The period for goodwill arising from a business combination that is expected to be deductible for tax purposes.

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Represents the amount of each milestone achievement contingent consideration under business combination

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Represents the amount of each milestone achievement contingent consideration under business combination

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Represents the number of research and development milestone contingent consideration under business combination.

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The amount of contingent consideration transferred.

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Refers to the amount of holdback.

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Refers to the amount of retention to cover any post-closing indemnification claims.

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Number of months after closing holdback will be paid.

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The cash outflow less closing and indebtedness and transaction cost associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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Amount of liability recognized arising from contingent consideration in a business combination.

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Value of input used to measure contingent consideration liability from business combination.

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This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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Amount of assets acquired at the acquisition date.

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Amount of other liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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The amount of inventory recognized as of the acquisition date.

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The net gains or losses recognized for each transaction with the acquiree that was recognized separately from the acquisition of assets and assumptions of liabilities in the business combination.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Business Acquisitions (Details)		3 Months Ended			9 Months Ended			12 Months Ended
Business Acquisitions (Details)	Jun. 10, 2019 USD ($) item	Jan. 30, 2021 USD ($)	Jan. 25, 2020 USD ($)	Jan. 26, 2019 USD ($)	Jan. 30, 2021 USD ($)	Jan. 25, 2020 USD ($)	Jan. 26, 2019 USD ($)	Apr. 30, 2020 USD ($)	Feb. 26, 2020 USD ($)
Business Acquisitions
Ownership interest acquired	100.00%
Fair value of contingent consideration									$ 2,500,000
Business Combinations, Assets Acquired and Liabilities Assumed at Acquisition Date
Goodwill		$ 6,340,000			$ 6,340,000			$ 6,340,000
Fair value of consideration transferred:
Period of goodwill deduction					15 years
Supplemental Pro forma Information
Amortization of Intangible Assets		$ 662,000	$ 775,000		$ 2,086,000	$ 2,102,000
SG&A
Business Acquisitions
Business acquisitions gain								832,000
Supplemental Pro forma Information
Acquisition-related costs			344,000			1,036,000
In-process research and development
Business Acquisitions
Total milestone achievement								$ 1
Pulse Aerospace, LLC
Business Acquisitions
Ownership interest acquired	100.00%
Amount of cash less closing indebtedness and transaction costs	$ 20,650,000
Amount of retention to cover post closing indemnification claims	250,000
Amount of holdback	$ 1,250,000
Number of months after closing holdback will be paid	18 months
Number of research and development milestones \| item	2
Total milestone achievement	$ 5,000,000
Additional consideration	1,703,000
Business Combinations, Assets Acquired and Liabilities Assumed at Acquisition Date
Inventory	334,000
Goodwill	6,340,000
Other assets and liabilities assumed	(614,000)
Total net identified assets acquired	21,880,000
Fair value of consideration transferred:
Cash	18,677,000
Holdback	1,250,000
Retention	$ 250,000
Supplemental Pro forma Information
Revenue			61,891,000	$ 75,922,000		232,300,000	$ 228,533,000
Net income attributable to AeroVironment			$ (726,000)	$ 7,244,000		$ 24,227,000	$ 38,471,000
Pulse Aerospace, LLC \| Discount rate
Business Acquisitions
Measurement input	4.5
Pulse Aerospace, LLC \| Minimum
Business Acquisitions
Each milestone achievement	$ 0
Pulse Aerospace, LLC \| Maximum
Business Acquisitions
Each milestone achievement	2,500,000
Pulse Aerospace, LLC \| Technology
Business Combinations, Assets Acquired and Liabilities Assumed at Acquisition Date
Intangible assets	14,950,000
Pulse Aerospace, LLC \| In-process research and development
Business Combinations, Assets Acquired and Liabilities Assumed at Acquisition Date
Intangible assets	550,000
Pulse Aerospace, LLC \| Non-compete agreements
Business Combinations, Assets Acquired and Liabilities Assumed at Acquisition Date
Intangible assets	$ 320,000