{"cik":1814140,"taxonomy":"us-gaap","tag":"EarningsPerShareBasic","label":"Earnings Per Share, Basic","description":"The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.","entityName":"Apexigen, Inc.","units":{"USD/shares":[{"start":"2021-01-01","end":"2021-09-30","val":-1.16,"accn":"0000950170-22-025024","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-14"},{"start":"2021-07-01","end":"2021-09-30","val":-0.4,"accn":"0000950170-22-025024","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-14","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":-1.6,"accn":"0000950170-23-003749","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-22","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":-0.5,"accn":"0000950170-23-022261","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-15","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":-0.95,"accn":"0000950170-23-041401","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-10"},{"start":"2022-04-01","end":"2022-06-30","val":-0.45,"accn":"0000950170-23-041401","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-10","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":-1.36,"accn":"0000950170-22-025024","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-14"},{"start":"2022-07-01","end":"2022-09-30","val":-0.41,"accn":"0000950170-22-025024","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-14","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":-1.62,"accn":"0000950170-23-003749","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-22","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":-0.25,"accn":"0000950170-23-022261","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-15","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":-0.5,"accn":"0000950170-23-041401","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-10"},{"start":"2023-04-01","end":"2023-06-30","val":-0.24,"accn":"0000950170-23-041401","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-10","frame":"CY2023Q2"}]}}