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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
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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
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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: |