00100 - Statement - BALANCE SHEETS
link:presentationLink
link:calculationLink
link:definitionLink
00200 - Statement - STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS
link:presentationLink
link:calculationLink
link:definitionLink
00400 - Statement - STATEMENTS OF CASH FLOWS
link:presentationLink
link:calculationLink
link:definitionLink
40201 - Disclosure - Summary of Significant Accounting Policies - Restricted Cash (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40401 - Disclosure - Fair Value Measurements - (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40501 - Disclosure - Property and Equipment, Net - (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40601 - Disclosure - Accrued Liabilities (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40802 - Disclosure - Commitments and Contingencies - Future Minimum Payments (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40802 - Disclosure - Term Loan - Maturities (Details)_Calc2
link:presentationLink
link:calculationLink
link:definitionLink
40902 - Disclosure - Term Loan - Maturities (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41401 - Disclosure - Income Taxes - Reconciliation (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41402 - Disclosure - Income Taxes - Deferred tax assets (Details)
link:presentationLink
link:calculationLink
link:definitionLink
00090 - Document - Document and Entity Information
link:presentationLink
link:calculationLink
link:definitionLink
00105 - Statement - BALANCE SHEETS - (Parenthetical)
link:presentationLink
link:calculationLink
link:definitionLink
00300 - Statement - STATEMENTS OF PREFERRED STOCK AND STOCKHOLDERS’ EQUITY (DEFICIT)
link:presentationLink
link:calculationLink
link:definitionLink
00305 - Statement - STATEMENTS OF PREFERRED STOCK AND STOCKHOLDERS’ EQUITY (DEFICIT) (Parenthetical)
link:presentationLink
link:calculationLink
link:definitionLink
10901 - Disclosure - Term Loan
link:presentationLink
link:calculationLink
link:definitionLink
11001 - Disclosure - Preferred Stock
link:presentationLink
link:calculationLink
link:definitionLink
11101 - Disclosure - Common Stock
link:presentationLink
link:calculationLink
link:definitionLink
11201 - Disclosure - Stock-Based Compensation
link:presentationLink
link:calculationLink
link:definitionLink
11301 - Disclosure - Net Loss Per Share Attributable to Common Stockholders
link:presentationLink
link:calculationLink
link:definitionLink
11401 - Disclosure - Income Taxes
link:presentationLink
link:calculationLink
link:definitionLink
11501 - Disclosure - Employee Benefit Plan
link:presentationLink
link:calculationLink
link:definitionLink
11601 - Disclosure - Subsequent Events
link:presentationLink
link:calculationLink
link:definitionLink
30903 - Disclosure - Term Loan (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
31203 - Disclosure - Stock-Based Compensation (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
31303 - Disclosure - Net Loss Per Share Attributable to Common Stockholders (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
31403 - Disclosure - Income Taxes (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
40101 - Disclosure - Nature of the Business and Basis of Presentation - Public Offerings and Common Stock (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40102 - Disclosure - Nature of the Business and Basis of Presentation - Liquidity (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40202 - Disclosure - Summary of Significant Accounting Policies - Property and Equipment (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40701 - Disclosure - Former Agreement with Eli Lilly and Company - General (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40901 - Disclosure - Term Loan - Other (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41001 - Disclosure - Preferred Stock (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41101 - Disclosure - Common Stock (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41201 - Disclosure - Stock-Based Compensation - Stock options (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41202 - Disclosure - Stock-Based Compensation - Stock based compensation expense (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41203 - Disclosure - Stock-Based Compensation - Assumptions (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41204 - Disclosure - Stock-Based Compensation - Restricted Common Stock (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41301 - Disclosure - Net Loss Per Share Attributable to Common Stockholders - Anti-dilutive effect (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41501 - Disclosure - Employee Benefit Plan (Details)
link:presentationLink
link:calculationLink
link:definitionLink
10101 - Disclosure - Nature of the Business and Basis of Presentation
link:presentationLink
link:calculationLink
link:definitionLink
10201 - Disclosure - Summary of Significant Accounting Policies
link:presentationLink
link:calculationLink
link:definitionLink
10401 - Disclosure - Fair Value Measurements
link:presentationLink
link:calculationLink
link:definitionLink
10501 - Disclosure - Property and Equipment, Net
link:presentationLink
link:calculationLink
link:definitionLink
10601 - Disclosure - Accrued Liabilities
link:presentationLink
link:calculationLink
link:definitionLink
10701 - Disclosure - Former Agreement with Eli Lilly and Company
link:presentationLink
link:calculationLink
link:definitionLink
10801 - Disclosure - Commitments and Contingencies
link:presentationLink
link:calculationLink
link:definitionLink
20202 - Disclosure - Summary of Significant Accounting Policies (Policies)
link:presentationLink
link:calculationLink
link:definitionLink
30203 - Disclosure - Summary of Significant Accounting Policies (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
30403 - Disclosure - Fair Value Measurements (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
30503 - Disclosure - Property and Equipment, Net (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
30603 - Disclosure - Accrued Liabilities (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
30803 - Disclosure - Commitments and Contingencies (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
40203 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40801 - Disclosure - Commitments and Contingencies - Other (Details)
link:presentationLink
link:calculationLink
link:definitionLink