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Note S - Employee Benefit Plans (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 1.0	$ 0.8	$ 0.8
Global Technology, Inc. [Member]
Pension and Other Postretirement Benefits Cost (Reversal of Cost), Total	1.0	1.2	0.7
Prime World International Holdings, Ltd. (“Prime World”) [Member]
Pension and Other Postretirement Benefits Cost (Reversal of Cost), Total	$ 0.7
Prime World International Holdings, Ltd. (“Prime World”) [Member] | Foreign Plan [Member]
Pension and Other Postretirement Benefits Cost (Reversal of Cost), Total		$ 0.8	$ 0.8

X

- Definition

Amount of discretionary contributions made by an employer to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of cost (reversal of cost) for pension and other postretirement benefits.

+ References

No definition available.

+ Details

Name:	us-gaap_PensionAndOtherPostretirementBenefitExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	dei_LegalEntityAxis=aaoi_GlobalTechnologyIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=aaoi_PrimeWorldInternationalHoldingsLtdPrimeWorldMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RetirementPlanSponsorLocationAxis=us-gaap_ForeignPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: