$AAOI
APPLIED OPTOELECTRONICS, INC. Stock $aaoi

$aaoi Overview Financials Valuation SEC Filings Company Website

2018 Q4 Form 10-K Financial Statement

#000143774920003909 Filed on February 28, 2020

Income Statement

Concept	2018 Q4	2018 Q3	2018 Q2
Revenue	$58.02M	$56.39M	$87.82M
YoY Change	-27.39%	-36.57%	-25.19%
Cost Of Revenue	$47.48M	$38.85M	$53.96M
YoY Change	-0.46%	-21.52%	-15.82%
Gross Profit	$10.54M	$17.54M	$33.86M
YoY Change	-67.28%	-55.49%	-36.47%
Gross Profit Margin	18.16%	31.1%	38.56%
Selling, General & Admin	$11.47M	$12.96M	$12.28M
YoY Change	3.35%	8.01%	13.66%
% of Gross Profit	108.87%	73.91%	36.25%
Research & Development	$11.34M	$14.18M	$12.65M
YoY Change	6.0%	54.13%	56.11%
% of Gross Profit	107.64%	80.86%	37.34%
Depreciation & Amortization	$7.890M	$7.400M	$7.200M
YoY Change	30.41%	37.04%	55.51%
% of Gross Profit	74.88%	42.2%	21.26%
Operating Expenses	$22.81M	$27.14M	$24.92M
YoY Change	4.65%	27.42%	31.16%
Operating Profit	-$12.28M	-$9.604M	$8.943M
YoY Change	-218.05%	-153.06%	-73.93%
Interest Expense	-$600.0K	$274.0K	$279.0K
YoY Change	-33.33%	-145.67%	-193.0%
% of Operating Profit			3.12%
Other Income/Expense, Net	$71.00K	$578.0K	$1.387M
YoY Change		478.0%	593.5%
Pretax Income	-$12.21M	-$9.026M	$10.33M
YoY Change	-229.85%	-151.58%	-69.8%
Income Tax	-$3.638M	-$5.294M	$2.296M
% Of Pretax Income			22.23%
Net Earnings	-$8.568M	-$3.732M	$8.034M
YoY Change	-250.32%	-119.24%	-72.39%
Net Earnings / Revenue	-14.77%	-6.62%	9.15%
Basic Earnings Per Share	-$0.43	-$0.19	$0.41
Diluted Earnings Per Share	-$0.43	-$0.19	$0.40
COMMON SHARES
Basic Shares Outstanding		19.71M	19.59M
Diluted Shares Outstanding		19.71M	20.08M

Balance Sheet

Concept	2018 Q4	2018 Q3	2018 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$55.60M	$62.40M	$76.20M
YoY Change	-33.01%	-12.11%	1.74%
Cash & Equivalents	$55.65M	$58.08M	$77.94M
Short-Term Investments	$0.00	$6.000M	$0.00
Other Short-Term Assets	$13.70M	$12.10M	$11.90M
YoY Change	41.24%	5.22%	16.67%
Inventory	$93.26M	$107.9M	$93.30M
Prepaid Expenses
Receivables	$30.53M	$32.00M	$48.70M
Other Receivables	$1.200M	$800.0K	$600.0K
Total Short-Term Assets	$194.3M	$215.2M	$230.6M
YoY Change	-15.42%	-6.48%	5.54%
LONG-TERM ASSETS
Property, Plant & Equipment	$234.2M	$222.5M	$212.1M
YoY Change	18.35%	22.59%	28.39%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$6.849M	$33.60M	$19.40M
YoY Change	-66.59%	50.67%	4.86%
Total Long-Term Assets	$272.6M	$265.9M	$241.6M
YoY Change	22.06%	27.47%	28.17%
TOTAL ASSETS
Total Short-Term Assets	$194.3M	$215.2M	$230.6M
Total Long-Term Assets	$272.6M	$265.9M	$241.6M
Total Assets	$466.8M	$481.1M	$472.2M
YoY Change	3.06%	9.66%	16.02%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$29.91M	$53.70M	$51.40M
YoY Change	-31.4%	5.29%	-3.56%
Accrued Expenses	$19.29M	$20.40M	$16.70M
YoY Change	-26.09%	-6.85%	-8.74%
Deferred Revenue	$426.0K
YoY Change
Short-Term Debt	$4.600M	$0.00	$0.00
YoY Change
Long-Term Debt Due	$23.59M	$8.300M	$3.200M
YoY Change	3831.5%	130.56%	-30.43%
Total Short-Term Liabilities	$77.42M	$82.70M	$71.70M
YoY Change	9.5%	7.54%	-6.52%
LONG-TERM LIABILITIES
Long-Term Debt	$60.33M	$62.90M	$57.90M
YoY Change	23.12%	68.18%	153.95%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$60.33M	$62.90M	$57.90M
YoY Change	23.12%	68.18%	153.95%
TOTAL LIABILITIES
Total Short-Term Liabilities	$77.42M	$82.70M	$71.70M
Total Long-Term Liabilities	$60.33M	$62.90M	$57.90M
Total Liabilities	$137.7M	$145.6M	$129.6M
YoY Change	15.08%	27.38%	30.25%
SHAREHOLDERS EQUITY
Retained Earnings	$35.99M
YoY Change
Common Stock	$20.00K
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$329.1M	$335.5M	$342.6M
YoY Change
Total Liabilities & Shareholders Equity	$466.8M	$481.1M	$472.2M
YoY Change	3.06%	9.66%	16.02%

Cashflow Statement

Concept	2018 Q4	2018 Q3	2018 Q2
OPERATING ACTIVITIES
Net Income	-$8.568M	-$3.732M	$8.034M
YoY Change	-250.32%	-119.24%	-72.39%
Depreciation, Depletion And Amortization	$7.890M	$7.400M	$7.200M
YoY Change	30.41%	37.04%	55.51%
Cash From Operating Activities	-$11.60M	$7.550M	$22.14M
YoY Change	-143.32%	-0.92%	-44.93%
INVESTING ACTIVITIES
Capital Expenditures	-$19.72M	-$21.49M	-$21.33M
YoY Change	-3.95%	7.45%	10.63%
Acquisitions
YoY Change
Other Investing Activities	$14.23M	-$14.31M	-$1.670M
YoY Change	-2946.0%	-1066.89%	-30.42%
Cash From Investing Activities	-$5.480M	-$35.81M	-$23.00M
YoY Change	-73.94%	93.25%	6.14%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	16.86M	8.640M	-5.280M
YoY Change	164.68%	22.38%	168.02%
NET CHANGE
Cash From Operating Activities	-11.60M	7.550M	22.14M
Cash From Investing Activities	-5.480M	-35.81M	-23.00M
Cash From Financing Activities	16.86M	8.640M	-5.280M
Net Change In Cash	-220.0K	-19.62M	-6.140M
YoY Change	-101.82%	409.61%	-137.08%
FREE CASH FLOW
Cash From Operating Activities	-$11.60M	$7.550M	$22.14M
Capital Expenditures	-$19.72M	-$21.49M	-$21.33M
Free Cash Flow	$8.120M	$29.04M	$43.47M
YoY Change	-82.84%	5.14%	-26.92%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2018Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	11293000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	192804000	USD
CY2018Q4	us-gaap	Assets Current AssetsCurrent	194275000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	248444000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	234211000	USD
CY2019Q4	us-gaap	Indefinite Lived Contractual Rights IndefiniteLivedContractualRights	5598000	USD
CY2018Q4	us-gaap	Indefinite Lived Contractual Rights IndefiniteLivedContractualRights	5814000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	7768000	USD
CY2018Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	0	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	119000	USD
CY2020Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	20231435
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2018Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	0	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	4081000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	3977000	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	500000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	500000	USD
CY2019Q4	us-gaap	Debt Instrument Unused Borrowing Capacity Amount DebtInstrumentUnusedBorrowingCapacityAmount	48800000	USD
CY2019Q4	us-gaap	Income Tax Examination Penalties And Interest Accrued IncomeTaxExaminationPenaltiesAndInterestAccrued	0	USD
CY2017Q4	us-gaap	Income Tax Examination Penalties And Interest Accrued IncomeTaxExaminationPenaltiesAndInterestAccrued	0	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	30000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	32000	USD
CY2019Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000
CY2018Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000
CY2019Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2018Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2019Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
CY2018Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
CY2019Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0
CY2018Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	45000000
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	45000000
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	20140000
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	19810000
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	20140000
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	19810000
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	59977000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	55646000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	7051000	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	2358000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	34655000	USD
CY2018Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	30534000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	85028000	USD
CY2018Q4	us-gaap	Inventory Net InventoryNet	93256000	USD
CY2019Q4	us-gaap	Prepaid Taxes PrepaidTaxes	224000	USD
CY2018Q4	us-gaap	Prepaid Taxes PrepaidTaxes	1188000	USD
CY2019Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	7287000	USD
CY2018Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	21714000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	724000	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	6849000	USD
CY2019Q4	us-gaap	Assets Assets	466825000	USD
CY2018Q4	us-gaap	Assets Assets	466840000	USD
CY2018Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	29910000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	33371000	USD
CY2018Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	23589000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	32828000	USD
CY2019	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	144671000	USD
CY2018	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	179692000	USD
CY2017	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	216049000	USD
CY2019	us-gaap	Gross Profit GrossProfit	46201000	USD
CY2018	us-gaap	Gross Profit GrossProfit	87773000	USD
CY2017	us-gaap	Gross Profit GrossProfit	166280000	USD
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CY2017	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	35365000	USD
CY2019Q4	aaoi	Bank Acceptances Executed And Outstanding Current BankAcceptancesExecutedAndOutstandingCurrent	6310000	USD
CY2018Q4	aaoi	Bank Acceptances Executed And Outstanding Current BankAcceptancesExecutedAndOutstandingCurrent	4628000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	965000	USD
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CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	17000	USD
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CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	91355000	USD
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	77418000	USD
CY2019Q4	us-gaap	Notes Payable To Bank Noncurrent NotesPayableToBankNoncurrent	16552000	USD
CY2018Q4	us-gaap	Notes Payable To Bank Noncurrent NotesPayableToBankNoncurrent	60328000	USD
CY2019Q4	us-gaap	Convertible Long Term Notes Payable ConvertibleLongTermNotesPayable	77041000	USD
CY2018Q4	us-gaap	Convertible Long Term Notes Payable ConvertibleLongTermNotesPayable	0	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	7983000	USD
CY2018Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	0	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	100000	USD
CY2018Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	0	USD
CY2019Q4	us-gaap	Liabilities Liabilities	193031000	USD
CY2018Q4	us-gaap	Liabilities Liabilities	137746000	USD
CY2019Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2018Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	20000	USD
CY2018Q4	us-gaap	Common Stock Value CommonStockValue	20000	USD
CY2019Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	303401000	USD
CY2018Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	292480000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	430000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	602000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-30057000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	35992000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	273794000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	329094000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	466825000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	466840000	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
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CY2019	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	10060000	USD
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CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20139105
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-66049000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-2146000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	73951000	USD
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CY2017	us-gaap	Operating Expenses OperatingExpenses	79329000	USD
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CY2019	us-gaap	Investment Income Interest InvestmentIncomeInterest	925000	USD
CY2018	us-gaap	Investment Income Interest InvestmentIncomeInterest	282000	USD
CY2017	us-gaap	Investment Income Interest InvestmentIncomeInterest	221000	USD
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CY2018	us-gaap	Interest Expense InterestExpense	1106000	USD
CY2017	us-gaap	Interest Expense InterestExpense	858000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1840000	USD
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CY2019	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-2640000	USD
CY2018	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	990000	USD
CY2017	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-2425000	USD
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CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-9778000	USD
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CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	84579000	USD
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CY2017	us-gaap	Net Income Loss NetIncomeLoss	73951000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	10628000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	333276000	USD
CY2018	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	-2073000	USD
CY2018	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	-1942000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	11120000	USD
CY2018	us-gaap	Cumulative Effect On Retained Earnings Tax1 CumulativeEffectOnRetainedEarningsTax1	-9141000	USD
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
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	273794000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-66049000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-2146000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	73951000	USD
CY2019	us-gaap	Inventory Lifo Reserve Period Charge InventoryLIFOReservePeriodCharge	6774000	USD
CY2018	us-gaap	Inventory Lifo Reserve Period Charge InventoryLIFOReservePeriodCharge	7166000	USD
CY2017	us-gaap	Inventory Lifo Reserve Period Charge InventoryLIFOReservePeriodCharge	1866000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	24014000	USD
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	29698000	USD
CY2017	us-gaap	Depreciation And Amortization DepreciationAndAmortization	20381000	USD
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	892000	USD
CY2018	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	42000	USD
CY2017	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	81000	USD
CY2018	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-8964000	USD
CY2019	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	640000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-29316000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	10080000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes	-961000	USD
CY2018	us-gaap	Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes	-230000	USD
CY2017	us-gaap	Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes	1386000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-1560000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	28403000	USD
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	21876000	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
CY2019	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-13000	USD
CY2018	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-7000	USD
CY2017	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-97000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	11804000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	11120000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	7795000	USD
CY2019	us-gaap	Unrealized Gain Loss On Foreign Currency Derivatives Net Before Tax UnrealizedGainLossOnForeignCurrencyDerivativesNetBeforeTax	245000	USD
CY2018	us-gaap	Unrealized Gain Loss On Foreign Currency Derivatives Net Before Tax UnrealizedGainLossOnForeignCurrencyDerivativesNetBeforeTax	548000	USD
CY2017	us-gaap	Unrealized Gain Loss On Foreign Currency Derivatives Net Before Tax UnrealizedGainLossOnForeignCurrencyDerivativesNetBeforeTax	-330000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	4355000	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
CY2017	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	4266000	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
CY2017	aaoi	Increase Decrease In Operating Right Of Use Asset IncreaseDecreaseInOperatingRightOfUseAsset	0	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	3150000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-13714000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	7249000	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
CY2017	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	6204000	USD
CY2019	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-308000	USD
CY2018	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	554000	USD
CY2017	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	4052000	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
CY2017	aaoi	Increase Decrease In Operating And Finance Lease Liability IncreaseDecreaseInOperatingAndFinanceLeaseLiability	0	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
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	84284000	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
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Shortterm Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments	8000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	66968000	USD
CY2019	aaoi	Payments To Acquire Land Use Rights PaymentsToAcquireLandUseRights	-0	USD
CY2018	aaoi	Payments To Acquire Land Use Rights PaymentsToAcquireLandUseRights	5591000	USD
CY2017	aaoi	Payments To Acquire Land Use Rights PaymentsToAcquireLandUseRights	-0	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
CY2017	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	171000	USD
CY2019	us-gaap	Increase Decrease In Deposits Outstanding IncreaseDecreaseInDepositsOutstanding	2688000	USD
CY2018	us-gaap	Increase Decrease In Deposits Outstanding IncreaseDecreaseInDepositsOutstanding	-674000	USD
CY2017	us-gaap	Increase Decrease In Deposits Outstanding IncreaseDecreaseInDepositsOutstanding	2871000	USD
CY2017	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	39003000	USD
CY2019	us-gaap	Proceeds From Bank Debt ProceedsFromBankDebt	13638000	USD
CY2018	us-gaap	Proceeds From Bank Debt ProceedsFromBankDebt	4595000	USD
CY2018	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	476000	USD
CY2017	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	499000	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
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-70159000	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
CY2017	aaoi	Proceeds From Issuance Of Notes Payable And Longterm Debt Net Of Debt Issuance Costs ProceedsFromIssuanceOfNotesPayableAndLongtermDebtNetOfDebtIssuanceCosts	0	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
CY2017	aaoi	Repayments Of Principals On Longterm Debt And Notes Payable RepaymentsOfPrincipalsOnLongtermDebtAndNotesPayable	42758000	USD
CY2019	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	83434000	USD
CY2018	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	155078000	USD
CY2017	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	88003000	USD
CY2019	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	88299000	USD
CY2018	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	165569000	USD
CY2017	us-gaap	Proceeds From Bank Debt ProceedsFromBankDebt	0	USD
CY2019	us-gaap	Repayments Of Bank Debt RepaymentsOfBankDebt	11952000	USD
CY2018	us-gaap	Repayments Of Bank Debt RepaymentsOfBankDebt	-0	USD
CY2017	us-gaap	Repayments Of Bank Debt RepaymentsOfBankDebt	309000	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
CY2017	aaoi	Proceeds From Issuance Of Convertible Senior Notes Net Of Debt Issuance Costs ProceedsFromIssuanceOfConvertibleSeniorNotesNetOfDebtIssuanceCosts	0	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	2000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	14000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	120000	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1460000	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
CY2017	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	10721000	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
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	21572000	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
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	18244000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	298000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1738000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-385000	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
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	31984000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	58004000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	83948000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	51964000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	67028000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	58004000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	83948000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	3172000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	848000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	1325000	USD
CY2019	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	8000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	2000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	64000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	124000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	872000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-890000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	8470000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	5835000	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
CY2017	aaoi	Increase Decrease In Accounts Payable Related To Property And Equipment Additions IncreaseDecreaseInAccountsPayableRelatedToPropertyAndEquipmentAdditions	4582000	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
CY2017	aaoi	Increase Decrease In Deposits And Prepaid For Equipment Related To Property And Equipment Additions IncreaseDecreaseInDepositsAndPrepaidForEquipmentRelatedToPropertyAndEquipmentAdditions	0	USD
CY2019	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-weight: inherit; font-style: normal;">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>
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	10712000	USD
CY2019Q4	us-gaap	Cash Uninsured Amount CashUninsuredAmount	51300000	USD
CY2019	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-weight: inherit; font-style: normal;">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-weight: inherit; font-style: normal;">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-weight: inherit; font-style: normal;">2019</em>, <em style="font-weight: inherit; font-style: normal;">2018</em> and <em style="font-weight: inherit; font-style: normal;">2017</em>, its top <span style="-sec-ix-hidden:c56484766"><span style="-sec-ix-hidden:c56484767"><span style="-sec-ix-hidden:c56484769">five</span></span></span> customers represented 80.7%, 85.7%, and 86.1% of its revenue, respectively. In <em style="font-weight: inherit; font-style: normal;">2019</em>, Microsoft, Amazon, Facebook and Cisco represented 32.2%, 24.0%, 10.9% and 10.0% of its revenue, respectively. In <em style="font-weight: inherit; font-style: normal;">2018</em>, Facebook, Microsoft, Amazon and Cisco represented 38.3%, 22.1%, 12.1% and 9.9% of its revenue, respectively. In <em style="font-weight: inherit; font-style: normal;">2017</em>, Amazon, Facebook, Microsoft and Cisco represented 35.4%, 28.6%, 13.8% and 4.8% of its revenue, respectivel<span style="background-color:null;">y. The <span style="-sec-ix-hidden:c56484796"><span style="-sec-ix-hidden:c56484795">five</span></span> largest receivable balances for customers represented an aggregate of 82.0% and 70.2% of total accounts receivable at </span><em style="font-weight: inherit; font-style: normal;"> December 31, 2019</em><span style="background-color:null;"> and </span><em style="font-weight: inherit; font-style: normal;">2018</em><span style="background-color:null;">, respectively. As of <em style="font-weight: inherit; font-style: normal;"> December 31, </em></span><em style="font-weight: inherit; font-style: normal;">2019</em><span style="background-color:null;">, Microsoft and Amazon represented <em style="font-weight: inherit; font-style: normal;">32.0%</em> and 33.0% of total accounts receivable, respectively. As of <em style="font-weight: inherit; font-style: normal;"> December 31, </em></span><em style="font-weight: inherit; font-style: normal;">2018</em><span style="background-color:null;">, Microsoft, Amazon and Facebook represented 23.2%, 18.7%, and 12.6% of total accounts receivable, respectively. <em style="font-weight: inherit; font-style: normal;">No</em> other customer represented greater than <em style="font-weight: inherit; font-style: normal;">ten</em> percent of revenue in </span><em style="font-weight: inherit; font-style: normal;">2019</em><span style="background-color:null;">, </span><em style="font-weight: inherit; font-style: normal;">2018</em><span style="background-color:null;"> or </span><em style="font-weight: inherit; font-style: normal;">2017</em><span style="background-color:null;"> had greater than <em style="font-weight: inherit; font-style: normal;">ten</em> percent of total accounts receivable at <em style="font-weight: inherit; font-style: normal;"> December 31, </em></span><em style="font-weight: inherit; font-style: normal;">2019</em><span style="background-color:null;"> or </span><em style="font-weight: inherit; font-style: normal;">2018</em><span style="background-color:null;">.</span></p>
CY2019Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	131000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	1764000	USD
CY2019Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	14000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	8948000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	117000	USD
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P9Y2M23D
CY2019Q4	aaoi	Number Of Patents Issued NumberOfPatentsIssued	291	pure
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	59977000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	55646000	USD
CY2019Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	800000	USD
CY2018Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	1000000.0	USD
CY2019	us-gaap	Advertising Expense AdvertisingExpense	500000	USD
CY2018	us-gaap	Advertising Expense AdvertisingExpense	500000	USD
CY2017	us-gaap	Advertising Expense AdvertisingExpense	300000	USD
CY2019Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P3Y9M29D
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0313	pure
CY2019Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0500	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
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	382329000	USD
CY2017	aaoi	Percentage Of Revenue PercentageOfRevenue	1.000	pure
CY2019	us-gaap	Operating Lease Expense OperatingLeaseExpense	1229000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	5000	USD
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	111000	USD
CY2019	us-gaap	Lease Cost LeaseCost	1345000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	1234000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	22000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	1159000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	22000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	1098000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	22000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	1091000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	65000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	1090000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	0	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	5040000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	0	USD
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	4632000
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	7051000	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	2358000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	67028000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	58004000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-66049000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-2146000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	73951000	USD
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19982000
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19647000
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19097000
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
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1042000
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19982000
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19647000
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20139000
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-3.31
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.11
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.87
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-3.31
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.11
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.67
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	380000
CY2019Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	15570000	USD
CY2018Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	30214000	USD
CY2019Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	50787000	USD
CY2018Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	49192000	USD
CY2019Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	18671000	USD
CY2018Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	13850000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	85028000	USD
CY2018Q4	us-gaap	Inventory Net InventoryNet	93256000	USD
CY2019	us-gaap	Inventory Lifo Reserve Period Charge InventoryLIFOReservePeriodCharge	6800000	USD
CY2018	us-gaap	Inventory Lifo Reserve Period Charge InventoryLIFOReservePeriodCharge	7200000	USD
CY2017	us-gaap	Inventory Lifo Reserve Period Charge InventoryLIFOReservePeriodCharge	1900000	USD
CY2019	us-gaap	Inventory Write Down InventoryWriteDown	13400000	USD
CY2018	us-gaap	Inventory Write Down InventoryWriteDown	12300000	USD
CY2017	us-gaap	Inventory Write Down InventoryWriteDown	6800000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	338385000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	311894000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	116979000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	95233000	USD
CY2019Q4	aaoi	Property Pant And Equipment Net Before Construction In Progress And Land PropertyPantAndEquipmentNetBeforeConstructionInProgressAndLand	221406000	USD
CY2018Q4	aaoi	Property Pant And Equipment Net Before Construction In Progress And Land PropertyPantAndEquipmentNetBeforeConstructionInProgressAndLand	216661000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	248444000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	234211000	USD
CY2019	us-gaap	Depreciation Depreciation	23500000	USD
CY2018	us-gaap	Depreciation Depreciation	29200000	USD
CY2017	us-gaap	Depreciation Depreciation	19900000	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
CY2018Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	6998000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	-3021000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	3977000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	500000	USD
CY2019	us-gaap	Finite Lived Intangible Assets Remaining Amortization Period1 FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1	P7Y
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	537000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	537000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	537000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	537000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	537000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	1396000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	4081000	USD
CY2019Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	49985000	USD
CY2018Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	84124000	USD
CY2019Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	62000	USD
CY2018Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	207000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	49923000	USD
CY2018Q4	us-gaap	Long Term Debt LongTermDebt	83917000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	33371000	USD
CY2018Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	23589000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	16552000	USD
CY2018Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	60328000	USD
CY2019Q4	aaoi	Bank Acceptances Executed And Outstanding Current BankAcceptancesExecutedAndOutstandingCurrent	6310000	USD
CY2018Q4	aaoi	Bank Acceptances Executed And Outstanding Current BankAcceptancesExecutedAndOutstandingCurrent	4628000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	33371000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	17497000	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
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	67029000	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
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	84526000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	10838000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	5714000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	49923000	USD
CY2018Q4	us-gaap	Debt Instrument Unused Borrowing Capacity Amount DebtInstrumentUnusedBorrowingCapacityAmount	69400000	USD
CY2019Q4	aaoi	Libor Rate LiborRate	0.0176	pure
CY2018Q4	aaoi	Libor Rate LiborRate	0.0250	pure
CY2018Q4	us-gaap	Cash Collateral For Borrowed Securities CashCollateralForBorrowedSecurities	2400000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	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
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-292000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	97000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1349000	USD
CY2019Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	11009000	USD
CY2018Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	10772000	USD
CY2019Q4	us-gaap	Accrued Rent Current AccruedRentCurrent	0	USD
CY2018Q4	us-gaap	Accrued Rent Current AccruedRentCurrent	1200000	USD
CY2019Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	2288000	USD
CY2018Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	2862000	USD
CY2019Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	1215000	USD
CY2018Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	1088000	USD
CY2019Q4	aaoi	Accrued Interest Current AccruedInterestCurrent	1208000	USD
CY2018Q4	aaoi	Accrued Interest Current AccruedInterestCurrent	163000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	312000	USD
CY2018Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	426000	USD
CY2019Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	821000	USD
CY2018Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	995000	USD
CY2019Q4	us-gaap	Accrued Liabilities For Commissions Expense And Taxes AccruedLiabilitiesForCommissionsExpenseAndTaxes	420000	USD
CY2018Q4	us-gaap	Accrued Liabilities For Commissions Expense And Taxes AccruedLiabilitiesForCommissionsExpenseAndTaxes	398000	USD
CY2019Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	222000	USD
CY2018Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	315000	USD
CY2019Q4	aaoi	Accrued Capital Expenditures Current AccruedCapitalExpendituresCurrent	0	USD
CY2018Q4	aaoi	Accrued Capital Expenditures Current AccruedCapitalExpendituresCurrent	371000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	369000	USD
CY2018Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	701000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	17864000	USD
CY2018Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	19291000	USD
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	10965000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	113000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1429000	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
CY2017	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-2012000	USD
CY2019	aaoi	Government Subsidy Income GovernmentSubsidyIncome	1614000	USD
CY2018	aaoi	Government Subsidy Income GovernmentSubsidyIncome	934000	USD
CY2017	aaoi	Government Subsidy Income GovernmentSubsidyIncome	211000	USD
CY2019	us-gaap	Other Nonoperating Gains Losses OtherNonoperatingGainsLosses	219000	USD
CY2018	us-gaap	Other Nonoperating Gains Losses OtherNonoperatingGainsLosses	224000	USD
CY2017	us-gaap	Other Nonoperating Gains Losses OtherNonoperatingGainsLosses	110000	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
CY2017	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-97000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1840000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1814000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-1788000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-35279000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-11444000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-98000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	14662000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-7632000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10575000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	10673000	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
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	2015000	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
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-1669000	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
CY2017	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-444000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	14549000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-9061000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	21516000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	12049000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	2385000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	1490000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	172000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	172000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	96000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	69000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	528000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	510000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	4599000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	4599000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	14873000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	26463000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	6180000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	4749000	USD
CY2019Q4	aaoi	Deferred Tax Liabilities Asc842 Liabilities DeferredTaxLiabilitiesASC842Liabilities	1406000	USD
CY2018Q4	aaoi	Deferred Tax Liabilities Asc842 Liabilities DeferredTaxLiabilitiesASC842Liabilities	-0	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	7586000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	4749000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	7287000	USD
CY2019Q4	us-gaap	Deferred Tax Assets In Process Research And Development DeferredTaxAssetsInProcessResearchAndDevelopment	8264000	USD
CY2018Q4	us-gaap	Deferred Tax Assets In Process Research And Development DeferredTaxAssetsInProcessResearchAndDevelopment	6648000	USD
CY2019Q4	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	888000	USD
CY2018Q4	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	208000	USD
CY2019Q4	aaoi	Deferred Tax Assets Asc842 Assets DeferredTaxAssetsASC842Assets	1641000	USD
CY2018Q4	aaoi	Deferred Tax Assets Asc842 Assets DeferredTaxAssetsASC842Assets	0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	520000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	718000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	40609000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	26463000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	25736000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	-0	USD
CY2018Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	21714000	USD
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	0.35	pure
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
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	29584000	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
CY2017	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	-1212000	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
CY2017	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-11656000	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
CY2017	aaoi	Effective Income Tax Rate Reconciliation Permanent Differences Foreign Amount EffectiveIncomeTaxRateReconciliationPermanentDifferencesForeignAmount	416000	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
CY2017	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-1700000	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
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-10348000	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
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	2768000	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
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Transition Tax On Accumulated Foreign Earnings Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017TransitionTaxOnAccumulatedForeignEarningsAmount	5067000	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
CY2017	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	2821000	USD
CY2019	aaoi	Effective Income Tax Rate Reconciliation Uncertain Tax Positions EffectiveIncomeTaxRateReconciliationUncertainTaxPositions	0	USD
CY2018	aaoi	Effective Income Tax Rate Reconciliation Uncertain Tax Positions EffectiveIncomeTaxRateReconciliationUncertainTaxPositions	0	USD
CY2017	aaoi	Effective Income Tax Rate Reconciliation Uncertain Tax Positions EffectiveIncomeTaxRateReconciliationUncertainTaxPositions	-1616000	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
CY2017	us-gaap	Income Tax Reconciliation Tax Settlements Foreign IncomeTaxReconciliationTaxSettlementsForeign	0	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-182000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	224000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-331000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	14662000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-7632000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10575000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	200000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	200000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	181000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	181000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	181000	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
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	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
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	-0	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
CY2018Q4	us-gaap	Income Tax Examination Penalties And Interest Accrued IncomeTaxExaminationPenaltiesAndInterestAccrued	0	USD
CY2019	us-gaap	Tax Cuts And Jobs Act Of2017 Measurement Period Adjustment Increase Decrease In Effective Tax Rate TaxCutsAndJobsActOf2017MeasurementPeriodAdjustmentIncreaseDecreaseInEffectiveTaxRate	0.279	pure
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	287000
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	10.19
CY2018Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	5.31
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	1503000	USD
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	4000
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	7.79
CY2019Q4	aaoi	Sharebased Compensation Arrangement By Sharebased Payment Award Options Weighted Average Share Price On Date Of Exercise SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsWeightedAverageSharePriceOnDateOfExercise	12.91
CY2019	aaoi	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercised Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisedWeightedAverageGrantDateFairValue	3.95
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	15000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	2000
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	12.20
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue	6.08
CY2019	aaoi	Sharebased Compensation Arrangement By Sharebased Payment Award Options Forfeitures Intrinsic Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsForfeituresIntrinsicValue	2000	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	10.21
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	P3Y10M13D
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	573000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	281000
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	10.21
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P3Y10M13D
CY2019Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	573000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber	281000
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice	10.21
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1	P3Y10M13D
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	573000	USD
CY2019Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions	0	USD
CY2017Q4	us-gaap	Noncurrent Assets NoncurrentAssets	202754000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	11804000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	11120000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	7795000	USD
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	45000000
CY2019Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000
CY2019	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	pure
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
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	382329000	USD
CY2019Q4	us-gaap	Noncurrent Assets NoncurrentAssets	266010000	USD
CY2018Q4	us-gaap	Noncurrent Assets NoncurrentAssets	244002000	USD
CY2019	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	800000	USD
CY2018	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	800000	USD
CY2017	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	600000	USD
CY2019	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	1300000	USD
CY2018	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	1100000	USD
CY2017	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	1100000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	1256000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	1181000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	1120000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	1156000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	1090000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	5040000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	10843000	USD
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
CY2018Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	65239000	USD
CY2018Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	87822000	USD
CY2018Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	56386000	USD
CY2018Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	58018000	USD
CY2018Q1	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	39403000	USD
CY2018Q2	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	53959000	USD
CY2018Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	38849000	USD
CY2018Q4	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	47481000	USD
CY2018Q1	us-gaap	Gross Profit GrossProfit	25836000	USD
CY2018Q2	us-gaap	Gross Profit GrossProfit	33863000	USD
CY2018Q3	us-gaap	Gross Profit GrossProfit	17537000	USD
CY2018Q4	us-gaap	Gross Profit GrossProfit	10537000	USD
CY2018Q1	aaoi	Gross Margin GrossMargin	0.396	pure
CY2018Q2	aaoi	Gross Margin GrossMargin	0.386	pure
CY2018Q3	aaoi	Gross Margin GrossMargin	0.311	pure
CY2018Q4	aaoi	Gross Margin GrossMargin	0.182	pure
CY2018Q1	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	11736000	USD
CY2018Q2	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	12645000	USD
CY2018Q3	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	14180000	USD
CY2018Q4	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	11342000	USD
CY2018Q1	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	2474000	USD
CY2018Q2	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	2377000	USD
CY2018Q3	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	2370000	USD
CY2018Q4	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	1920000	USD
CY2018Q1	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	9456000	USD
CY2018Q2	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	9898000	USD
CY2018Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	10591000	USD
CY2018Q4	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	9552000	USD
CY2018Q1	us-gaap	Operating Expenses OperatingExpenses	23666000	USD
CY2018Q2	us-gaap	Operating Expenses OperatingExpenses	24920000	USD
CY2018Q3	us-gaap	Operating Expenses OperatingExpenses	27141000	USD
CY2018Q4	us-gaap	Operating Expenses OperatingExpenses	22814000	USD
CY2018Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	2170000	USD
CY2018Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	8943000	USD
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-9604000	USD
CY2018Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-12277000	USD
CY2018Q1	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-1046000	USD
CY2018Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	1387000	USD
CY2018Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	578000	USD
CY2018Q4	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	71000	USD
CY2018Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1124000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	10330000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-9026000	USD
CY2018Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-12206000	USD
CY2018Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-996000	USD
CY2018Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2296000	USD
CY2018Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-5294000	USD
CY2018Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-3638000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	2120000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	8034000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	-3732000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	-8568000	USD
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.11
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.41
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.19
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.43
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.11
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.40
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.19
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.43

Files In Submission

Name	View Source	Status
0001437749-20-003909-index-headers.html	Edgar Link	pending
0001437749-20-003909-index.html	Edgar Link	pending
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0001437749-20-003909-xbrl.zip	Edgar Link	pending
aaoi-20191231.xsd	Edgar Link	pending
aaoi-20191231_cal.xml	Edgar Link	unprocessable
aaoi-20191231_def.xml	Edgar Link	unprocessable
aaoi-20191231_lab.xml	Edgar Link	unprocessable
aaoi-20191231_pre.xml	Edgar Link	unprocessable
aaoi20191231_10k.htm	Edgar Link	pending
aaoi20191231_10k_htm.xml	Edgar Link	completed
ex_173487.htm	Edgar Link	pending
ex_173488.htm	Edgar Link	pending
ex_173489.htm	Edgar Link	pending
ex_173490.htm	Edgar Link	pending
ex_174285.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
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$AAOI
APPLIED OPTOELECTRONICS, INC. Stock $aaoi

2018 Q4 Form 10-K Financial Statement

#000143774920003909 Filed on February 28, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AAOI APPLIED OPTOELECTRONICS, INC. Stock $aaoi

2018 Q4 Form 10-K Financial Statement

#000143774920003909 Filed on February 28, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AAOI
APPLIED OPTOELECTRONICS, INC. Stock $aaoi