| Component: (Network and Table) | |
|---|---|
| Network | 00400 - Statement - CONDENSED STATEMENTS OF CASH FLOWS (http://www.corvuspharma.com/role/StatementCondensedStatementsOfCashFlows)  | 
| Table | (Implied) | 
| Reporting Entity [Axis] | 0001626971 (http://www.sec.gov/CIK) | 
| CONDENSED STATEMENTS OF CASH FLOWS | Period [Axis] | ||
|---|---|---|---|
2016-01-01 - 2016-12-31  | 2015-01-01 - 2015-12-31  | 2014-01-27 - 2014-12-31  | |
CONDENSED STATEMENTS OF CASH FLOWS  | |||
Cash flows from operating activities  | |||
Net loss  | (36,375,000)   | (31,335,000)   | (161,000)   | 
Adjustments to reconcile net loss to net cash used in operating activities:  | |||
Depreciation  | |||
Amortization/accretion related to marketable securities  | (  | ||
Stock-based compensation  | |||
Change in fair value of convertible preferred stock liability  | 17,600,000    | ||
Other  | |||
Changes in operating assets and liabilities:  | |||
Prepaid and other current assets  | (  | (  | |
Other assets  | (  | ||
Accounts payable  | |||
Accrued and other liabilities  | |||
Other long-term liabilities  | |||
Net cash used in operating activities  | (  | (  | (  | 
Cash flows from investing activities  | |||
Purchases of marketable securities  | (  | (  | |
Sales of marketable securities  | |||
Maturities of marketable securities  | |||
Purchase of property and equipment  | (  | (  | |
Net cash used in investing activities  | (  | (  | |
Cash flows from financing activities  | |||
Proceeds from issuance of common stock in IPO, net of issuance costs  | |||
Proceeds from issuance of convertible preferred stock, net of issuance costs  | |||
Payment of offering costs  | (  | ||
Proceeds from exercise of common stock options  | |||
Net cash provided by financing activities  | |||
Net increase in cash and cash equivalents  | (  | ||
Cash and cash equivalents at beginning of the period  | 4,105,000    | ||
Cash and cash equivalents at end of the period  | 5,050,000    | 4,105,000    | 12,517,000    | 
Supplemental disclosures of cash flow information  | |||
Convertible preferred stock issuance costs incurred but not paid  | |||
Purchases of property and equipment incurred but not paid  | |||
Convertible preferred stock liability  | 2,600,000    | ||
Deferred offering costs incurred but not paid  | |||