10-Q Filing

COHU INC CIK: 21535 Q3 2019

Filing Information

Form Type	10-Q
Accession Number	`0001437749-19-021739`
Period End Date	20190930
Filing Date	20191106
Fiscal Year	2019
Fiscal Period	Q3
XBRL Instance	cohu-20190928.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 104 Income Statement 116 Cash Flow Statement 101 Stockholders Equity 57 Comprehensive Income 48

Balance Sheet 104 line items

Line Item	Tag	Value	Unit	Period
Preferred stock, par value (in dollars per share)	`PreferredStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Preferred stock, par value (in dollars per share)	`PreferredStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Preferred stock, shares authorized (in shares)	`PreferredStockSharesAuthorized`	1.00M	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$164.46M	USD	Point-in-time
Preferred stock, shares authorized (in shares)	`PreferredStockSharesAuthorized`	1.00M	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$170.69M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$145.09M	USD	Point-in-time
Preferred stock, shares issued (in shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Preferred stock, shares issued (in shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Short-term investments	`AvailableForSaleSecuritiesCurrent`	$560.00K	USD	Point-in-time
Short-term investments	`AvailableForSaleSecuritiesCurrent`	$573.00K	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Accounts receivable, net	`AccountsAndOtherReceivablesNetCurrent`	$126.47M	USD	Point-in-time
Accounts receivable, net	`AccountsAndOtherReceivablesNetCurrent`	$149.28M	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Inventories	`InventoryNet`	$139.31M	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	60.00M	shares	Point-in-time
Inventories	`InventoryNet`	$133.92M	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	60.00M	shares	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	41.27M	shares	Point-in-time
Prepaid expenses	`PrepaidExpenseCurrent`	$26.21M	USD	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	40.76M	shares	Point-in-time
Prepaid expenses	`PrepaidExpenseCurrent`	$19.13M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$1.68M	USD	Point-in-time
Common stock, shares outstanding (in shares)	`CommonStockSharesOutstanding`	40.76M	shares	Point-in-time
Other current assets	`OtherAssetsCurrent`	$2.67M	USD	Point-in-time
Common stock, shares outstanding (in shares)	`CommonStockSharesOutstanding`	41.27M	shares	Point-in-time
Current assets of discontinued operations (Note 10)	`AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent`	$3.74M	USD	Point-in-time
Current assets of discontinued operations (Note 10)	`AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent`	$3.73M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$431.60M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$485.24M	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$74.33M	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$70.44M	USD	Point-in-time
Goodwill	`Goodwill`	$242.13M	USD	Point-in-time
Goodwill	`Goodwill`	$235.90M	USD	Point-in-time
Goodwill	`Goodwill`	$65.61M	USD	Point-in-time
Intangible assets, net	`IntangibleAssetsNetExcludingGoodwill`	$282.49M	USD	Point-in-time
Intangible assets, net	`IntangibleAssetsNetExcludingGoodwill`	$318.96M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$13.26M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$16.96M	USD	Point-in-time
Operating lease right of use assets	`OperatingLeaseRightOfUseAsset`	$34.10M	USD	Point-in-time
Operating lease right of use assets	`OperatingLeaseRightOfUseAsset`	-	USD	Point-in-time
Noncurrent assets of discontinued operations (Note 10)	`DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent`	$130.00K	USD	Point-in-time
Noncurrent assets of discontinued operations (Note 10)	`DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent`	$79.00K	USD	Point-in-time
Assets	`Assets`	$1.13B	USD	Point-in-time
Assets	`Assets`	$1.07B	USD	Point-in-time
Short-term borrowings	`ShortTermBankLoansAndNotesPayable`	$3.12M	USD	Point-in-time
Short-term borrowings	`ShortTermBankLoansAndNotesPayable`	$3.24M	USD	Point-in-time
Current installments of long-term debt	`LoansPayableToBankCurrent`	$3.67M	USD	Point-in-time
Current installments of long-term debt	`LoansPayableToBankCurrent`	$3.14M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$48.12M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$48.13M	USD	Point-in-time
Accrued compensation and benefits	`EmployeeRelatedLiabilitiesCurrent`	$29.40M	USD	Point-in-time
Accrued compensation and benefits	`EmployeeRelatedLiabilitiesCurrent`	$25.43M	USD	Point-in-time
Accrued warranty	`ProductWarrantyAccrualClassifiedCurrent`	$7.77M	USD	Point-in-time
Accrued warranty	`ProductWarrantyAccrualClassifiedCurrent`	$5.72M	USD	Point-in-time
Deferred profit	`DeferredProfit`	$6.90M	USD	Point-in-time
Deferred profit	`DeferredProfit`	$7.95M	USD	Point-in-time
Income taxes payable	`AccruedIncomeTaxesCurrent`	$6.27M	USD	Point-in-time
Income taxes payable	`AccruedIncomeTaxesCurrent`	$11.05M	USD	Point-in-time
Other accrued liabilities	`OtherAccruedLiabilitiesCurrent`	$50.05M	USD	Point-in-time
Other accrued liabilities	`OtherAccruedLiabilitiesCurrent`	$38.91M	USD	Point-in-time
Current liabilities of discontinued operations (Note 10)	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent`	$564.00K	USD	Point-in-time
Current liabilities of discontinued operations (Note 10)	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent`	$518.00K	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$139.35M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$160.59M	USD	Point-in-time
Accrued retirement benefits	`PostemploymentBenefitsLiabilityNoncurrent`	$19.74M	USD	Point-in-time
Accrued retirement benefits	`PostemploymentBenefitsLiabilityNoncurrent`	$20.04M	USD	Point-in-time
Noncurrent deferred gain on sale of facility	`DeferredGainOnSaleOfProperty`	$8.78M	USD	Point-in-time
Noncurrent deferred gain on sale of facility	`DeferredGainOnSaleOfProperty`	-	USD	Point-in-time
Deferred income taxes	`DeferredTaxLiabilitiesNoncurrent`	$38.94M	USD	Point-in-time
Deferred income taxes	`DeferredTaxLiabilitiesNoncurrent`	$29.80M	USD	Point-in-time
Noncurrent income tax liabilities	`AccruedIncomeTaxesNoncurrent`	$9.71M	USD	Point-in-time
Noncurrent income tax liabilities	`AccruedIncomeTaxesNoncurrent`	$9.46M	USD	Point-in-time
Long-term debt	`LongTermLoansFromBank`	$346.04M	USD	Point-in-time
Long-term debt	`LongTermLoansFromBank`	$344.92M	USD	Point-in-time
Other accrued liabilities	`OtherAccruedLiabilitiesNoncurrent`	$7.21M	USD	Point-in-time
Other accrued liabilities	`OtherAccruedLiabilitiesNoncurrent`	$4.26M	USD	Point-in-time
Long-term lease liabilities	`LeaseLiabilitiesNoncurrent`	$29.40M	USD	Point-in-time
Long-term lease liabilities	`LeaseLiabilitiesNoncurrent`	-	USD	Point-in-time
Noncurrent liabilities of discontinued operations (Note 10)	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent`	$34.00K	USD	Point-in-time
Noncurrent liabilities of discontinued operations (Note 10)	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent`	-	USD	Point-in-time
Preferred stock, $1 par value; 1,000 shares authorized, none issued	`PreferredStockValue`	-	USD	Point-in-time
Preferred stock, $1 par value; 1,000 shares authorized, none issued	`PreferredStockValue`	-	USD	Point-in-time
Common stock, $1 par value; 60,000 shares authorized, 41,265 shares issued and outstanding in 2019 and 40,763 shares in 2018	`CommonStockValue`	$41.27M	USD	Point-in-time
Common stock, $1 par value; 60,000 shares authorized, 41,265 shares issued and outstanding in 2019 and 40,763 shares in 2018	`CommonStockValue`	$40.76M	USD	Point-in-time
Paid-in capital	`AdditionalPaidInCapitalCommonStock`	$428.43M	USD	Point-in-time
Paid-in capital	`AdditionalPaidInCapitalCommonStock`	$419.69M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$111.67M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$62.32M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-25.88M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-40.26M	USD	Point-in-time
Total Cohu stockholders' equity	`StockholdersEquity`	$546.24M	USD	Point-in-time
Total Cohu stockholders' equity	`StockholdersEquity`	$491.75M	USD	Point-in-time
Noncontrolling interest	`MinorityInterest`	$-356.00K	USD	Point-in-time
Noncontrolling interest	`MinorityInterest`	$-299.00K	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$304.46M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$309.01M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$491.40M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$545.94M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$514.45M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$289.09M	USD	Point-in-time
LiabilitiesAndStockholdersEquity	`LiabilitiesAndStockholdersEquity`	$1.13B	USD	Point-in-time
LiabilitiesAndStockholdersEquity	`LiabilitiesAndStockholdersEquity`	$1.07B	USD	Point-in-time

Income Statement 116 line items

Line Item	Tag	Value	Unit	Period
Net sales	`RevenueFromContractWithCustomerIncludingAssessedTax`	$86.16M	USD	1 Quarter
Net sales	`RevenueFromContractWithCustomerIncludingAssessedTax`	$143.50M	USD	1 Quarter
Net sales	`RevenueFromContractWithCustomerIncludingAssessedTax`	$441.32M	USD	3 Qtrs
Net sales	`RevenueFromContractWithCustomerIncludingAssessedTax`	$281.13M	USD	3 Qtrs
Cost of sales (1)	`CostOfGoodsAndServicesSold`	$163.74M	USD	3 Qtrs
Cost of sales (1)	`CostOfGoodsAndServicesSold`	$84.56M	USD	1 Quarter
Cost of sales (1)	`CostOfGoodsAndServicesSold`	$51.14M	USD	1 Quarter
Cost of sales (1)	`CostOfGoodsAndServicesSold`	$265.56M	USD	3 Qtrs
Research and development	`ResearchAndDevelopmentExpense`	$65.32M	USD	3 Qtrs
Research and development	`ResearchAndDevelopmentExpense`	$20.48M	USD	1 Quarter
Research and development	`ResearchAndDevelopmentExpense`	$33.91M	USD	3 Qtrs
Research and development	`ResearchAndDevelopmentExpense`	$11.09M	USD	1 Quarter
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$33.69M	USD	1 Quarter
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$15.90M	USD	1 Quarter
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$108.40M	USD	3 Qtrs
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$50.99M	USD	3 Qtrs
Amortization of purchased intangible assets	`AmortizationOfIntangibleAssets`	$3.12M	USD	3 Qtrs
Amortization of purchased intangible assets	`AmortizationOfIntangibleAssets`	$1.02M	USD	1 Quarter
Amortization of purchased intangible assets	`AmortizationOfIntangibleAssets`	$29.98M	USD	3 Qtrs
Amortization of purchased intangible assets	`AmortizationOfIntangibleAssets`	$9.97M	USD	1 Quarter
Restructuring charges	`RestructuringCharges`	$814.00K	USD	1 Quarter
Restructuring charges	`RestructuringCharges`	-	USD	1 Quarter
Restructuring charges	`RestructuringCharges`	-	USD	3 Qtrs
Restructuring charges	`RestructuringCharges`	$10.72M	USD	3 Qtrs
CostsAndExpenses	`CostsAndExpenses`	$149.52M	USD	1 Quarter
CostsAndExpenses	`CostsAndExpenses`	$251.76M	USD	3 Qtrs
CostsAndExpenses	`CostsAndExpenses`	$479.99M	USD	3 Qtrs
CostsAndExpenses	`CostsAndExpenses`	$79.15M	USD	1 Quarter
Income (loss) from operations	`OperatingIncomeLoss`	$-6.02M	USD	1 Quarter
Income (loss) from operations	`OperatingIncomeLoss`	$7.01M	USD	1 Quarter
Income (loss) from operations	`OperatingIncomeLoss`	$-38.67M	USD	3 Qtrs
Income (loss) from operations	`OperatingIncomeLoss`	$29.37M	USD	3 Qtrs
Interest expense	`InterestExpense`	$33.00K	USD	3 Qtrs
Interest expense	`InterestExpense`	$5.00M	USD	1 Quarter
Interest expense	`InterestExpense`	$15.79M	USD	3 Qtrs
Interest expense	`InterestExpense`	$11.00K	USD	1 Quarter
Interest income	`InvestmentIncomeInterestAndDividend`	$190.00K	USD	1 Quarter
Interest income	`InvestmentIncomeInterestAndDividend`	$603.00K	USD	3 Qtrs
Interest income	`InvestmentIncomeInterestAndDividend`	$337.00K	USD	1 Quarter
Interest income	`InvestmentIncomeInterestAndDividend`	$913.00K	USD	3 Qtrs
Foreign transaction gain (loss)	`ForeignCurrencyTransactionGainLossBeforeTax`	$-232.00K	USD	1 Quarter
Foreign transaction gain (loss)	`ForeignCurrencyTransactionGainLossBeforeTax`	$1.30M	USD	3 Qtrs
Foreign transaction gain (loss)	`ForeignCurrencyTransactionGainLossBeforeTax`	$1.63M	USD	1 Quarter
Foreign transaction gain (loss)	`ForeignCurrencyTransactionGainLossBeforeTax`	$1.22M	USD	3 Qtrs
Income (loss) from continuing operations before taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$7.11M	USD	1 Quarter
Income (loss) from continuing operations before taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$31.47M	USD	3 Qtrs
Income (loss) from continuing operations before taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-9.20M	USD	1 Quarter
Income (loss) from continuing operations before taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-52.55M	USD	3 Qtrs
Income tax provision	`IncomeTaxExpenseBenefit`	$161.00K	USD	3 Qtrs
Income tax provision	`IncomeTaxExpenseBenefit`	$1.28M	USD	1 Quarter
Income tax provision	`IncomeTaxExpenseBenefit`	$2.30M	USD	1 Quarter
Income tax provision	`IncomeTaxExpenseBenefit`	$6.90M	USD	3 Qtrs
Income (loss) from continuing operations	`IncomeLossFromContinuingOperations`	$-10.48M	USD	1 Quarter
Income (loss) from continuing operations	`IncomeLossFromContinuingOperations`	$24.57M	USD	3 Qtrs
Income (loss) from continuing operations	`IncomeLossFromContinuingOperations`	$4.80M	USD	1 Quarter
Income (loss) from continuing operations	`IncomeLossFromContinuingOperations`	$-52.71M	USD	3 Qtrs
Income from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	-	USD	3 Qtrs
Income from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	$154.00K	USD	1 Quarter
Income from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	-	USD	1 Quarter
Income from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	$342.00K	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$24.57M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$-10.33M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$4.80M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$-52.37M	USD	3 Qtrs
Net income attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	-	USD	3 Qtrs
Net income attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$62.00K	USD	3 Qtrs
Net income attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$142.00K	USD	1 Quarter
Net income attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	-	USD	1 Quarter
Net income (loss) attributable to Cohu	`NetIncomeLoss`	$24.57M	USD	3 Qtrs
Net income (loss) attributable to Cohu	`NetIncomeLoss`	$4.80M	USD	1 Quarter
Net income (loss) attributable to Cohu	`NetIncomeLoss`	$-52.43M	USD	3 Qtrs
Net income (loss) attributable to Cohu	`NetIncomeLoss`	$-10.47M	USD	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	28.95M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	41.08M	shares	3 Qtrs
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	41.23M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	28.81M	shares	3 Qtrs
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	41.23M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	29.65M	shares	3 Qtrs
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	41.08M	shares	3 Qtrs
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	29.77M	shares	1 Quarter
Cash dividends declared per share (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.18	USD	3 Qtrs
Cash dividends declared per share (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.18	USD	3 Qtrs
Cash dividends declared per share (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.06	USD	1 Quarter
Cash dividends declared per share (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.06	USD	1 Quarter
Income (loss) from continuing operations before noncontrolling interest (in dollars per share)	`IncomeLossFromContinuingOperationsPerBasicShare`	$0.17	USD	1 Quarter
Income (loss) from continuing operations before noncontrolling interest (in dollars per share)	`IncomeLossFromContinuingOperationsPerBasicShare`	$-1.28	USD	3 Qtrs
Income (loss) from continuing operations before noncontrolling interest (in dollars per share)	`IncomeLossFromContinuingOperationsPerBasicShare`	$0.85	USD	3 Qtrs
Income (loss) from continuing operations before noncontrolling interest (in dollars per share)	`IncomeLossFromContinuingOperationsPerBasicShare`	$-0.25	USD	1 Quarter
Income from discontinued operations (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	-	USD	1 Quarter
Income from discontinued operations (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	-	USD	1 Quarter
Income from discontinued operations (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	-	USD	3 Qtrs
Income from discontinued operations (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	-	USD	3 Qtrs
Net income attributable to noncontrolling interest (in dollars per share)	`NetIncomeLossAttributableToNoncontrollingInterestPerBasicShare`	-	USD	3 Qtrs
Net income attributable to noncontrolling interest (in dollars per share)	`NetIncomeLossAttributableToNoncontrollingInterestPerBasicShare`	-	USD	3 Qtrs
Net income attributable to noncontrolling interest (in dollars per share)	`NetIncomeLossAttributableToNoncontrollingInterestPerBasicShare`	-	USD	1 Quarter
Net income attributable to noncontrolling interest (in dollars per share)	`NetIncomeLossAttributableToNoncontrollingInterestPerBasicShare`	-	USD	1 Quarter
Net income (loss) attributable to Cohu (in dollars per share)	`EarningsPerShareBasic`	$0.85	USD	3 Qtrs
Net income (loss) attributable to Cohu (in dollars per share)	`EarningsPerShareBasic`	$-1.28	USD	3 Qtrs
Net income (loss) attributable to Cohu (in dollars per share)	`EarningsPerShareBasic`	$0.17	USD	1 Quarter
Net income (loss) attributable to Cohu (in dollars per share)	`EarningsPerShareBasic`	$-0.25	USD	1 Quarter
Income (loss) from continuing operations before noncontrolling interest (in dollars per share)	`IncomeLossFromContinuingOperationsPerDilutedShare`	$0.83	USD	3 Qtrs
Income (loss) from continuing operations before noncontrolling interest (in dollars per share)	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-1.28	USD	3 Qtrs
Income (loss) from continuing operations before noncontrolling interest (in dollars per share)	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-0.25	USD	1 Quarter
Income (loss) from continuing operations before noncontrolling interest (in dollars per share)	`IncomeLossFromContinuingOperationsPerDilutedShare`	$0.16	USD	1 Quarter
Income from discontinued operations (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	-	USD	3 Qtrs
Income from discontinued operations (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	-	USD	1 Quarter
Income from discontinued operations (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	-	USD	3 Qtrs
Income from discontinued operations (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	-	USD	1 Quarter
Net income attributable to noncontrolling interest (in dollars per share)	`NetIncomeLossAttributableToNoncontrollingInterestPerDilutedShare`	-	USD	1 Quarter
Net income attributable to noncontrolling interest (in dollars per share)	`NetIncomeLossAttributableToNoncontrollingInterestPerDilutedShare`	-	USD	1 Quarter
Net income attributable to noncontrolling interest (in dollars per share)	`NetIncomeLossAttributableToNoncontrollingInterestPerDilutedShare`	-	USD	3 Qtrs
Net income attributable to noncontrolling interest (in dollars per share)	`NetIncomeLossAttributableToNoncontrollingInterestPerDilutedShare`	-	USD	3 Qtrs
Net income (loss) attributable to Cohu (in dollars per share)	`EarningsPerShareDiluted`	$-1.28	USD	3 Qtrs
Net income (loss) attributable to Cohu (in dollars per share)	`EarningsPerShareDiluted`	$0.83	USD	3 Qtrs
Net income (loss) attributable to Cohu (in dollars per share)	`EarningsPerShareDiluted`	$0.16	USD	1 Quarter
Net income (loss) attributable to Cohu (in dollars per share)	`EarningsPerShareDiluted`	$-0.25	USD	1 Quarter

Cash Flow Statement 101 line items

Line Item	Tag	Value	Unit	Period
Net income (loss) attributable to Cohu	`NetIncomeLoss`	$24.57M	USD	3 Qtrs
Net income (loss) attributable to Cohu	`NetIncomeLoss`	$4.80M	USD	1 Quarter
Net income (loss) attributable to Cohu	`NetIncomeLoss`	$-52.43M	USD	3 Qtrs
Net income (loss) attributable to Cohu	`NetIncomeLoss`	$-10.47M	USD	1 Quarter
Net income attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	-	USD	3 Qtrs
Net income attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$62.00K	USD	3 Qtrs
Net income attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$142.00K	USD	1 Quarter
Net income attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	-	USD	1 Quarter
(Gain) loss on disposal of assets	`DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax`	$-29.00K	USD	3 Qtrs
(Gain) loss on disposal of assets	`DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax`	$350.00K	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$7.28M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$45.35M	USD	3 Qtrs
Share-based compensation expense	`ShareBasedCompensation`	$5.50M	USD	3 Qtrs
Share-based compensation expense	`ShareBasedCompensation`	$10.86M	USD	3 Qtrs
Amortization of inventory step-up and inventory related charges	`AmortizationOfInventoryStepup`	$5.94M	USD	3 Qtrs
Amortization of inventory step-up and inventory related charges	`AmortizationOfInventoryStepup`	-	USD	3 Qtrs
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-253.00K	USD	3 Qtrs
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-7.70M	USD	3 Qtrs
Increase in accrued retiree medical benefits	`PensionAndOtherPostretirementBenefitExpense`	$281.00K	USD	3 Qtrs
Increase in accrued retiree medical benefits	`PensionAndOtherPostretirementBenefitExpense`	-	USD	3 Qtrs
Changes in other accrued liabilities	`IncreaseDecreaseInOtherAccruedLiabilities`	$-409.00K	USD	3 Qtrs
Changes in other accrued liabilities	`IncreaseDecreaseInOtherAccruedLiabilities`	$4.00M	USD	3 Qtrs
Changes in other assets	`IncreaseDecreaseInOtherNoncurrentAssets`	$667.00K	USD	3 Qtrs
Changes in other assets	`IncreaseDecreaseInOtherNoncurrentAssets`	$2.85M	USD	3 Qtrs
Interest capitalized associated with cloud computing implementation	`InterestCapitalizedCloudComputingImplementation`	-	USD	3 Qtrs
Interest capitalized associated with cloud computing implementation	`InterestCapitalizedCloudComputingImplementation`	$68.00K	USD	3 Qtrs
Adjustment to contingent consideration liability	`BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1`	$657.00K	USD	3 Qtrs
Adjustment to contingent consideration liability	`BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1`	-	USD	3 Qtrs
Amortization of debt discounts and issuance costs	`AmortizationOfFinancingCostsAndDiscounts`	$300.00K	USD	1 Quarter
Amortization of debt discounts and issuance costs	`AmortizationOfFinancingCostsAndDiscounts`	$826.00K	USD	3 Qtrs
Amortization of debt discounts and issuance costs	`AmortizationOfFinancingCostsAndDiscounts`	-	USD	3 Qtrs
Amortization of debt discounts and issuance costs	`AmortizationOfFinancingCostsAndDiscounts`	-	USD	1 Quarter
Accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$8.09M	USD	3 Qtrs
Accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$-21.76M	USD	3 Qtrs
Other current assets	`IncreaseDecreaseInOtherCurrentAssets`	$7.30M	USD	3 Qtrs
Other current assets	`IncreaseDecreaseInOtherCurrentAssets`	$-328.00K	USD	3 Qtrs
Inventories	`IncreaseDecreaseInInventories`	$2.56M	USD	3 Qtrs
Inventories	`IncreaseDecreaseInInventories`	$660.00K	USD	3 Qtrs
Deferred profit	`IncreaseDecreaseInDeferredProfit`	$1.10M	USD	3 Qtrs
Deferred profit	`IncreaseDecreaseInDeferredProfit`	$-3.46M	USD	3 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-2.80M	USD	3 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$1.04M	USD	3 Qtrs
Income taxes payable	`IncreaseDecreaseInAccruedIncomeTaxesPayable`	$3.90M	USD	3 Qtrs
Income taxes payable	`IncreaseDecreaseInAccruedIncomeTaxesPayable`	$-3.75M	USD	3 Qtrs
Accrued compensation, warranty and other liabilities	`IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities`	$-8.82M	USD	3 Qtrs
Accrued compensation, warranty and other liabilities	`IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities`	$1.35M	USD	3 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$29.21M	USD	3 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$3.44M	USD	3 Qtrs
Purchases of property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$13.35M	USD	3 Qtrs
Purchases of property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$2.47M	USD	3 Qtrs
Purchases of short-term investments	`PaymentsToAcquireShortTermInvestments`	$38.70M	USD	3 Qtrs
Purchases of short-term investments	`PaymentsToAcquireShortTermInvestments`	-	USD	3 Qtrs
Sales and maturities of short-term investments	`ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities`	$59.48M	USD	3 Qtrs
Sales and maturities of short-term investments	`ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities`	-	USD	3 Qtrs
Cash received from sale of fixed assets	`ProceedsFromSalesOfAssetsInvestingActivities`	$1.52M	USD	3 Qtrs
Cash received from sale of fixed assets	`ProceedsFromSalesOfAssetsInvestingActivities`	$25.00K	USD	3 Qtrs
Net cash provided by (used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$18.33M	USD	3 Qtrs
Net cash provided by (used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-11.83M	USD	3 Qtrs
Proceeds from Rasco term loan	`ProceedsFromIssuanceOfLongTermDebt`	-	USD	3 Qtrs
Proceeds from Rasco term loan	`ProceedsFromIssuanceOfLongTermDebt`	$3.72M	USD	3 Qtrs
Cash dividends paid	`PaymentsOfDividendsCommonStock`	$7.36M	USD	3 Qtrs
Cash dividends paid	`PaymentsOfDividendsCommonStock`	$5.22M	USD	3 Qtrs
Repurchases of common stock, net	`ProceedsFromRepurchaseOfEquity`	$-2.55M	USD	3 Qtrs
Repurchases of common stock, net	`ProceedsFromRepurchaseOfEquity`	$-1.21M	USD	3 Qtrs
Payment of contingent consideration for Kita	`PaymentForContingentConsiderationLiabilityFinancingActivities`	-	USD	3 Qtrs
Payment of contingent consideration for Kita	`PaymentForContingentConsiderationLiabilityFinancingActivities`	$823.00K	USD	3 Qtrs
Repayments of long-term debt	`ProceedsFromRepaymentsOfBankDebt`	$-3.60M	USD	3 Qtrs
Repayments of long-term debt	`ProceedsFromRepaymentsOfBankDebt`	$-975.00K	USD	3 Qtrs
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-8.45M	USD	3 Qtrs
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-9.57M	USD	3 Qtrs
Effect of exchange rate changes on cash and cash equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$-1.81M	USD	3 Qtrs
Effect of exchange rate changes on cash and cash equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$-1.56M	USD	3 Qtrs
Net increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-18.65M	USD	3 Qtrs
Net increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$36.41M	USD	3 Qtrs
Cash and cash equivalents including discontinued operations at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$146.27M	USD	Point-in-time
Cash and cash equivalents including discontinued operations at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$170.69M	USD	Point-in-time
Cash and cash equivalents including discontinued operations at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$134.29M	USD	Point-in-time
Cash and cash equivalents including discontinued operations at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$164.92M	USD	Point-in-time
Cash and cash equivalents including discontinued operations at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$146.27M	USD	Point-in-time
Cash and cash equivalents including discontinued operations at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$170.69M	USD	Point-in-time
Cash and cash equivalents including discontinued operations at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$134.29M	USD	Point-in-time
Cash and cash equivalents including discontinued operations at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$164.92M	USD	Point-in-time
Cash held by discontinued operations at end of period (Note 10)	`DisposalGroupIncludingDiscontinuedOperationCash`	-	USD	Point-in-time
Cash held by discontinued operations at end of period (Note 10)	`DisposalGroupIncludingDiscontinuedOperationCash`	$1.18M	USD	Point-in-time
Cash and cash equivalents from continuing operations at end of the period	`CashAndCashEquivalentsAtCarryingValue`	$164.46M	USD	Point-in-time
Cash and cash equivalents from continuing operations at end of the period	`CashAndCashEquivalentsAtCarryingValue`	$170.69M	USD	Point-in-time
Cash and cash equivalents from continuing operations at end of the period	`CashAndCashEquivalentsAtCarryingValue`	$145.09M	USD	Point-in-time
Cash paid for interest	`InterestPaidNet`	$14.82M	USD	3 Qtrs
Cash paid for interest	`InterestPaidNet`	-	USD	3 Qtrs
Cash paid for income taxes	`IncomeTaxesPaidNet`	$3.55M	USD	3 Qtrs
Cash paid for income taxes	`IncomeTaxesPaidNet`	$13.28M	USD	3 Qtrs
Inventory capitalized as property, plant and equipment	`InventoryCapitalizedAsPropertyPlantAndEquipment`	$261.00K	USD	3 Qtrs
Inventory capitalized as property, plant and equipment	`InventoryCapitalizedAsPropertyPlantAndEquipment`	$514.00K	USD	3 Qtrs
Dividends declared but not yet paid	`DividendsPayableCurrentAndNoncurrent`	$1.73M	USD	Point-in-time
Dividends declared but not yet paid	`DividendsPayableCurrentAndNoncurrent`	$2.47M	USD	Point-in-time
Property, plant and equipment purchases included in accounts payable	`CapitalExpendituresIncurredButNotYetPaid`	$853.00K	USD	3 Qtrs
Property, plant and equipment purchases included in accounts payable	`CapitalExpendituresIncurredButNotYetPaid`	$311.00K	USD	3 Qtrs
Capitalized cloud computing service costs included in accounts payable	`CapitalizedCloudComputingServiceCostsButNotYetPaid`	$2.19M	USD	3 Qtrs
Capitalized cloud computing service costs included in accounts payable	`CapitalizedCloudComputingServiceCostsButNotYetPaid`	$1.04M	USD	3 Qtrs
Capitalized debt issuance costs included in current other accrued liabilities	`CapitalizedDebtIssuanceCosts`	-	USD	3 Qtrs
Capitalized debt issuance costs included in current other accrued liabilities	`CapitalizedDebtIssuanceCosts`	$1.52M	USD	3 Qtrs

Stockholders Equity 57 line items

Line Item	Tag	Value	Unit	Period
Cash dividend, per share (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.18	USD	3 Qtrs
Cash dividend, per share (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.18	USD	3 Qtrs
Cash dividend, per share (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.06	USD	1 Quarter
Cash dividend, per share (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.06	USD	1 Quarter
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$304.46M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$309.01M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$491.40M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$545.94M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$514.45M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$289.09M	USD	Point-in-time
Net income (loss)	`NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest`	$-10.33M	USD	1 Quarter
Net income (loss)	`NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest`	$-52.37M	USD	3 Qtrs
Net income (loss)	`NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest`	$4.80M	USD	1 Quarter
Net income (loss)	`NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest`	$24.57M	USD	3 Qtrs
Changes in cumulative translation adjustment	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-14.85M	USD	3 Qtrs
Changes in cumulative translation adjustment	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-3.44M	USD	3 Qtrs
Changes in cumulative translation adjustment	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-475.00K	USD	1 Quarter
Changes in cumulative translation adjustment	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-13.28M	USD	1 Quarter
Adjustments related to postretirement benefits, net of tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-35.00K	USD	1 Quarter
Adjustments related to postretirement benefits, net of tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$24.00K	USD	1 Quarter
Adjustments related to postretirement benefits, net of tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-17.00K	USD	3 Qtrs
Adjustments related to postretirement benefits, net of tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-470.00K	USD	3 Qtrs
Cash dividends	`DividendsCommonStockCash`	$1.73M	USD	1 Quarter
Cash dividends	`DividendsCommonStockCash`	$2.47M	USD	1 Quarter
Cash dividends	`DividendsCommonStockCash`	$5.25M	USD	3 Qtrs
Cash dividends	`DividendsCommonStockCash`	$7.38M	USD	3 Qtrs
Exercise of stock options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$640.00K	USD	3 Qtrs
Exercise of stock options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$330.00K	USD	3 Qtrs
Exercise of stock options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$208.00K	USD	1 Quarter
Exercise of stock options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$126.00K	USD	1 Quarter
Shares issued for restricted stock units vested	`StockIssuedDuringPeriodValueRestrictedStockAwardGross`	-	USD	1 Quarter
Shares issued for restricted stock units vested	`StockIssuedDuringPeriodValueRestrictedStockAwardGross`	-	USD	3 Qtrs
Shares issued for restricted stock units vested	`StockIssuedDuringPeriodValueRestrictedStockAwardGross`	-	USD	3 Qtrs
Shares issued for restricted stock units vested	`StockIssuedDuringPeriodValueRestrictedStockAwardGross`	-	USD	1 Quarter
Repurchase and retirement of stock	`StockRepurchasedAndRetiredDuringPeriodValue`	$730.00K	USD	1 Quarter
Repurchase and retirement of stock	`StockRepurchasedAndRetiredDuringPeriodValue`	$41.00K	USD	1 Quarter
Repurchase and retirement of stock	`StockRepurchasedAndRetiredDuringPeriodValue`	$3.96M	USD	3 Qtrs
Repurchase and retirement of stock	`StockRepurchasedAndRetiredDuringPeriodValue`	$2.76M	USD	3 Qtrs
Share-based compensation expense	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$1.88M	USD	1 Quarter
Share-based compensation expense	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$10.86M	USD	3 Qtrs
Share-based compensation expense	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$3.51M	USD	1 Quarter
Share-based compensation expense	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$5.50M	USD	3 Qtrs
Cumulative effect of accounting change(a)	`CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption`	$1.06M	USD	Point-in-time
Cumulative effect of accounting change(a)	`CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption`	$10.35M	USD	Point-in-time
Shares issued under ESPP	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$807.00K	USD	3 Qtrs
Shares issued under ESPP	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$762.00K	USD	3 Qtrs
Noncontrolling interest	`MinorityInterestPeriodIncreaseDecrease`	-	USD	3 Qtrs
Changes in unrealized gains and losses on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$7.00K	USD	3 Qtrs
Changes in unrealized gains and losses on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	-	USD	3 Qtrs
Changes in unrealized gains and losses on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	-	USD	1 Quarter
Changes in unrealized gains and losses on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$9.00K	USD	1 Quarter
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$304.46M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$309.01M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$491.40M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$545.94M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$514.45M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$289.09M	USD	Point-in-time

Comprehensive Income 48 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`ProfitLoss`	$24.57M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$-10.33M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$4.80M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$-52.37M	USD	3 Qtrs
Net income attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	-	USD	3 Qtrs
Net income attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$62.00K	USD	3 Qtrs
Net income attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$142.00K	USD	1 Quarter
Net income attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	-	USD	1 Quarter
Net income (loss) attributable to Cohu	`NetIncomeLoss`	$24.57M	USD	3 Qtrs
Net income (loss) attributable to Cohu	`NetIncomeLoss`	$4.80M	USD	1 Quarter
Net income (loss) attributable to Cohu	`NetIncomeLoss`	$-52.43M	USD	3 Qtrs
Net income (loss) attributable to Cohu	`NetIncomeLoss`	$-10.47M	USD	1 Quarter
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-14.85M	USD	3 Qtrs
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-3.44M	USD	3 Qtrs
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-475.00K	USD	1 Quarter
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-13.28M	USD	1 Quarter
Adjustments related to postretirement benefits	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-35.00K	USD	1 Quarter
Adjustments related to postretirement benefits	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$24.00K	USD	1 Quarter
Adjustments related to postretirement benefits	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-17.00K	USD	3 Qtrs
Adjustments related to postretirement benefits	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-470.00K	USD	3 Qtrs
Change in unrealized gain/loss on investments	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$7.00K	USD	3 Qtrs
Change in unrealized gain/loss on investments	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	-	USD	3 Qtrs
Change in unrealized gain/loss on investments	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	-	USD	1 Quarter
Change in unrealized gain/loss on investments	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$9.00K	USD	1 Quarter
Other comprehensive loss, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-3.41M	USD	3 Qtrs
Other comprehensive loss, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-490.00K	USD	1 Quarter
Other comprehensive loss, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-13.24M	USD	1 Quarter
Other comprehensive loss, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-14.38M	USD	3 Qtrs
Other comprehensive loss attributable to noncontrolling interest	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest`	-	USD	3 Qtrs
Other comprehensive loss attributable to noncontrolling interest	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest`	$-4.00K	USD	3 Qtrs
Other comprehensive loss attributable to noncontrolling interest	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest`	-	USD	1 Quarter
Other comprehensive loss attributable to noncontrolling interest	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest`	-	USD	1 Quarter
Other comprehensive loss attributable to Cohu	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-3.41M	USD	3 Qtrs
Other comprehensive loss attributable to Cohu	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-13.24M	USD	1 Quarter
Other comprehensive loss attributable to Cohu	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-490.00K	USD	1 Quarter
Other comprehensive loss attributable to Cohu	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-14.38M	USD	3 Qtrs
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-23.57M	USD	1 Quarter
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$4.31M	USD	1 Quarter
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-66.76M	USD	3 Qtrs
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$21.16M	USD	3 Qtrs
Comprehensive income attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	-	USD	1 Quarter
Comprehensive income attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$58.00K	USD	3 Qtrs
Comprehensive income attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	-	USD	3 Qtrs
Comprehensive income attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$142.00K	USD	1 Quarter
Comprehensive income (loss) attributable to Cohu	`ComprehensiveIncomeNetOfTax`	$21.16M	USD	3 Qtrs
Comprehensive income (loss) attributable to Cohu	`ComprehensiveIncomeNetOfTax`	$-66.81M	USD	3 Qtrs
Comprehensive income (loss) attributable to Cohu	`ComprehensiveIncomeNetOfTax`	$-23.71M	USD	1 Quarter
Comprehensive income (loss) attributable to Cohu	`ComprehensiveIncomeNetOfTax`	$4.31M	USD	1 Quarter

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.