{"cik":1468748,"taxonomy":"us-gaap","tag":"EarningsPerShareBasicAndDiluted","label":"Earnings Per Share, Basic and Diluted","description":"The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.","entityName":"KODIAK SCIENCES INC.","units":{"USD/shares":[{"start":"2016-01-01","end":"2016-12-31","val":-2.38,"accn":"0001564590-19-009601","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-27","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-0.68,"accn":"0001564590-19-009601","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-27","frame":"CY2017Q1"},{"start":"2017-04-01","end":"2017-06-30","val":-0.9,"accn":"0001564590-19-009601","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-27","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":-2.19,"accn":"0001564590-18-029743","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-16"},{"start":"2017-07-01","end":"2017-09-30","val":-0.61,"accn":"0001564590-18-029743","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-16"},{"start":"2017-07-01","end":"2017-09-30","val":-0.61,"accn":"0001564590-19-009601","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-27","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":-3.72,"accn":"0001564590-19-009601","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-27"},{"start":"2017-01-01","end":"2017-12-31","val":-3.72,"accn":"0001564590-20-011186","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-16","frame":"CY2017"},{"start":"2017-10-01","end":"2017-12-31","val":-1.52,"accn":"0001564590-19-009601","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-27","frame":"CY2017Q4"},{"start":"2018-01-01","end":"2018-03-31","val":-1.16,"accn":"0001564590-19-009601","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-27"},{"start":"2018-01-01","end":"2018-03-31","val":-1.16,"accn":"0001564590-19-019254","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"start":"2018-01-01","end":"2018-03-31","val":-1.16,"accn":"0001564590-20-011186","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-16","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-2.11,"accn":"0001564590-19-032128","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":-0.96,"accn":"0001564590-19-009601","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-27"},{"start":"2018-04-01","end":"2018-06-30","val":-0.96,"accn":"0001564590-19-032128","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2018-04-01","end":"2018-06-30","val":-0.96,"accn":"0001564590-20-011186","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-16","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":-3.45,"accn":"0001564590-18-029743","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-16"},{"start":"2018-01-01","end":"2018-09-30","val":-3.45,"accn":"0001564590-19-042887","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-12"},{"start":"2018-07-01","end":"2018-09-30","val":-1.33,"accn":"0001564590-18-029743","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-16"},{"start":"2018-07-01","end":"2018-09-30","val":-1.33,"accn":"0001564590-19-009601","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-27"},{"start":"2018-07-01","end":"2018-09-30","val":-1.33,"accn":"0001564590-19-042887","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-12"},{"start":"2018-07-01","end":"2018-09-30","val":-1.33,"accn":"0001564590-20-011186","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-16","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":-2.77,"accn":"0001564590-19-009601","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-27"},{"start":"2018-01-01","end":"2018-12-31","val":-2.77,"accn":"0001564590-20-011186","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-16"},{"start":"2018-01-01","end":"2018-12-31","val":-2.77,"accn":"0001564590-21-009946","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-01","frame":"CY2018"},{"start":"2018-10-01","end":"2018-12-31","val":-0.4,"accn":"0001564590-19-009601","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-27"},{"start":"2018-10-01","end":"2018-12-31","val":-0.4,"accn":"0001564590-20-011186","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-16","frame":"CY2018Q4"},{"start":"2019-01-01","end":"2019-03-31","val":-0.21,"accn":"0001564590-19-019254","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"start":"2019-01-01","end":"2019-03-31","val":-0.21,"accn":"0001564590-20-011186","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-16"},{"start":"2019-01-01","end":"2019-03-31","val":-0.21,"accn":"0001564590-20-024253","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-11"},{"start":"2019-01-01","end":"2019-03-31","val":-0.21,"accn":"0001564590-21-009946","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-01","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-0.52,"accn":"0001564590-19-032128","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-06-30","val":-0.52,"accn":"0001564590-20-038897","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-10"},{"start":"2019-04-01","end":"2019-06-30","val":-0.31,"accn":"0001564590-19-032128","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-04-01","end":"2019-06-30","val":-0.31,"accn":"0001564590-20-011186","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-16"},{"start":"2019-04-01","end":"2019-06-30","val":-0.31,"accn":"0001564590-20-038897","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-10"},{"start":"2019-04-01","end":"2019-06-30","val":-0.31,"accn":"0001564590-21-009946","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-01","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":-0.85,"accn":"0001564590-19-042887","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-12"},{"start":"2019-01-01","end":"2019-09-30","val":-0.85,"accn":"0001564590-20-052544","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-09"},{"start":"2019-07-01","end":"2019-09-30","val":-0.33,"accn":"0001564590-19-042887","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-12"},{"start":"2019-07-01","end":"2019-09-30","val":-0.33,"accn":"0001564590-20-011186","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-16"},{"start":"2019-07-01","end":"2019-09-30","val":-0.33,"accn":"0001564590-20-052544","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-09"},{"start":"2019-07-01","end":"2019-09-30","val":-0.33,"accn":"0001564590-21-009946","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-01","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":-1.25,"accn":"0001564590-20-011186","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-16"},{"start":"2019-01-01","end":"2019-12-31","val":-1.25,"accn":"0001564590-21-009946","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-01"},{"start":"2019-01-01","end":"2019-12-31","val":-1.25,"accn":"0000950170-22-002555","fy":2021,"fp":"FY","form":"10-K","filed":"2022-03-01","frame":"CY2019"},{"start":"2019-10-01","end":"2019-12-31","val":-0.4,"accn":"0001564590-20-011186","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-16"},{"start":"2019-10-01","end":"2019-12-31","val":-0.4,"accn":"0001564590-21-009946","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-01","frame":"CY2019Q4"},{"start":"2020-01-01","end":"2020-03-31","val":-0.54,"accn":"0001564590-20-024253","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-11"},{"start":"2020-01-01","end":"2020-03-31","val":-0.54,"accn":"0001564590-21-009946","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-01"},{"start":"2020-01-01","end":"2020-03-31","val":-0.54,"accn":"0001564590-21-026129","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-10"},{"start":"2020-01-01","end":"2020-03-31","val":-0.54,"accn":"0000950170-22-002555","fy":2021,"fp":"FY","form":"10-K","filed":"2022-03-01","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-1.12,"accn":"0001564590-20-038897","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-10"},{"start":"2020-01-01","end":"2020-06-30","val":-1.12,"accn":"0000950170-21-001080","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-09"},{"start":"2020-04-01","end":"2020-06-30","val":-0.58,"accn":"0001564590-20-038897","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-10"},{"start":"2020-04-01","end":"2020-06-30","val":-0.58,"accn":"0001564590-21-009946","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-01"},{"start":"2020-04-01","end":"2020-06-30","val":-0.58,"accn":"0000950170-21-001080","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-09"},{"start":"2020-04-01","end":"2020-06-30","val":-0.58,"accn":"0000950170-22-002555","fy":2021,"fp":"FY","form":"10-K","filed":"2022-03-01","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":-1.92,"accn":"0001564590-20-052544","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-09"},{"start":"2020-01-01","end":"2020-09-30","val":-1.92,"accn":"0000950170-21-003800","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-09"},{"start":"2020-07-01","end":"2020-09-30","val":-0.8,"accn":"0001564590-20-052544","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-09"},{"start":"2020-07-01","end":"2020-09-30","val":-0.8,"accn":"0001564590-21-009946","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-01"},{"start":"2020-07-01","end":"2020-09-30","val":-0.8,"accn":"0000950170-21-003800","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-09"},{"start":"2020-07-01","end":"2020-09-30","val":-0.8,"accn":"0000950170-22-002555","fy":2021,"fp":"FY","form":"10-K","filed":"2022-03-01","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":-2.91,"accn":"0001564590-21-009946","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-01"},{"start":"2020-01-01","end":"2020-12-31","val":-2.91,"accn":"0000950170-22-002555","fy":2021,"fp":"FY","form":"10-K","filed":"2022-03-01","frame":"CY2020"},{"start":"2020-10-01","end":"2020-12-31","val":-0.97,"accn":"0001564590-21-009946","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-01"},{"start":"2020-10-01","end":"2020-12-31","val":-0.97,"accn":"0000950170-22-002555","fy":2021,"fp":"FY","form":"10-K","filed":"2022-03-01","frame":"CY2020Q4"},{"start":"2021-01-01","end":"2021-03-31","val":-0.98,"accn":"0001564590-21-026129","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-10"},{"start":"2021-01-01","end":"2021-03-31","val":-0.98,"accn":"0000950170-22-002555","fy":2021,"fp":"FY","form":"10-K","filed":"2022-03-01"},{"start":"2021-01-01","end":"2021-03-31","val":-0.98,"accn":"0000950170-22-008956","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-10","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":-2.06,"accn":"0000950170-21-001080","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-09"},{"start":"2021-04-01","end":"2021-06-30","val":-1.08,"accn":"0000950170-21-001080","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-09"},{"start":"2021-04-01","end":"2021-06-30","val":-1.08,"accn":"0000950170-22-002555","fy":2021,"fp":"FY","form":"10-K","filed":"2022-03-01","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":-3.36,"accn":"0000950170-21-003800","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-09"},{"start":"2021-07-01","end":"2021-09-30","val":-1.3,"accn":"0000950170-21-003800","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-09"},{"start":"2021-07-01","end":"2021-09-30","val":-1.3,"accn":"0000950170-22-002555","fy":2021,"fp":"FY","form":"10-K","filed":"2022-03-01","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":-5.16,"accn":"0000950170-22-002555","fy":2021,"fp":"FY","form":"10-K","filed":"2022-03-01","frame":"CY2021"},{"start":"2021-10-01","end":"2021-12-31","val":-1.79,"accn":"0000950170-22-002555","fy":2021,"fp":"FY","form":"10-K","filed":"2022-03-01","frame":"CY2021Q4"},{"start":"2022-01-01","end":"2022-03-31","val":-1.83,"accn":"0000950170-22-008956","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-10","frame":"CY2022Q1"}]}}