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Recapitalization - Calculation of Legacy AEye Shares (Details) - shares |  |  | 7 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Aug. 16, 2021 | Aug. 15, 2021 | Aug. 15, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Schedule Of Reverse Recapitalization [Line Items] |  |  |  |  |  |
Exercise of common stock options (in shares) |  |  |  | 312,037 |  |
Legacy AEye shares (in shares) | 122,509,667 |  |  |  |  |
AEye Technologies |  |  |  |  |  |
Schedule Of Reverse Recapitalization [Line Items] |  |  |  |  |  |
Legacy AEye shares (in shares) | 122,509,667 |  |  |  |  |
Common Stock |  |  |  |  |  |
Schedule Of Reverse Recapitalization [Line Items] |  |  |  |  |  |
Shares outstanding (in shares) |  |  |  | 155,137,237 | 101,286,645 | 102,945,482
Exercise of common stock options (in shares) |  |  | 204,119 | 312,037 | 1,877,233 |
Repurchase of common stock (in shares) |  |  |  |  | (3,536,070) |
Conversion of Convertible Notes and Accrued Interest (in shares) | 20,778,097 |  | 20,778,097 | 20,778,097 |  |
Exercise of common stock and Series A preferred stock warrants (in shares) |  |  | 240,806 | 240,806 |  |
Common Stock | Reverse Recapitalization, Converted Shares |  |  |  |  |  |
Schedule Of Reverse Recapitalization [Line Items] |  |  |  |  |  |
Shares outstanding (in shares) |  |  |  |  |  | 41,984,908
Common Stock | AEye Technologies |  |  |  |  |  |
Schedule Of Reverse Recapitalization [Line Items] |  |  |  |  |  |
Shares outstanding (in shares) |  |  |  |  |  | 11,283,838
Exercise of common stock options (in shares) |  |  | 54,859 |  | 504,524 |
Repurchase of common stock (in shares) |  |  |  |  | (950,352) |
Conversion of Convertible Notes and Accrued Interest (in shares) |  | 5,584,308 | 5,584,308 |  |  |
Exercise of common stock and Series A preferred stock warrants (in shares) |  |  | 64,719 |  |  |
Preferred Stock |  |  |  |  |  |
Schedule Of Reverse Recapitalization [Line Items] |  |  |  |  |  |
Shares outstanding (in shares) |  |  |  | 0 | 0 | 0
Preferred Stock | Reverse Recapitalization, Converted Shares |  |  |  |  |  |
Schedule Of Reverse Recapitalization [Line Items] |  |  |  |  |  |
Shares outstanding (in shares) |  |  |  |  |  | 60,960,574
Preferred Stock | AEye Technologies |  |  |  |  |  |
Schedule Of Reverse Recapitalization [Line Items] |  |  |  |  |  |
Shares outstanding (in shares) |  |  |  |  |  | 16,383,725

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