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Organization and Significant Accounting Policies - Government Contracts (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Jul. 31, 2021 | Aug. 01, 2020
Numerator for basic earnings per share: |  |
Net income attributable to AeroVironment, Inc. | $ (13,981) | $ 10,080
Denominator for basic earnings per share: |  |
Weighted average common shares | 24,620,180 | 23,893,001
Dilutive effect of employee stock options, restricted stock and restricted stock units |  | 293,227
Denominator for diluted earnings (loss) per share | 24,620,180 | 24,186,228
Number of shares reserved for issuance | 0 |
Number of anti-dilutive shares | 3,871 | 844
Number of anti-dilutive due to loss | 276,107 |

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