{"cik":72444,"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":"Vaxart, Inc.","units":{"USD/shares":[{"start":"2011-07-01","end":"2012-06-30","val":-0.85,"accn":"0001437749-14-017648","fy":2014,"fp":"FY","form":"10-K","filed":"2014-09-30","frame":"CY2012"},{"start":"2012-07-01","end":"2013-06-30","val":-0.32,"accn":"0001437749-14-017648","fy":2014,"fp":"FY","form":"10-K","filed":"2014-09-30"},{"start":"2012-07-01","end":"2013-06-30","val":-0.32,"accn":"0001437749-15-017193","fy":2015,"fp":"FY","form":"10-K","filed":"2015-09-11","frame":"CY2013"},{"start":"2013-07-01","end":"2014-06-30","val":-0.35,"accn":"0001437749-14-017648","fy":2014,"fp":"FY","form":"10-K","filed":"2014-09-30"},{"start":"2013-07-01","end":"2014-06-30","val":-0.35,"accn":"0001437749-15-017193","fy":2015,"fp":"FY","form":"10-K","filed":"2015-09-11"},{"start":"2013-07-01","end":"2014-06-30","val":-0.35,"accn":"0001437749-16-038645","fy":2016,"fp":"FY","form":"10-K","filed":"2016-09-13","frame":"CY2014"},{"start":"2014-07-01","end":"2015-06-30","val":-0.54,"accn":"0001437749-15-017193","fy":2015,"fp":"FY","form":"10-K","filed":"2015-09-11"},{"start":"2014-07-01","end":"2015-06-30","val":-0.54,"accn":"0001437749-16-038645","fy":2016,"fp":"FY","form":"10-K","filed":"2016-09-13","frame":"CY2015"},{"start":"2015-07-01","end":"2015-12-31","val":-0.34,"accn":"0001437749-17-001767","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-02-06"},{"start":"2015-10-01","end":"2015-12-31","val":-0.17,"accn":"0001437749-17-001767","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-02-06","frame":"CY2015Q4"},{"start":"2015-07-01","end":"2016-03-31","val":-0.48,"accn":"0001437749-17-008297","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-05-08"},{"start":"2016-01-01","end":"2016-03-31","val":-0.14,"accn":"0001437749-17-008297","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-05-08","frame":"CY2016Q1"},{"start":"2015-07-01","end":"2016-06-30","val":-0.66,"accn":"0001437749-16-038645","fy":2016,"fp":"FY","form":"10-K","filed":"2016-09-13"},{"start":"2015-07-01","end":"2016-06-30","val":-0.66,"accn":"0001437749-17-015526","fy":2017,"fp":"FY","form":"10-K","filed":"2017-09-01","frame":"CY2016"},{"start":"2016-07-01","end":"2016-09-30","val":-0.26,"accn":"0001437749-17-018561","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-12-31","val":-0.49,"accn":"0001437749-17-001767","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-02-06"},{"start":"2016-07-01","end":"2016-12-31","val":-0.49,"accn":"0001437749-18-001749","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-02-06"},{"start":"2016-10-01","end":"2016-12-31","val":-0.24,"accn":"0001437749-17-001767","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-02-06"},{"start":"2016-10-01","end":"2016-12-31","val":-0.24,"accn":"0001437749-18-001749","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-02-06","frame":"CY2016Q4"},{"start":"2016-07-01","end":"2017-03-31","val":-0.61,"accn":"0001437749-17-008297","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-05-08"},{"start":"2017-01-01","end":"2017-03-31","val":-0.11,"accn":"0001437749-17-008297","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-05-08"},{"start":"2017-01-01","end":"2017-03-31","val":-25.84,"accn":"0001513162-19-000041","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-06","frame":"CY2017Q1"},{"start":"2016-07-01","end":"2017-06-30","val":-0.76,"accn":"0001437749-17-015526","fy":2017,"fp":"FY","form":"10-K","filed":"2017-09-01"},{"start":"2017-01-01","end":"2017-06-30","val":-57.22,"accn":"0001513162-18-000192","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-04-01","end":"2017-06-30","val":-31.37,"accn":"0001513162-18-000192","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2017-04-01","end":"2017-06-30","val":-31.37,"accn":"0001513162-19-000041","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-06","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":-78.58,"accn":"0001513162-18-000292","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":-0.14,"accn":"0001437749-17-018561","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":-21.36,"accn":"0001513162-18-000292","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2017-07-01","end":"2017-09-30","val":-21.36,"accn":"0001513162-19-000041","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-06","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":-91.65,"accn":"0001513162-19-000041","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-06","frame":"CY2017"},{"start":"2017-07-01","end":"2017-12-31","val":-0.23,"accn":"0001437749-18-001749","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-02-06"},{"start":"2017-10-01","end":"2017-12-31","val":-0.09,"accn":"0001437749-18-001749","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-02-06"},{"start":"2017-10-01","end":"2017-12-31","val":-13.16,"accn":"0001513162-19-000041","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-06","frame":"CY2017Q4"},{"start":"2018-01-01","end":"2018-06-30","val":-1.26,"accn":"0001513162-18-000192","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-01-01","end":"2018-06-30","val":-1.26,"accn":"0001437749-19-016036","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":-1.24,"accn":"0001513162-18-000192","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-10"},{"start":"2018-04-01","end":"2018-06-30","val":-1.24,"accn":"0001437749-19-016036","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-08","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":-2.23,"accn":"0001513162-18-000292","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-01-01","end":"2018-09-30","val":-2.23,"accn":"0001437749-19-022502","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-12"},{"start":"2018-07-01","end":"2018-09-30","val":-0.92,"accn":"0001513162-18-000292","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-13"},{"start":"2018-07-01","end":"2018-09-30","val":-0.92,"accn":"0001437749-19-022502","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-12","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":-2.9,"accn":"0001513162-19-000041","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-06"},{"start":"2018-01-01","end":"2018-12-31","val":-2.9,"accn":"0001437749-20-005683","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-19"},{"start":"2018-01-01","end":"2018-12-31","val":-2.9,"accn":"0001437749-21-004115","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-25","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":-0.18,"accn":"0001437749-20-005683","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-19"},{"start":"2019-01-01","end":"2019-03-31","val":-0.18,"accn":"0001437749-20-010425","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-12"},{"start":"2019-01-01","end":"2019-03-31","val":-0.18,"accn":"0001437749-21-004115","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-25"},{"start":"2019-01-01","end":"2019-03-31","val":-0.18,"accn":"0001437749-22-004354","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-24","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-0.64,"accn":"0001437749-19-016036","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-08"},{"start":"2019-01-01","end":"2019-06-30","val":-0.64,"accn":"0001437749-20-016864","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":-0.39,"accn":"0001437749-19-016036","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-08"},{"start":"2019-04-01","end":"2019-06-30","val":-0.39,"accn":"0001437749-20-005683","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-19"},{"start":"2019-04-01","end":"2019-06-30","val":-0.39,"accn":"0001437749-20-016864","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":-0.39,"accn":"0001437749-21-004115","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-25"},{"start":"2019-04-01","end":"2019-06-30","val":-0.39,"accn":"0001437749-22-004354","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-24","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":-0.96,"accn":"0001437749-19-022502","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-12"},{"start":"2019-01-01","end":"2019-09-30","val":-0.96,"accn":"0001437749-20-023615","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-12"},{"start":"2019-07-01","end":"2019-09-30","val":-0.32,"accn":"0001437749-19-022502","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-12"},{"start":"2019-07-01","end":"2019-09-30","val":-0.32,"accn":"0001437749-20-005683","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-19"},{"start":"2019-07-01","end":"2019-09-30","val":-0.32,"accn":"0001437749-20-023615","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-12"},{"start":"2019-07-01","end":"2019-09-30","val":-0.32,"accn":"0001437749-21-004115","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-25"},{"start":"2019-07-01","end":"2019-09-30","val":-0.32,"accn":"0001437749-22-004354","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-24","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":-0.86,"accn":"0001437749-20-005683","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-19"},{"start":"2019-01-01","end":"2019-12-31","val":-0.86,"accn":"0001437749-21-004115","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-25"},{"start":"2019-01-01","end":"2019-12-31","val":-0.86,"accn":"0001437749-22-004354","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-24","frame":"CY2019"},{"start":"2019-10-01","end":"2019-12-31","val":-0.13,"accn":"0001437749-20-005683","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-19"},{"start":"2019-10-01","end":"2019-12-31","val":-0.13,"accn":"0001437749-21-004115","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-25"},{"start":"2019-10-01","end":"2019-12-31","val":-0.13,"accn":"0001437749-22-004354","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-24","frame":"CY2019Q4"},{"start":"2020-01-01","end":"2020-03-31","val":-0.02,"accn":"0001437749-20-010425","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-12"},{"start":"2020-01-01","end":"2020-03-31","val":-0.02,"accn":"0001437749-21-004115","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-25"},{"start":"2020-01-01","end":"2020-03-31","val":-0.02,"accn":"0001437749-21-011133","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-06"},{"start":"2020-01-01","end":"2020-03-31","val":-0.02,"accn":"0001437749-22-004354","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-24","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-0.15,"accn":"0001437749-20-016864","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-06"},{"start":"2020-01-01","end":"2020-06-30","val":-0.15,"accn":"0001437749-21-018764","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":-0.12,"accn":"0001437749-20-016864","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-06"},{"start":"2020-04-01","end":"2020-06-30","val":-0.12,"accn":"0001437749-21-004115","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-25"},{"start":"2020-04-01","end":"2020-06-30","val":-0.12,"accn":"0001437749-21-018764","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":-0.12,"accn":"0001437749-22-004354","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-24","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":-0.23,"accn":"0001437749-20-023615","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-12"},{"start":"2020-01-01","end":"2020-09-30","val":-0.23,"accn":"0001437749-21-025287","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-04"},{"start":"2020-07-01","end":"2020-09-30","val":-0.08,"accn":"0001437749-20-023615","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-12"},{"start":"2020-07-01","end":"2020-09-30","val":-0.08,"accn":"0001437749-21-004115","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-25"},{"start":"2020-07-01","end":"2020-09-30","val":-0.08,"accn":"0001437749-21-025287","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-04"},{"start":"2020-07-01","end":"2020-09-30","val":-0.08,"accn":"0001437749-22-004354","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-24","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":-0.36,"accn":"0001437749-21-004115","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-25"},{"start":"2020-01-01","end":"2020-12-31","val":-0.36,"accn":"0001437749-22-004354","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-24","frame":"CY2020"},{"start":"2020-10-01","end":"2020-12-31","val":-0.13,"accn":"0001437749-21-004115","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-25"},{"start":"2020-10-01","end":"2020-12-31","val":-0.13,"accn":"0001437749-22-004354","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-24","frame":"CY2020Q4"},{"start":"2021-01-01","end":"2021-03-31","val":-0.14,"accn":"0001437749-21-011133","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-06"},{"start":"2021-01-01","end":"2021-03-31","val":-0.14,"accn":"0001437749-22-004354","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-24","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":-0.27,"accn":"0001437749-21-018764","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":-0.13,"accn":"0001437749-21-018764","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":-0.13,"accn":"0001437749-22-004354","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-24","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":-0.41,"accn":"0001437749-21-025287","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":-0.14,"accn":"0001437749-21-025287","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":-0.14,"accn":"0001437749-22-004354","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-24","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":-0.58,"accn":"0001437749-22-004354","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-24","frame":"CY2021"},{"start":"2021-10-01","end":"2021-12-31","val":-0.17,"accn":"0001437749-22-004354","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-24","frame":"CY2021Q4"}]}}