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Segment Reporting - Additional Information (Detail)	12 Months Ended
	Apr. 30, 2018 Segment
Segment Reporting Information [Line Items]
Number of reportable segments	2
Firearms Segment
Segment Reporting Information [Line Items]
Number of reportable segments	1
Outdoor Products & Accessories Segment
Segment Reporting Information [Line Items]
Number of reportable segments	1

X

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
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_SegmentReportingInformationLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=aobc_FirearmsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=aobc_OutdoorProductsAndAccessoriesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: