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Revenue from Contracts with Customers (Details) - USD ($) $ in Millions	12 Months Ended
	May 31, 2023	May 31, 2022
Revenue from External Customer [Line Items]
Right of return period (days)	30 days
Restocking charge (percent)	20.00%
Restocking charge period (months)	12 months
Additions to contract liabilities	$ 0.7	$ 2.2
Revenue recognized, including current period.	$ 0.7	$ 2.1
Minimum
Revenue from External Customer [Line Items]
Performance obligation payment term (days)	30 days
Maximum
Revenue from External Customer [Line Items]
Performance obligation payment term (days)	90 days

X

- Definition

Contract with Customer, Right of Return, Minimum Remaining Product Life Prior to Return

+ References

No definition available.

+ Details

Name:	ango_ContractwithCustomerRightofReturnMinimumRemainingProductLifePriortoReturn
Namespace Prefix:	ango_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Contract with Customer, Right of Return, Product Return Period After Purchase Date Requiring Pre-Approval

+ References

No definition available.

+ Details

Name:	ango_ContractwithCustomerRightofReturnProductReturnPeriodAfterPurchaseDateRequiringPreApproval
Namespace Prefix:	ango_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Contract with Customer, Right of Return, Restocking Charge

+ References

No definition available.

+ Details

Name:	ango_ContractwithCustomerRightofReturnRestockingCharge
Namespace Prefix:	ango_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Customer With Customer, Liability, Revenue Recognized, Including Current Period

+ References

No definition available.

+ Details

Name:	ango_CustomerWithCustomerLiabilityRevenueRecognizedIncludingCurrentPeriod
Namespace Prefix:	ango_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Revenue, Performance Obligation, Payment Term

+ References

No definition available.

+ Details

Name:	ango_RevenuePerformanceObligationPaymentTerm
Namespace Prefix:	ango_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration from customer has been received or is due, from business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130551-203045

+ Details

Name:	us-gaap_ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

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.

+ References

No definition available.

+ Details

Name:	us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: