$AAOI
APPLIED OPTOELECTRONICS, INC. Stock $aaoi

$aaoi Overview Financials Valuation SEC Filings Company Website

2020 Q4 Form 10-K Financial Statement

#000143774921004108 Filed on February 25, 2021

Income Statement

Concept	2020 Q4	2019 Q4	2019 Q3
Revenue	$52.33M	$48.66M	$46.08M
YoY Change	7.54%	-16.13%	-18.27%
Cost Of Revenue	$41.05M	$37.32M	$34.11M
YoY Change	9.99%	-21.4%	-12.2%
Gross Profit	$11.28M	$11.34M	$11.98M
YoY Change	-0.52%	7.58%	-31.71%
Gross Profit Margin	21.55%	23.3%	25.99%
Selling, General & Admin	$13.61M	$12.79M	$12.51M
YoY Change	6.4%	11.51%	-3.51%
% of Gross Profit	120.71%	112.85%	104.43%
Research & Development	$10.83M	$10.60M	$10.47M
YoY Change	2.16%	-6.57%	-26.19%
% of Gross Profit	96.0%	93.48%	87.39%
Depreciation & Amortization	$6.380M	$6.030M	$5.900M
YoY Change	5.8%	-23.57%	-20.27%
% of Gross Profit	56.58%	53.19%	49.27%
Operating Expenses	$24.44M	$23.39M	$22.97M
YoY Change	4.48%	2.52%	-15.36%
Operating Profit	-$13.16M	-$12.05M	-$11.00M
YoY Change	9.18%	-1.82%	14.49%
Interest Expense	-$1.200M	-$1.500M	$1.517M
YoY Change	-20.0%	150.0%	453.65%
% of Operating Profit
Other Income/Expense, Net	-$274.0K	-$1.109M	$276.0K
YoY Change	-75.29%	-1661.97%	-52.25%
Pretax Income	-$13.44M	-$13.16M	-$10.72M
YoY Change	2.07%	7.84%	18.77%
Income Tax	$4.000K	$22.27M	-$1.940M
% Of Pretax Income
Net Earnings	-$13.44M	-$35.43M	-$8.780M
YoY Change	-62.07%	313.52%	135.26%
Net Earnings / Revenue	-25.68%	-72.81%	-19.05%
Basic Earnings Per Share	-$0.57	-$1.76	-$0.44
Diluted Earnings Per Share	-$0.57	-$1.76	-$0.44
COMMON SHARES
Basic Shares Outstanding	22.98M	20.11M	20.02M
Diluted Shares Outstanding			20.02M

Balance Sheet

Concept	2020 Q4	2019 Q4	2019 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$43.40M	$60.00M	$70.00M
YoY Change	-27.67%	7.91%	12.18%
Cash & Equivalents	$43.43M	$59.98M	$69.99M
Short-Term Investments
Other Short-Term Assets	$11.90M	$13.00M	$8.100M
YoY Change	-8.46%	-5.11%	-33.06%
Inventory	$110.4M	$85.03M	$82.12M
Prepaid Expenses
Receivables	$43.04M	$34.65M	$29.71M
Other Receivables	$400.0K	$200.0K	$800.0K
Total Short-Term Assets	$209.2M	$192.8M	$190.6M
YoY Change	8.49%	-0.76%	-11.41%
LONG-TERM ASSETS
Property, Plant & Equipment	$253.0M	$248.4M	$245.5M
YoY Change	1.83%	6.08%	10.35%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$982.0K	$724.0K	$973.0K
YoY Change	35.64%	-89.43%	-97.1%
Total Long-Term Assets	$271.6M	$274.0M	$293.2M
YoY Change	-0.87%	0.53%	10.28%
TOTAL ASSETS
Total Short-Term Assets	$209.2M	$192.8M	$190.6M
Total Long-Term Assets	$271.6M	$274.0M	$293.2M
Total Assets	$480.8M	$466.8M	$483.9M
YoY Change	2.99%	0.0%	0.58%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$29.48M	$32.83M	$28.07M
YoY Change	-10.19%	9.76%	-47.72%
Accrued Expenses	$18.51M	$17.86M	$15.54M
YoY Change	3.62%	-7.4%	-23.81%
Deferred Revenue	$303.0K	$312.0K
YoY Change	-2.88%	-26.76%
Short-Term Debt	$15.90M	$6.300M	$4.100M
YoY Change	152.38%	36.96%
Long-Term Debt Due	$38.27M	$33.37M	$15.80M
YoY Change	14.67%	41.47%	90.4%
Total Short-Term Liabilities	$103.1M	$91.36M	$64.42M
YoY Change	12.91%	18.0%	-22.1%
LONG-TERM LIABILITIES
Long-Term Debt	$13.90M	$16.55M	$109.2M
YoY Change	-16.0%	-72.56%	73.61%
Other Long-Term Liabilities	$7.900M	$8.000M	$8.000M
YoY Change	-1.25%
Total Long-Term Liabilities	$13.90M	$16.55M	$117.2M
YoY Change	-16.0%	-72.56%	86.33%
TOTAL LIABILITIES
Total Short-Term Liabilities	$103.1M	$91.36M	$64.42M
Total Long-Term Liabilities	$13.90M	$16.55M	$117.2M
Total Liabilities	$202.9M	$193.0M	$181.6M
YoY Change	5.12%	40.14%	24.72%
SHAREHOLDERS EQUITY
Retained Earnings	-$88.51M	-$30.06M	$5.372M
YoY Change	194.47%	-183.51%
Common Stock	$25.00K	$20.00K	$20.00K
YoY Change	25.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$277.9M	$273.8M	$302.3M
YoY Change
Total Liabilities & Shareholders Equity	$480.8M	$466.8M	$483.9M
YoY Change	2.99%	0.0%	0.58%

Cashflow Statement

Concept	2020 Q4	2019 Q4	2019 Q3
OPERATING ACTIVITIES
Net Income	-$13.44M	-$35.43M	-$8.780M
YoY Change	-62.07%	313.52%	135.26%
Depreciation, Depletion And Amortization	$6.380M	$6.030M	$5.900M
YoY Change	5.8%	-23.57%	-20.27%
Cash From Operating Activities	-$14.10M	-$3.160M	-$5.760M
YoY Change	346.2%	-72.76%	-176.29%
INVESTING ACTIVITIES
Capital Expenditures	-$3.770M	-$2.950M	$120.0K
YoY Change	27.8%	-85.04%	-100.56%
Acquisitions
YoY Change
Other Investing Activities	-$490.0K	-$2.170M	-$6.280M
YoY Change	-77.42%	-115.25%	-56.11%
Cash From Investing Activities	-$4.270M	-$5.120M	-$6.160M
YoY Change	-16.6%	-6.57%	-82.8%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	10.46M	3.010M	250.0K
YoY Change	247.51%	-82.15%	-97.11%
NET CHANGE
Cash From Operating Activities	-14.10M	-3.160M	-5.760M
Cash From Investing Activities	-4.270M	-5.120M	-6.160M
Cash From Financing Activities	10.46M	3.010M	250.0K
Net Change In Cash	-7.910M	-5.270M	-11.67M
YoY Change	50.09%	2295.45%	-40.52%
FREE CASH FLOW
Cash From Operating Activities	-$14.10M	-$3.160M	-$5.760M
Capital Expenditures	-$3.770M	-$2.950M	$120.0K
Free Cash Flow	-$10.33M	-$210.0K	-$5.880M
YoY Change	4819.05%	-102.59%	-120.25%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2019Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000
CY2020Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2019Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
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CY2019Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
CY2019Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0
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CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	45000000
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2020Q4	us-gaap	Prepaid Taxes PrepaidTaxes	2000	USD
CY2019Q4	us-gaap	Prepaid Taxes PrepaidTaxes	224000	USD
CY2020Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	5213000	USD
CY2019Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	5869000	USD
CY2020Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	0	USD
CY2019Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	7287000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	982000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	724000	USD
CY2020Q4	us-gaap	Assets Assets	480805000	USD
CY2019Q4	us-gaap	Assets Assets	466825000	USD
CY2020Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	38265000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	33371000	USD
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	25110000
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	25110000
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	20140000
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	20140000
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	500000	USD
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CY2020Q4	us-gaap	Indefinite Lived Contractual Rights IndefiniteLivedContractualRights	5854000	USD
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CY2019Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	119000	USD
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CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	4081000	USD
CY2020Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	29482000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	32828000	USD
CY2020Q4	aaoi	Bank Acceptances Executed And Outstanding Current BankAcceptancesExecutedAndOutstandingCurrent	15860000	USD
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CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	1012000	USD
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CY2020Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	18000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	17000	USD
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CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	17864000	USD
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	103148000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	91355000	USD
CY2020Q4	us-gaap	Notes Payable To Bank Noncurrent NotesPayableToBankNoncurrent	13904000	USD
CY2019Q4	us-gaap	Notes Payable To Bank Noncurrent NotesPayableToBankNoncurrent	16552000	USD
CY2020Q4	us-gaap	Convertible Long Term Notes Payable ConvertibleLongTermNotesPayable	77854000	USD
CY2019Q4	us-gaap	Convertible Long Term Notes Payable ConvertibleLongTermNotesPayable	77041000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	7926000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	7983000	USD
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	82000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	100000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	202914000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	193031000	USD
CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2019Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
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CY2019Q4	us-gaap	Common Stock Value CommonStockValue	20000	USD
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CY2019Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	303401000	USD
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CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	430000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-88509000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-30057000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	277891000	USD
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CY2019	us-gaap	Gross Profit GrossProfit	46201000	USD
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CY2020	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	43393000	USD
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CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-51387000	USD
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CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7228000	USD
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CY2020	us-gaap	Net Income Loss NetIncomeLoss	-58452000	USD
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CY2018	us-gaap	Net Income Loss NetIncomeLoss	-2146000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	329094000	USD
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	14000	USD
CY2019	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	-897000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	11804000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-172000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-66049000	USD
CY2020	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	39310000	USD
CY2020	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	30000	USD
CY2020	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	-1097000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	13046000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	11260000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-58452000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	277891000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-58452000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-66049000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-2146000	USD
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	32000	USD
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	0	USD
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	0	USD
CY2020	us-gaap	Inventory Lifo Reserve Period Charge InventoryLIFOReservePeriodCharge	3930000	USD
CY2019	us-gaap	Inventory Lifo Reserve Period Charge InventoryLIFOReservePeriodCharge	6774000	USD
CY2018	us-gaap	Inventory Lifo Reserve Period Charge InventoryLIFOReservePeriodCharge	7166000	USD
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	24733000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	24014000	USD
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	29698000	USD
CY2020	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	900000	USD
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	892000	USD
CY2018	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	42000	USD
CY2020	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	7348000	USD
CY2019	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	14570000	USD
CY2018	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-8964000	USD
CY2020	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-15000	USD
CY2019	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-13000	USD
CY2018	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-7000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	13046000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	11804000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	11120000	USD
CY2020	us-gaap	Unrealized Gain Loss On Foreign Currency Derivatives Net Before Tax UnrealizedGainLossOnForeignCurrencyDerivativesNetBeforeTax	1152000	USD
CY2019	us-gaap	Unrealized Gain Loss On Foreign Currency Derivatives Net Before Tax UnrealizedGainLossOnForeignCurrencyDerivativesNetBeforeTax	247000	USD
CY2018	us-gaap	Unrealized Gain Loss On Foreign Currency Derivatives Net Before Tax UnrealizedGainLossOnForeignCurrencyDerivativesNetBeforeTax	548000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	8421000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	4351000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-29316000	USD
CY2020	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	389000	USD
CY2019	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	4000	USD
CY2018	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	-0	USD
CY2020	us-gaap	Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes	-188000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes	-961000	USD
CY2018	us-gaap	Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes	-230000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	23674000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-1560000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	28403000	USD
CY2020	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-1220000	USD
CY2019	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-5514000	USD
CY2018	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	2939000	USD
CY2020	aaoi	Increase Decrease In Operating Right Of Use Asset IncreaseDecreaseInOperatingRightOfUseAsset	407000	USD
CY2019	aaoi	Increase Decrease In Operating Right Of Use Asset IncreaseDecreaseInOperatingRightOfUseAsset	847000	USD
CY2018	aaoi	Increase Decrease In Operating Right Of Use Asset IncreaseDecreaseInOperatingRightOfUseAsset	0	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-3347000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	3150000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-13714000	USD
CY2020	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	1000	USD
CY2019	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	0	USD
CY2018	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-7390000	USD
CY2020	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	44000	USD
CY2019	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-308000	USD
CY2018	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	554000	USD
CY2020	aaoi	Increase Decrease In Operating And Finance Lease Liability IncreaseDecreaseInOperatingAndFinanceLeaseLiability	-438000	USD
CY2019	aaoi	Increase Decrease In Operating And Finance Lease Liability IncreaseDecreaseInOperatingAndFinanceLeaseLiability	-896000	USD
CY2018	aaoi	Increase Decrease In Operating And Finance Lease Liability IncreaseDecreaseInOperatingAndFinanceLeaseLiability	0	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-44009000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-1754000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	14029000	USD
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Shortterm Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments	0	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Shortterm Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments	0	USD
CY2018	us-gaap	Proceeds From Maturities Prepayments And Calls Of Shortterm Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments	36000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	15795000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	28789000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	71854000	USD
CY2020	aaoi	Payments To Acquire Land Use Rights PaymentsToAcquireLandUseRights	-0	USD
CY2019	aaoi	Payments To Acquire Land Use Rights PaymentsToAcquireLandUseRights	-0	USD
CY2018	aaoi	Payments To Acquire Land Use Rights PaymentsToAcquireLandUseRights	5591000	USD
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	216000	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	1000	USD
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	697000	USD
CY2020	us-gaap	Increase Decrease In Deposits Outstanding IncreaseDecreaseInDepositsOutstanding	3279000	USD
CY2019	us-gaap	Increase Decrease In Deposits Outstanding IncreaseDecreaseInDepositsOutstanding	2688000	USD
CY2018	us-gaap	Increase Decrease In Deposits Outstanding IncreaseDecreaseInDepositsOutstanding	-674000	USD
CY2020	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	489000	USD
CY2019	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	640000	USD
CY2018	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	476000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-19347000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-32116000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-76514000	USD
CY2020	aaoi	Proceeds From Issuance Of Notes Payable And Longterm Debt Net Of Debt Issuance Costs ProceedsFromIssuanceOfNotesPayableAndLongtermDebtNetOfDebtIssuanceCosts	6229000	USD
CY2019	aaoi	Proceeds From Issuance Of Notes Payable And Longterm Debt Net Of Debt Issuance Costs ProceedsFromIssuanceOfNotesPayableAndLongtermDebtNetOfDebtIssuanceCosts	13661000	USD
CY2018	aaoi	Proceeds From Issuance Of Notes Payable And Longterm Debt Net Of Debt Issuance Costs ProceedsFromIssuanceOfNotesPayableAndLongtermDebtNetOfDebtIssuanceCosts	47849000	USD
CY2020	aaoi	Repayments Of Principals On Longterm Debt And Notes Payable RepaymentsOfPrincipalsOnLongtermDebtAndNotesPayable	5233000	USD
CY2019	aaoi	Repayments Of Principals On Longterm Debt And Notes Payable RepaymentsOfPrincipalsOnLongtermDebtAndNotesPayable	43363000	USD
CY2018	aaoi	Repayments Of Principals On Longterm Debt And Notes Payable RepaymentsOfPrincipalsOnLongtermDebtAndNotesPayable	3133000	USD
CY2020	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	95730000	USD
CY2019	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	83434000	USD
CY2018	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	155078000	USD
CY2020	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	96006000	USD
CY2019	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	88299000	USD
CY2018	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	165569000	USD
CY2020	us-gaap	Proceeds From Bank Debt ProceedsFromBankDebt	39958000	USD
CY2019	us-gaap	Proceeds From Bank Debt ProceedsFromBankDebt	13638000	USD
CY2018	us-gaap	Proceeds From Bank Debt ProceedsFromBankDebt	4595000	USD
CY2020	us-gaap	Repayments Of Bank Debt RepaymentsOfBankDebt	31338000	USD
CY2019	us-gaap	Repayments Of Bank Debt RepaymentsOfBankDebt	11952000	USD
CY2018	us-gaap	Repayments Of Bank Debt RepaymentsOfBankDebt	-0	USD
CY2020	aaoi	Proceeds From Issuance Of Convertible Senior Notes Net Of Debt Issuance Costs ProceedsFromIssuanceOfConvertibleSeniorNotesNetOfDebtIssuanceCosts	-18000	USD
CY2019	aaoi	Proceeds From Issuance Of Convertible Senior Notes Net Of Debt Issuance Costs ProceedsFromIssuanceOfConvertibleSeniorNotesNetOfDebtIssuanceCosts	76362000	USD
CY2018	aaoi	Proceeds From Issuance Of Convertible Senior Notes Net Of Debt Issuance Costs ProceedsFromIssuanceOfConvertibleSeniorNotesNetOfDebtIssuanceCosts	0	USD
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	17000	USD
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	13000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	14000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	120000	USD
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	130000	USD
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	111000	USD
CY2020	us-gaap	Lease Cost LeaseCost	1368000	USD
CY2019	us-gaap	Lease Cost LeaseCost	1345000	USD
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1080000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	897000	USD
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	4137000	USD
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	39203000	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	47441000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	42596000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	34803000	USD
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	-999000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	298000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	1738000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-16914000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	9024000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-25944000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	67028000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	58004000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	83948000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	50114000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	67028000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	58004000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	4971000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	3172000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	848000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-364000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-890000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	8470000	USD
CY2020	aaoi	Increase Decrease In Accounts Payable Related To Property And Equipment Additions IncreaseDecreaseInAccountsPayableRelatedToPropertyAndEquipmentAdditions	-2326000	USD
CY2019	aaoi	Increase Decrease In Accounts Payable Related To Property And Equipment Additions IncreaseDecreaseInAccountsPayableRelatedToPropertyAndEquipmentAdditions	3869000	USD
CY2018	aaoi	Increase Decrease In Accounts Payable Related To Property And Equipment Additions IncreaseDecreaseInAccountsPayableRelatedToPropertyAndEquipmentAdditions	-1151000	USD
CY2020	aaoi	Increase Decrease In Deposits And Prepaid For Equipment Related To Property And Equipment Additions IncreaseDecreaseInDepositsAndPrepaidForEquipmentRelatedToPropertyAndEquipmentAdditions	-64000	USD
CY2019	aaoi	Increase Decrease In Deposits And Prepaid For Equipment Related To Property And Equipment Additions IncreaseDecreaseInDepositsAndPrepaidForEquipmentRelatedToPropertyAndEquipmentAdditions	8801000	USD
CY2018	aaoi	Increase Decrease In Deposits And Prepaid For Equipment Related To Property And Equipment Additions IncreaseDecreaseInDepositsAndPrepaidForEquipmentRelatedToPropertyAndEquipmentAdditions	0	USD
CY2020	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<table border="0" cellpadding="0" cellspacing="0" style="width: 100%; text-indent: 0px;"><tbody><tr style="vertical-align: top;"><td style="width: 36pt;"><p style="margin: 0pt; text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt;"><em style="font: inherit;">8.</em></p> </td><td> <p style="margin: 0pt; text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt;"><i>Concentration of Credit Risk and Significant Customers</i></p> </td></tr> </tbody></table> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"> </p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;text-indent:36pt;">Financial instruments which potentially subject the Company to concentrations of credit risk include cash, cash equivalents and accounts receivable. The Company places all cash and cash equivalents with high-credit quality financial institutions.</p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;text-indent:36pt;"> </p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;text-indent:36pt;">The Company performs ongoing credit valuations of its customers’ financial condition whenever deemed necessary and generally does <em style="font: inherit;">not</em> require deposits or collateral to support customer receivables. The historical amount of losses on uncollectible accounts has been within the Company’s estimates. The Company generates much of its revenue from a limited number of customers. In <em style="font: inherit;">2020,</em> <em style="font: inherit;">2019</em> and <em style="font: inherit;">2018</em>, its top <span style="-sec-ix-hidden:c69603831"><span style="-sec-ix-hidden:c69604570"><span style="-sec-ix-hidden:c69604571"><span style="-sec-ix-hidden:c69604572">five</span></span></span></span> customers represented 73.3%, 80.7%, and 85.7% of its revenue, respectively. In <em style="font: inherit;">2020</em>, Microsoft and Amazon represented 38.3% and 11.5% of its revenue, respectively. In <em style="font: inherit;">2019</em>, Microsoft, Amazon, Facebook and Cisco represented 32.2%, 24.0%, 10.9%, and 10.0% of its revenue, respectively. The <span style="-sec-ix-hidden:c69603843">five</span> largest receivable balances for customers represented an aggregate of 64.6% and 82.0% of total accounts receivable at <em style="font: inherit;"> December 31, 2020 </em>and <em style="font: inherit;">2019</em>, respectively. As of <em style="font: inherit;"> December 31, 2020</em>, Microsoft and Amazon represented 20.9% and 8.5% of total accounts receivable, respectively. As of <em style="font: inherit;"> December 31, 2019</em>, Microsoft and Amazon represented 32.0%, and 33.0% of total accounts receivable, respectively. <em style="font: inherit;">No</em> other customer represented greater than <em style="font: inherit;">ten</em> percent of revenue in <em style="font: inherit;">2020,</em> <em style="font: inherit;">2019</em> or <em style="font: inherit;">2018</em> had greater than <em style="font: inherit;">ten</em> percent of total accounts receivable at <em style="font: inherit;"> December 31, 2020 </em>or <em style="font: inherit;">2019.</em> </p> <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"> </p>
CY2020	us-gaap	Use Of Estimates UseOfEstimates	<table border="0" cellpadding="0" cellspacing="0" style="width: 100%; text-indent: 0px;"><tbody><tr style="vertical-align: top;"><td style="width: 36pt;"><p style="margin: 0pt; text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt;"><em style="font: inherit;">2.</em></p> </td><td> <p style="margin: 0pt; text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt;"><i>Use of Estimates</i></p> </td></tr> </tbody></table> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"> </p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;text-indent:36pt;">The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported. Actual results could differ from those estimates in the consolidated financial statements and accompanying notes. Significant estimates and assumptions that impact these financial statements relate to, among other things, allowance for doubtful accounts, inventory reserve, product warranty costs, share-based compensation expense, estimated useful lives of property and equipment, and taxes.</p>
CY2020Q4	us-gaap	Cash Uninsured Amount CashUninsuredAmount	38700000	USD
CY2020Q4	aaoi	Number Of Patents Issued NumberOfPatentsIssued	295	pure
CY2017Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	1118000	USD
CY2020	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	457000	USD
CY2019	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	1261000	USD
CY2018	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	4888000	USD
CY2020	us-gaap	Product Warranty Expense ProductWarrantyExpense	339000	USD
CY2019	us-gaap	Product Warranty Expense ProductWarrantyExpense	1087000	USD
CY2018	us-gaap	Product Warranty Expense ProductWarrantyExpense	4765000	USD
CY2020Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	703000	USD
CY2019Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	821000	USD
CY2018Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	995000	USD
CY2020Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	700000	USD
CY2019Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	800000	USD
CY2019Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	821000	USD
CY2018Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	995000	USD
CY2020	us-gaap	Advertising Expense AdvertisingExpense	400000	USD
CY2019	us-gaap	Advertising Expense AdvertisingExpense	500000	USD
CY2018	us-gaap	Advertising Expense AdvertisingExpense	500000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	234623000	USD
CY2020	aaoi	Percentage Of Revenue PercentageOfRevenue	1.000	pure
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	190872000	USD
CY2019	aaoi	Percentage Of Revenue PercentageOfRevenue	1.000	pure
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	267465000	USD
CY2018	aaoi	Percentage Of Revenue PercentageOfRevenue	1.000	pure
CY2020	us-gaap	Operating Lease Expense OperatingLeaseExpense	1206000	USD
CY2019	us-gaap	Operating Lease Expense OperatingLeaseExpense	1229000	USD
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	32000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	5000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	1334000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	22000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	1328000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	22000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	1243000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	65000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	1247000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	0	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	1273000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	0	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	4190000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	0	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	10615000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	109000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	1677000	USD
CY2020Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	9000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	8938000	USD
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	100000	USD
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y1M2D
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P9Y2M23D
CY2020Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P2Y9M29D
CY2019Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P3Y9M29D
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0323	pure
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0313	pure
CY2020Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0500	pure
CY2019Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0500	pure
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	1351000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	1325000	USD
CY2020	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	5000	USD
CY2019	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	8000	USD
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	17000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	2000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	712000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	64000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	0	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	124000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	7051000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	50114000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	67028000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	43425000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	59977000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	6689000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-58452000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-66049000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-2146000	USD
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	21867000
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19982000
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19647000
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	21867000
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19982000
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19647000
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-2.67
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-3.31
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.11
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-2.67
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-3.31
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.11
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	4611000
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	4632000
CY2020Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	25555000	USD
CY2019Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	15570000	USD
CY2020Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	52544000	USD
CY2019Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	50787000	USD
CY2020Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	32298000	USD
CY2019Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	18671000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	110397000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	85028000	USD
CY2020	us-gaap	Inventory Lifo Reserve Period Charge InventoryLIFOReservePeriodCharge	3900000	USD
CY2019	us-gaap	Inventory Lifo Reserve Period Charge InventoryLIFOReservePeriodCharge	6800000	USD
CY2018	us-gaap	Inventory Lifo Reserve Period Charge InventoryLIFOReservePeriodCharge	7200000	USD
CY2020	us-gaap	Inventory Write Down InventoryWriteDown	20400000	USD
CY2019	us-gaap	Inventory Write Down InventoryWriteDown	13400000	USD
CY2018	us-gaap	Inventory Write Down InventoryWriteDown	12300000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	360975000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	338385000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	142434000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	116979000	USD
CY2020Q4	aaoi	Property Pant And Equipment Net Before Construction In Progress And Land PropertyPantAndEquipmentNetBeforeConstructionInProgressAndLand	218541000	USD
CY2019Q4	aaoi	Property Pant And Equipment Net Before Construction In Progress And Land PropertyPantAndEquipmentNetBeforeConstructionInProgressAndLand	221406000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	252984000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	248444000	USD
CY2020	us-gaap	Depreciation Depreciation	24200000	USD
CY2019	us-gaap	Depreciation Depreciation	23500000	USD
CY2018	us-gaap	Depreciation Depreciation	29200000	USD
CY2020	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	400000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-11444000	USD
CY2020Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	18000	USD
CY2019Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	62000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	52169000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	49923000	USD
CY2020Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	38265000	USD
CY2019	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	200000	USD
CY2018	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	0.0	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	8179000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	4180000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	3999000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	7655000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	3574000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	4081000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	500000	USD
CY2020	us-gaap	Finite Lived Intangible Assets Remaining Amortization Period1 FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1	P7Y
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	579000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	579000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	579000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	579000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	579000	USD
CY2020Q4	aaoi	Finitelived Intangible Asset Expected Amortization Year Five And Thereafter FinitelivedIntangibleAssetExpectedAmortizationYearFiveAndThereafter	1104000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	3999000	USD
CY2020Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	52187000	USD
CY2019Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	49985000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	33371000	USD
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	13904000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	16552000	USD
CY2020Q4	aaoi	Bank Acceptances Executed And Outstanding Current BankAcceptancesExecutedAndOutstandingCurrent	15860000	USD
CY2019Q4	aaoi	Bank Acceptances Executed And Outstanding Current BankAcceptancesExecutedAndOutstandingCurrent	6310000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Rolling Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextRollingTwelveMonths	38265000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Rolling Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInRollingYearTwo	13904000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	52169000	USD
CY2020Q4	us-gaap	Debt Instrument Unused Borrowing Capacity Amount DebtInstrumentUnusedBorrowingCapacityAmount	28700000	USD
CY2019Q4	us-gaap	Debt Instrument Unused Borrowing Capacity Amount DebtInstrumentUnusedBorrowingCapacityAmount	48800000	USD
CY2020Q4	aaoi	Libor Rate LiborRate	0.0014	pure
CY2019Q4	aaoi	Libor Rate LiborRate	0.0176	pure
CY2020Q4	us-gaap	Cash Collateral For Borrowed Securities CashCollateralForBorrowedSecurities	5400000	USD
CY2019Q4	us-gaap	Cash Collateral For Borrowed Securities CashCollateralForBorrowedSecurities	6100000	USD
CY2020Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	10517000	USD
CY2019Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	11009000	USD
CY2020Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	3057000	USD
CY2019Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	2288000	USD
CY2020Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	251000	USD
CY2019Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	1215000	USD
CY2020Q4	aaoi	Accrued Interest Current AccruedInterestCurrent	1256000	USD
CY2019Q4	aaoi	Accrued Interest Current AccruedInterestCurrent	1208000	USD
CY2020Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	303000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	312000	USD
CY2020Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	703000	USD
CY2019Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	821000	USD
CY2020Q4	us-gaap	Accrued Liabilities For Commissions Expense And Taxes AccruedLiabilitiesForCommissionsExpenseAndTaxes	974000	USD
CY2019Q4	us-gaap	Accrued Liabilities For Commissions Expense And Taxes AccruedLiabilitiesForCommissionsExpenseAndTaxes	420000	USD
CY2020Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	377000	USD
CY2019Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	222000	USD
CY2020Q4	aaoi	Accrued Shipping And Tariff Expenses AccruedShippingAndTariffExpenses	526000	USD
CY2019Q4	aaoi	Accrued Shipping And Tariff Expenses AccruedShippingAndTariffExpenses	344000	USD
CY2020Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	547000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	25000	USD
CY2020Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	18511000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	17864000	USD
CY2020	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	1000	USD
CY2019	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	20000	USD
CY2018	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	663000	USD
CY2020	aaoi	Government Subsidy Income GovernmentSubsidyIncome	2708000	USD
CY2019	aaoi	Government Subsidy Income GovernmentSubsidyIncome	1614000	USD
CY2018	aaoi	Government Subsidy Income GovernmentSubsidyIncome	934000	USD
CY2020	us-gaap	Other Nonoperating Gains Losses OtherNonoperatingGainsLosses	304000	USD
CY2019	us-gaap	Other Nonoperating Gains Losses OtherNonoperatingGainsLosses	219000	USD
CY2018	us-gaap	Other Nonoperating Gains Losses OtherNonoperatingGainsLosses	224000	USD
CY2020	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-15000	USD
CY2019	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-13000	USD
CY2018	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-7000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2998000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1840000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1814000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-20288000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-35279000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-30936000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-16108000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	1666000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-51224000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-51387000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-9778000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	41000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	16000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	80000	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	0	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	97000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1349000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	43000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	113000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1429000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-172000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	16375000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-6391000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1716000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	61000	USD
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	7357000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-3542000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-2731000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	7185000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	14549000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-9061000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7228000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	14662000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-7632000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	31526000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	21516000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	2241000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	2385000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	172000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	59000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	96000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	618000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	528000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	4599000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	4599000	USD
CY2020Q4	us-gaap	Deferred Tax Assets In Process Research And Development DeferredTaxAssetsInProcessResearchAndDevelopment	9008000	USD
CY2019Q4	us-gaap	Deferred Tax Assets In Process Research And Development DeferredTaxAssetsInProcessResearchAndDevelopment	8264000	USD
CY2020Q4	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	1784000	USD
CY2019Q4	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	888000	USD
CY2020Q4	aaoi	Deferred Tax Assets Asc842 Assets DeferredTaxAssetsASC842Assets	1671000	USD
CY2019Q4	aaoi	Deferred Tax Assets Asc842 Assets DeferredTaxAssetsASC842Assets	1641000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	784000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	520000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	52290000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	40609000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	43462000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	25736000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	8828000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	14873000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	7402000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	6180000	USD
CY2020Q4	aaoi	Deferred Tax Liabilities Asc842 Liabilities DeferredTaxLiabilitiesASC842Liabilities	1426000	USD
CY2019Q4	aaoi	Deferred Tax Liabilities Asc842 Liabilities DeferredTaxLiabilitiesASC842Liabilities	1406000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	8828000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	7586000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	7287000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	43500000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	25700000	USD
CY2020	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	17700000	USD
CY2019	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	25700000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	25736000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2020	aaoi	Valuation Allowance Deferred Tax Asset Change Charged To Expense Income ValuationAllowanceDeferredTaxAssetChangeChargedToExpenseIncome	17137000	USD
CY2019	aaoi	Valuation Allowance Deferred Tax Asset Change Charged To Expense Income ValuationAllowanceDeferredTaxAssetChangeChargedToExpenseIncome	25736000	USD
CY2018	aaoi	Valuation Allowance Deferred Tax Asset Change Charged To Expense Income ValuationAllowanceDeferredTaxAssetChangeChargedToExpenseIncome	0	USD
CY2020	aaoi	Valuation Allowance Change Charged To Currency Translation Adjustment ValuationAllowanceChangeChargedToCurrencyTranslationAdjustment	589000	USD
CY2019	aaoi	Valuation Allowance Change Charged To Currency Translation Adjustment ValuationAllowanceChangeChargedToCurrencyTranslationAdjustment	0	USD
CY2018	aaoi	Valuation Allowance Change Charged To Currency Translation Adjustment ValuationAllowanceChangeChargedToCurrencyTranslationAdjustment	0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	43462000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	25736000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21	pure
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21	pure
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21	pure
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-10775000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-10791000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-2053000	USD
CY2020	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	-1132000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	-962000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	-1020000	USD
CY2020	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	1153000	USD
CY2019	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	590000	USD
CY2018	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-1043000	USD
CY2020	aaoi	Effective Income Tax Rate Reconciliation Permanent Differences Foreign Amount EffectiveIncomeTaxRateReconciliationPermanentDifferencesForeignAmount	-1002000	USD
CY2019	aaoi	Effective Income Tax Rate Reconciliation Permanent Differences Foreign Amount EffectiveIncomeTaxRateReconciliationPermanentDifferencesForeignAmount	-671000	USD
CY2018	aaoi	Effective Income Tax Rate Reconciliation Permanent Differences Foreign Amount EffectiveIncomeTaxRateReconciliationPermanentDifferencesForeignAmount	-1067000	USD
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	17137000	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	25736000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	0	USD
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	426000	USD
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	607000	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-1325000	USD
CY2020	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-103000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Transition Tax On Accumulated Foreign Earnings Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017TransitionTaxOnAccumulatedForeignEarningsAmount	0	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Transition Tax On Accumulated Foreign Earnings Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017TransitionTaxOnAccumulatedForeignEarningsAmount	-1777000	USD
CY2020	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	744000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	1616000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	2022000	USD
CY2020	aaoi	Effective Income Tax Rate Reconciliation Alternative Minimum Tax Amount EffectiveIncomeTaxRateReconciliationAlternativeMinimumTaxAmount	-172000	USD
CY2019	aaoi	Effective Income Tax Rate Reconciliation Alternative Minimum Tax Amount EffectiveIncomeTaxRateReconciliationAlternativeMinimumTaxAmount	0	USD
CY2018	aaoi	Effective Income Tax Rate Reconciliation Alternative Minimum Tax Amount EffectiveIncomeTaxRateReconciliationAlternativeMinimumTaxAmount	0	USD
CY2020	us-gaap	Income Tax Reconciliation Tax Settlements Foreign IncomeTaxReconciliationTaxSettlementsForeign	12000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Settlements Foreign IncomeTaxReconciliationTaxSettlementsForeign	27000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Settlements Foreign IncomeTaxReconciliationTaxSettlementsForeign	514000	USD
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	61000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-182000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	224000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7228000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	54000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	281000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	14662000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-7632000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	200000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	200000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	200000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	181000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	181000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	181000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	-0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	-0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	-0	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	181000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	181000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	181000	USD
CY2020	us-gaap	Tax Cuts And Jobs Act Of2017 Measurement Period Adjustment Income Tax Expense Benefit TaxCutsAndJobsActOf2017MeasurementPeriodAdjustmentIncomeTaxExpenseBenefit	5000000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	281000
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	5.32
CY2019Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	5.32
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P3Y7M13D
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	573000	USD
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	5000
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	6.00
CY2020Q4	aaoi	Sharebased Compensation Arrangement By Sharebased Payment Award Options Weighted Average Share Price On Date Of Exercise SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsWeightedAverageSharePriceOnDateOfExercise	10.77
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	24000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	-0
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	0
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue	0
CY2020	aaoi	Sharebased Compensation Arrangement By Sharebased Payment Award Options Forfeitures Intrinsic Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsForfeituresIntrinsicValue	0	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	276000
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	10.29
CY2020Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	5.41
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P2Y8M1D
CY2020Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	65222000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	76608000	USD
CY2020Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	52326000	USD
CY2020Q1	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	34129000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	10.21
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P2Y8M1D
CY2020Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	54000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber	276000
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice	10.29
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1	P2Y8M1D
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	54000	USD
CY2020Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions	0	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	13046000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	11804000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	11120000	USD
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	45000000
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000
CY2019Q4	aaoi	Stock Offering Maximum Value New Issues StockOfferingMaximumValueNewIssues	250000000	USD
CY2020	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	pure
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	234623000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	190872000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	267465000	USD
CY2020Q4	us-gaap	Noncurrent Assets NoncurrentAssets	270654000	USD
CY2019Q4	us-gaap	Noncurrent Assets NoncurrentAssets	266010000	USD
CY2018Q4	us-gaap	Noncurrent Assets NoncurrentAssets	244002000	USD
CY2020Q1	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	2936000	USD
CY2020Q2	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	3430000	USD
CY2020Q3	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	4491000	USD
CY2020Q4	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	3230000	USD
CY2020	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	800000	USD
CY2020	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	1400000	USD
CY2019	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	1300000	USD
CY2018	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	1100000	USD
CY2020Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	1356000	USD
CY2020Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	1350000	USD
CY2020Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	1308000	USD
CY2020Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	1247000	USD
CY2020Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	1273000	USD
CY2020Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	4190000	USD
CY2020Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	10724000	USD
CY2020	us-gaap	Loss Contingency Damages Sought Value LossContingencyDamagesSoughtValue	15500000	USD
CY2020Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	40467000	USD
CY2020Q4	us-gaap	Gross Profit GrossProfit	11277000	USD
CY2020Q1	aaoi	Gross Margin GrossMargin	0.157	pure
CY2020Q2	aaoi	Gross Margin GrossMargin	0.211	pure
CY2020Q3	aaoi	Gross Margin GrossMargin	0.250	pure
CY2020Q4	aaoi	Gross Margin GrossMargin	0.216	pure
CY2020Q1	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	10558000	USD
CY2020Q2	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	10803000	USD
CY2020Q3	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	11206000	USD
CY2020Q4	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	10826000	USD
CY2020Q2	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	51486000	USD
CY2020Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	57418000	USD
CY2020Q4	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	41049000	USD
CY2020Q1	us-gaap	Gross Profit GrossProfit	6338000	USD
CY2020Q2	us-gaap	Gross Profit GrossProfit	13736000	USD
CY2020Q3	us-gaap	Gross Profit GrossProfit	19190000	USD
CY2020Q1	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	10638000	USD
CY2020Q2	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	10611000	USD
CY2020Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	10272000	USD
CY2020Q4	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	10382000	USD
CY2020Q1	us-gaap	Operating Expenses OperatingExpenses	24132000	USD
CY2020Q2	us-gaap	Operating Expenses OperatingExpenses	24844000	USD
CY2020Q3	us-gaap	Operating Expenses OperatingExpenses	25969000	USD
CY2020Q4	us-gaap	Operating Expenses OperatingExpenses	24438000	USD
CY2020Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-17794000	USD
CY2020Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-11108000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-6779000	USD
CY2020Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-13161000	USD
CY2020Q1	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-1052000	USD
CY2020Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-468000	USD
CY2020Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-588000	USD
CY2020Q4	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-274000	USD
CY2020Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-18846000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-11576000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-7367000	USD
CY2020Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-13435000	USD
CY2020Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2049000	USD
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7024000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2249000	USD
CY2020Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	-16797000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-18600000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-9616000	USD
CY2020Q4	us-gaap	Net Income Loss NetIncomeLoss	-13439000	USD
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.83
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.89
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.42
CY2020Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.57
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.83
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.89
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.42
CY2020Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.57
CY2019Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	52719000	USD
CY2019Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	43411000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	46084000	USD
CY2019Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	48658000	USD
CY2019Q1	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	40368000	USD
CY2019Q2	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	32873000	USD
CY2019Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	34108000	USD
CY2019Q4	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	37322000	USD
CY2019Q1	us-gaap	Gross Profit GrossProfit	12351000	USD
CY2019Q2	us-gaap	Gross Profit GrossProfit	10538000	USD
CY2019Q3	us-gaap	Gross Profit GrossProfit	11976000	USD
CY2019Q4	us-gaap	Gross Profit GrossProfit	11336000	USD
CY2019Q1	aaoi	Gross Margin GrossMargin	0.234	pure
CY2019Q2	aaoi	Gross Margin GrossMargin	0.243	pure
CY2019Q3	aaoi	Gross Margin GrossMargin	0.260	pure
CY2019Q4	aaoi	Gross Margin GrossMargin	0.233	pure
CY2019Q1	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	11185000	USD
CY2019Q2	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	11151000	USD
CY2019Q3	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	10466000	USD
CY2019Q4	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	10597000	USD
CY2019Q1	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	2595000	USD
CY2019Q2	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	2331000	USD
CY2019Q3	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	2518000	USD
CY2019Q4	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	2615000	USD
CY2019Q1	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	10440000	USD
CY2019Q2	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	10884000	USD
CY2019Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	9988000	USD
CY2019Q4	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	10178000	USD
CY2019Q1	us-gaap	Operating Expenses OperatingExpenses	24220000	USD
CY2019Q2	us-gaap	Operating Expenses OperatingExpenses	24366000	USD
CY2019Q3	us-gaap	Operating Expenses OperatingExpenses	22972000	USD
CY2019Q4	us-gaap	Operating Expenses OperatingExpenses	23390000	USD
CY2019Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-11869000	USD
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-13828000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-10996000	USD
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-12054000	USD
CY2019Q1	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-1079000	USD
CY2019Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-729000	USD
CY2019Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	276000	USD
CY2019Q4	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-1109000	USD
CY2019Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-12948000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-14557000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-10720000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-13163000	USD
CY2019Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2474000	USD
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-3191000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1940000	USD
CY2019Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22267000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	-10474000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	-11366000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	-8780000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	-35430000	USD
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.53
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.57
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.44
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.76
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.53
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.57
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.44
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.76

Files In Submission

Name	View Source	Status
0001437749-21-004108-index-headers.html	Edgar Link	pending
0001437749-21-004108-index.html	Edgar Link	pending
0001437749-21-004108.txt	Edgar Link	pending
0001437749-21-004108-xbrl.zip	Edgar Link	pending
aaoi-20201231.xsd	Edgar Link	pending
aaoi-20201231_cal.xml	Edgar Link	unprocessable
aaoi-20201231_def.xml	Edgar Link	unprocessable
aaoi-20201231_lab.xml	Edgar Link	unprocessable
aaoi-20201231_pre.xml	Edgar Link	unprocessable
aaoi20201231_10k.htm	Edgar Link	pending
aaoi20201231_10k_htm.xml	Edgar Link	completed
ex_219993.htm	Edgar Link	pending
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report.css	Edgar Link	pending
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$AAOI
APPLIED OPTOELECTRONICS, INC. Stock $aaoi

2020 Q4 Form 10-K Financial Statement

#000143774921004108 Filed on February 25, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AAOI APPLIED OPTOELECTRONICS, INC. Stock $aaoi

2020 Q4 Form 10-K Financial Statement

#000143774921004108 Filed on February 25, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AAOI
APPLIED OPTOELECTRONICS, INC. Stock $aaoi