLink link:definitionLink 100160 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 100170 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 100180 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Tables) link:presentationLink link:calculationLink link:definitionLink 100190 - Disclosure - Property and Equipment, Net (Tables) link:presentationLink link:calculationLink link:definitionLink 100200 - Disclosure - Accrued Liabilities (Tables) link:presentationLink link:calculationLink link:definitionLink 100210 - Disclosure - Investments (Tables) link:presentationLink link:calculationLink link:definitionLink 100220 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 100230 - Disclosure - Equity Incentive Plans and Stock-Based Compensation (Tables) link:presentationLink link:calculationLink link:definitionLink 100240 - Disclosure - Commitments and Contingencies (Tables) link:presentationLink link:calculationLink link:definitionLink 100250 - Disclosure - Description of the Business - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 100260 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 100270 - Disclosure - License Agreements - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 100280 - Disclosure - Property and Equipment, Net - Schedule of Property and Equipment, Net (Details) link:presentationLink link:calculationLink link:definitionLink 100290 - Disclosure - Accrued Liabilities - Schedule of Accrued Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 100300 - Disclosure - Investments - Schedule of Cost, Gross Unrealized Holding Gains, Gross Unrealized Holding Losses and Fair Value of Available for Sale Investments (Details) link:presentationLink link:calculationLink link:definitionLink 100310 - Disclosure - Fair Value Measurements - Schedule of Assets Measured at Fair Value on Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 100320 - Disclosure - Fair Value Measurements - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 100330 - Disclosure - Equity Incentive Plans and Stock-Based Compensation - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 100340 - Disclosure - Equity Incentive Plans and Stock-Based Compensation - Summary of Total Stock-based Compensation Expense (Details) link:presentationLink link:calculationLink link:definitionLink 100350 - Disclosure - Equity Incentive Plans and Stock-Based Compensation - Summary of Option Activity (Details) link:presentationLink link:calculationLink link:definitionLink 100360 - Disclosure - Equity Incentive Plans and Stock-Based Compensation - Summary of Fair Value of Stock Options Estimated Using Black-Scholes Merton Option Pricing Model Assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 100370 - Disclosure - Equity Incentive Plans and Stock-Based Compensation - Summary of Restricted Stock Unit Activity (Details) link:presentationLink link:calculationLink link:definitionLink 100380 - Disclosure - Equity Incentive Plans and Stock-Based Compensation - Summary of Outstanding Shares of Potential Dilutive Securities Excluded from Computation of Diluted Net Loss per Share (Details) link:presentationLink link:calculationLink link:definitionLink