{"cik":1664106,"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":"LOGICBIO THERAPEUTICS, INC.","units":{"USD/shares":[{"start":"2021-01-01","end":"2021-06-30","val":-0.65,"accn":"0001564590-22-029395","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-15"},{"start":"2021-04-01","end":"2021-06-30","val":-0.33,"accn":"0001564590-22-029395","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-15","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":-0.96,"accn":"0001564590-22-037503","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-14"},{"start":"2021-07-01","end":"2021-09-30","val":-0.31,"accn":"0001564590-22-037503","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-14","frame":"CY2021Q3"},{"start":"2022-01-01","end":"2022-06-30","val":-0.36,"accn":"0001564590-22-029395","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-15"},{"start":"2022-04-01","end":"2022-06-30","val":-0.15,"accn":"0001564590-22-029395","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-15","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":-0.53,"accn":"0001564590-22-037503","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-14"},{"start":"2022-07-01","end":"2022-09-30","val":-0.18,"accn":"0001564590-22-037503","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-14","frame":"CY2022Q3"}]}}