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A. ORGANIZATION AND OPERATIONS (Details)	Dec. 31, 2017 item
Accounting Policies [Abstract]
Number of networking end markets	4

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- Definition

Represents the number of networking end markets.

+ References

No definition available.

+ Details

Name:	aaoi_NumberOfNetworkingEndMarkets
Namespace Prefix:	aaoi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

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- References

No definition available.

+ Details

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