3.20.1 html 250 515 1 false 79 0 false 6 false false R1.htm 1001 - Document - Cover Page Sheet http://astro-med.com/role/CoverPage Cover Page Cover 1 false false R2.htm 1002 - Statement - Consolidated Balance Sheets Sheet http://astro-med.com/role/ConsolidatedBalanceSheets Consolidated Balance Sheets Statements 2 false false R3.htm 1003 - Statement - Consolidated Balance Sheets (Parenthetical) Sheet http://astro-med.com/role/ConsolidatedBalanceSheetsParenthetical Consolidated Balance Sheets (Parenthetical) Statements 3 false false R4.htm 1004 - Statement - Consolidated Statements of Income Sheet http://astro-med.com/role/ConsolidatedStatementsOfIncome Consolidated Statements of Income Statements 4 false false R5.htm 1005 - Statement - Consolidated Statements of Comprehensive Income Sheet http://astro-med.com/role/ConsolidatedStatementsOfComprehensiveIncome Consolidated Statements of Comprehensive Income Statements 5 false false R6.htm 1006 - Statement - Consolidated Statements of Changes in Shareholders' Equity Sheet http://astro-med.com/role/ConsolidatedStatementsOfChangesInShareholdersEquity Consolidated Statements of Changes in Shareholders' Equity Statements 6 false false R7.htm 1007 - Statement - Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) Sheet http://astro-med.com/role/ConsolidatedStatementsOfChangesInShareholdersEquityParenthetical Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) Statements 7 false false R8.htm 1008 - Statement - Consolidated Statements of Cash Flows Sheet http://astro-med.com/role/ConsolidatedStatementsOfCashFlows Consolidated Statements of Cash Flows Statements 8 false false R9.htm 1009 - Disclosure - Summary of Significant Accounting Policies Sheet http://astro-med.com/role/SummaryOfSignificantAccountingPolicies Summary of Significant Accounting Policies Notes 9 false false R10.htm 1010 - Disclosure - Revenue Recognition Sheet http://astro-med.com/role/RevenueRecognition Revenue Recognition Notes 10 false false R11.htm 1011 - Disclosure - Intangible Assets Sheet http://astro-med.com/role/IntangibleAssets Intangible Assets Notes 11 false false R12.htm 1012 - Disclosure - Inventories Sheet http://astro-med.com/role/Inventories Inventories Notes 12 false false R13.htm 1013 - Disclosure - Property, Plant and Equipment Sheet http://astro-med.com/role/PropertyPlantAndEquipment Property, Plant and Equipment Notes 13 false false R14.htm 1014 - Disclosure - Accrued Expenses Sheet http://astro-med.com/role/AccruedExpenses Accrued Expenses Notes 14 false false R15.htm 1015 - Disclosure - Long- Term Debt and Other Financing Arrangements Sheet http://astro-med.com/role/LongTermDebtAndOtherFinancingArrangements Long- Term Debt and Other Financing Arrangements Notes 15 false false R16.htm 1016 - Disclosure - Derivative Financial Instruments and Risk Management Sheet http://astro-med.com/role/DerivativeFinancialInstrumentsAndRiskManagement Derivative Financial Instruments and Risk Management Notes 16 false false R17.htm 1017 - Disclosure - Royalty Obligation Sheet http://astro-med.com/role/RoyaltyObligation Royalty Obligation Notes 17 false false R18.htm 1018 - Disclosure - Leases Sheet http://astro-med.com/role/Leases Leases Notes 18 false false R19.htm 1019 - Disclosure - Accumulated Other Comprehensive Loss Sheet http://astro-med.com/role/AccumulatedOtherComprehensiveLoss Accumulated Other Comprehensive Loss Notes 19 false false R20.htm 1020 - Disclosure - Shareholders' Equity Sheet http://astro-med.com/role/ShareholdersEquity Shareholders' Equity Notes 20 false false R21.htm 1021 - Disclosure - Share-Based Compensation Sheet http://astro-med.com/role/ShareBasedCompensation Share-Based Compensation Notes 21 false false R22.htm 1022 - Disclosure - Income Taxes Sheet http://astro-med.com/role/IncomeTaxes Income Taxes Notes 22 false false R23.htm 1023 - Disclosure - Nature of Operations, Segment Reporting and Geographical Information Sheet http://astro-med.com/role/NatureOfOperationsSegmentReportingAndGeographicalInformation Nature of Operations, Segment Reporting and Geographical Information Notes 23 false false R24.htm 1024 - Disclosure - Employee Benefit Plans Sheet http://astro-med.com/role/EmployeeBenefitPlans Employee Benefit Plans Notes 24 false false R25.htm 1025 - Disclosure - Product Warranty Liability Sheet http://astro-med.com/role/ProductWarrantyLiability Product Warranty Liability Notes 25 false false R26.htm 1026 - Disclosure - Concentration of Risk Sheet http://astro-med.com/role/ConcentrationOfRisk Concentration of Risk Notes 26 false false R27.htm 1027 - Disclosure - Commitments and Contingencies Sheet http://astro-med.com/role/CommitmentsAndContingencies Commitments and Contingencies Notes 27 false false R28.htm 1028 - Disclosure - Fair Value Measurements Sheet http://astro-med.com/role/FairValueMeasurements Fair Value Measurements Notes 28 false false R29.htm 1029 - Disclosure - Subsequent Event Sheet http://astro-med.com/role/SubsequentEvent Subsequent Event Notes 29 false false R30.htm 1030 - Disclosure - Schedule II - Valuation and Qualifying Accounts and Reserves Sheet http://astro-med.com/role/ScheduleIiValuationAndQualifyingAccountsAndReserves Schedule II - Valuation and Qualifying Accounts and Reserves Notes 30 false false R31.htm 1031 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://astro-med.com/role/SummaryOfSignificantAccountingPoliciesPolicies Summary of Significant Accounting Policies (Policies) Policies http://astro-med.com/role/SummaryOfSignificantAccountingPolicies 31 false false R32.htm 1032 - Disclosure - Revenue Recognition (Tables) Sheet http://astro-med.com/role/RevenueRecognitionTables Revenue Recognition (Tables) Tables http://astro-med.com/role/RevenueRecognition 32 false false R33.htm 1033 - Disclosure - Intangible Assets (Tables) Sheet http://astro-med.com/role/IntangibleAssetsTables Intangible Assets (Tables) Tables http://astro-med.com/role/IntangibleAssets 33 false false R34.htm 1034 - Disclosure - Inventories (Tables) Sheet http://astro-med.com/role/InventoriesTables Inventories (Tables) Tables http://astro-med.com/role/Inventories 34 false false R35.htm 1035 - Disclosure - Property, Plant and Equipment (Tables) Sheet http://astro-med.com/role/PropertyPlantAndEquipmentTables Property, Plant and Equipment (Tables) Tables http://astro-med.com/role/PropertyPlantAndEquipment 35 false false R36.htm 1036 - Disclosure - Accrued Expenses (Tables) Sheet http://astro-med.com/role/AccruedExpensesTables Accrued Expenses (Tables) Tables http://astro-med.com/role/AccruedExpenses 36 false false R37.htm 1037 - Disclosure - Long- Term Debt and Other Financing Arrangements (Tables) Sheet http://astro-med.com/role/LongTermDebtAndOtherFinancingArrangementsTables Long- Term Debt and Other Financing Arrangements (Tables) Tables http://astro-med.com/role/LongTermDebtAndOtherFinancingArrangements 37 false false R38.htm 1038 - Disclosure - Derivative Financial Instruments and Risk Management (Tables) Sheet http://astro-med.com/role/DerivativeFinancialInstrumentsAndRiskManagementTables Derivative Financial Instruments and Risk Management (Tables) Tables http://astro-med.com/role/DerivativeFinancialInstrumentsAndRiskManagement 38 false false R39.htm 1039 - Disclosure - Leases (Tables) Sheet http://astro-med.com/role/LeasesTables Leases (Tables) Tables http://astro-med.com/role/Leases 39 false false R40.htm 1040 - Disclosure - Accumulated Other Comprehensive Loss (Tables) Sheet http://astro-med.com/role/AccumulatedOtherComprehensiveLossTables Accumulated Other Comprehensive Loss (Tables) Tables http://astro-med.com/role/AccumulatedOtherComprehensiveLoss 40 false false R41.htm 1041 - Disclosure - Share-Based Compensation (Tables) Sheet http://astro-med.com/role/ShareBasedCompensationTables Share-Based Compensation (Tables) Tables http://astro-med.com/role/ShareBasedCompensation 41 false false R42.htm 1042 - Disclosure - Income Taxes (Tables) Sheet http://astro-med.com/role/IncomeTaxesTables Income Taxes (Tables) Tables http://astro-med.com/role/IncomeTaxes 42 false false R43.htm 1043 - Disclosure - Nature of Operations, Segment Reporting and Geographical Information (Tables) Sheet http://astro-med.com/role/NatureOfOperationsSegmentReportingAndGeographicalInformationTables Nature of Operations, Segment Reporting and Geographical Information (Tables) Tables http://astro-med.com/role/NatureOfOperationsSegmentReportingAndGeographicalInformation 43 false false R44.htm 1044 - Disclosure - Product Warranty Liability (Tables) Sheet http://astro-med.com/role/ProductWarrantyLiabilityTables Product Warranty Liability (Tables) Tables http://astro-med.com/role/ProductWarrantyLiability 44 false false R45.htm 1045 - Disclosure - Fair Value Measurements (Tables) Sheet http://astro-med.com/role/FairValueMeasurementsTables Fair Value Measurements (Tables) Tables http://astro-med.com/role/FairValueMeasurements 45 false false R46.htm 1046 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Detail) Sheet http://astro-med.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail Summary of Significant Accounting Policies - Additional Information (Detail) Details 46 false false R47.htm 1047 - Disclosure - Revenue Recognition - Summary of Revenues Disaggregated by Primary Geographic Markets (Detail) Sheet http://astro-med.com/role/RevenueRecognitionSummaryOfRevenuesDisaggregatedByPrimaryGeographicMarketsDetail Revenue Recognition - Summary of Revenues Disaggregated by Primary Geographic Markets (Detail) Details 47 false false R48.htm 1048 - Disclosure - Revenue Recognition - Summary of Revenues Disaggregated by Primary Product Type (Detail) Sheet http://astro-med.com/role/RevenueRecognitionSummaryOfRevenuesDisaggregatedByPrimaryProductTypeDetail Revenue Recognition - Summary of Revenues Disaggregated by Primary Product Type (Detail) Details 48 false false R49.htm 1049 - Disclosure - Revenue Recognition - Additional Information (Detail) Sheet http://astro-med.com/role/RevenueRecognitionAdditionalInformationDetail Revenue Recognition - Additional Information (Detail) Details 49 false false R50.htm 1050 - Disclosure - Intangible Assets - Fair Value of Acquired Identifiable Intangible Assets and Related Estimated Useful Lives (Detail) Sheet http://astro-med.com/role/IntangibleAssetsFairValueOfAcquiredIdentifiableIntangibleAssetsAndRelatedEstimatedUsefulLivesDetail Intangible Assets - Fair Value of Acquired Identifiable Intangible Assets and Related Estimated Useful Lives (Detail) Details 50 false false R51.htm 1051 - Disclosure - Intangible Assets - Additional Information (Detail) Sheet http://astro-med.com/role/IntangibleAssetsAdditionalInformationDetail Intangible Assets - Additional Information (Detail) Details 51 false false R52.htm 1052 - Disclosure - Intangible Assets - Summary of Estimated Amortization Expense (Detail) Sheet http://astro-med.com/role/IntangibleAssetsSummaryOfEstimatedAmortizationExpenseDetail Intangible Assets - Summary of Estimated Amortization Expense (Detail) Details 52 false false R53.htm 1053 - Disclosure - Inventories - Additional Information (Detail) Sheet http://astro-med.com/role/InventoriesAdditionalInformationDetail Inventories - Additional Information (Detail) Details 53 false false R54.htm 1054 - Disclosure - Inventories - Components of Inventories (Detail) Sheet http://astro-med.com/role/InventoriesComponentsOfInventoriesDetail Inventories - Components of Inventories (Detail) Details 54 false false R55.htm 1055 - Disclosure - Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) Sheet http://astro-med.com/role/PropertyPlantAndEquipmentSummaryOfPropertyPlantAndEquipmentDetail Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) Details 55 false false R56.htm 1056 - Disclosure - Property, Plant and Equipment - Additional Information (Detail) Sheet http://astro-med.com/role/PropertyPlantAndEquipmentAdditionalInformationDetail Property, Plant and Equipment - Additional Information (Detail) Details 56 false false R57.htm 1057 - Disclosure - Accrued Expenses - Summary of Accrued Expenses (Detail) Sheet http://astro-med.com/role/AccruedExpensesSummaryOfAccruedExpensesDetail Accrued Expenses - Summary of Accrued Expenses (Detail) Details 57 false false R58.htm 1058 - Disclosure - Long- Term Debt and Other Financing Arrangements - Schedule of Long Term Debt in the Accompanying Condensed Consolidated Balance Sheets (Detail) Sheet http://astro-med.com/role/LongTermDebtAndOtherFinancingArrangementsScheduleOfLongTermDebtInTheAccompanyingCondensedConsolidatedBalanceSheetsDetail Long- Term Debt and Other Financing Arrangements - Schedule of Long Term Debt in the Accompanying Condensed Consolidated Balance Sheets (Detail) Details 58 false false R59.htm 1059 - Disclosure - Long- Term Debt and Other Financing Arrangements - Schedule of Long Term Debt in the Accompanying Condensed Consolidated Balance Sheets (Parenthetical) (Detail) Sheet http://astro-med.com/role/LongTermDebtAndOtherFinancingArrangementsScheduleOfLongTermDebtInTheAccompanyingCondensedConsolidatedBalanceSheetsParentheticalDetail Long- Term Debt and Other Financing Arrangements - Schedule of Long Term Debt in the Accompanying Condensed Consolidated Balance Sheets (Parenthetical) (Detail) Details 59 false false R60.htm 1060 - Disclosure - Long- Term Debt and Other Financing Arrangements - Schedule of Required Principal Payments Remaining on Long Term Debt Outstanding (Detail) Sheet http://astro-med.com/role/LongTermDebtAndOtherFinancingArrangementsScheduleOfRequiredPrincipalPaymentsRemainingOnLongTermDebtOutstandingDetail Long- Term Debt and Other Financing Arrangements - Schedule of Required Principal Payments Remaining on Long Term Debt Outstanding (Detail) Details 60 false false R61.htm 1061 - Disclosure - Long- Term Debt and Other Financing Arrangements - Additional Information (Detail) Sheet http://astro-med.com/role/LongTermDebtAndOtherFinancingArrangementsAdditionalInformationDetail Long- Term Debt and Other Financing Arrangements - Additional Information (Detail) Details 61 false false R62.htm 1062 - Disclosure - Derivative Financial Instruments and Risk Management - Additional Information (Detail) Sheet http://astro-med.com/role/DerivativeFinancialInstrumentsAndRiskManagementAdditionalInformationDetail Derivative Financial Instruments and Risk Management - Additional Information (Detail) Details 62 false false R63.htm 1063 - Disclosure - Derivative Financial Instruments and Risk Management - Schedule of Impact of the Derivative Instruments in the Condensed Consolidated Financial Statements (Detail) Sheet http://astro-med.com/role/DerivativeFinancialInstrumentsAndRiskManagementScheduleOfImpactOfTheDerivativeInstrumentsInTheCondensedConsolidatedFinancialStatementsDetail Derivative Financial Instruments and Risk Management - Schedule of Impact of the Derivative Instruments in the Condensed Consolidated Financial Statements (Detail) Details 63 false false R64.htm 1064 - Disclosure - Royalty Obligation - Additional Information (Detail) Sheet http://astro-med.com/role/RoyaltyObligationAdditionalInformationDetail Royalty Obligation - Additional Information (Detail) Details 64 false false R65.htm 1065 - Disclosure - Leases - Additional Information (Detail) Sheet http://astro-med.com/role/LeasesAdditionalInformationDetail Leases - Additional Information (Detail) Details 65 false false R66.htm 1066 - Disclosure - Leases - Schedule Of Balance Sheet And Other Information Related To Operating Leases (Detail) Sheet http://astro-med.com/role/LeasesScheduleOfBalanceSheetAndOtherInformationRelatedToOperatingLeasesDetail Leases - Schedule Of Balance Sheet And Other Information Related To Operating Leases (Detail) Details 66 false false R67.htm 1067 - Disclosure - Leases - Lease Cost Information (Detail) Sheet http://astro-med.com/role/LeasesLeaseCostInformationDetail Leases - Lease Cost Information (Detail) Details 67 false false R68.htm 1068 - Disclosure - Leases - Maturities of lease liabilities (Detail) Sheet http://astro-med.com/role/LeasesMaturitiesOfLeaseLiabilitiesDetail Leases - Maturities of lease liabilities (Detail) Details 68 false false R69.htm 1069 - Disclosure - Leases - Supplemental cash flow information (Detail) Sheet http://astro-med.com/role/LeasesSupplementalCashFlowInformationDetail Leases - Supplemental cash flow information (Detail) Details 69 false false R70.htm 1070 - Disclosure - Accumulated Other Comprehensive Loss - Changes in Balance of Accumulated Other Comprehensive Loss (Detail) Sheet http://astro-med.com/role/AccumulatedOtherComprehensiveLossChangesInBalanceOfAccumulatedOtherComprehensiveLossDetail Accumulated Other Comprehensive Loss - Changes in Balance of Accumulated Other Comprehensive Loss (Detail) Details 70 false false R71.htm 1071 - Disclosure - Shareholders' Equity - Additional information (Detail) Sheet http://astro-med.com/role/ShareholdersEquityAdditionalInformationDetail Shareholders' Equity - Additional information (Detail) Details 71 false false R72.htm 1072 - Disclosure - Share-Based Compensation - Additional Information (Detail) Sheet http://astro-med.com/role/ShareBasedCompensationAdditionalInformationDetail Share-Based Compensation - Additional Information (Detail) Details 72 false false R73.htm 1073 - Disclosure - Share-Based Compensation - Share-Based Compensation Expense (Detail) Sheet http://astro-med.com/role/ShareBasedCompensationShareBasedCompensationExpenseDetail Share-Based Compensation - Share-Based Compensation Expense (Detail) Details 73 false false R74.htm 1074 - Disclosure - Share-Based Compensation - Aggregated Information Regarding Stock Options Granted (Detail) Sheet http://astro-med.com/role/ShareBasedCompensationAggregatedInformationRegardingStockOptionsGrantedDetail Share-Based Compensation - Aggregated Information Regarding Stock Options Granted (Detail) Details 74 false false R75.htm 1075 - Disclosure - Share-Based Compensation - Summary of Options Outstanding (Detail) Sheet http://astro-med.com/role/ShareBasedCompensationSummaryOfOptionsOutstandingDetail Share-Based Compensation - Summary of Options Outstanding (Detail) Details 75 false false R76.htm 1076 - Disclosure - Share-Based Compensation - Fair Value of Stock Options Granted (Detail) Sheet http://astro-med.com/role/ShareBasedCompensationFairValueOfStockOptionsGrantedDetail Share-Based Compensation - Fair Value of Stock Options Granted (Detail) Details 76 false false R77.htm 1077 - Disclosure - Share-Based Compensation - Aggregated Information Regarding RSUs and RSAs Granted (Detail) Sheet http://astro-med.com/role/ShareBasedCompensationAggregatedInformationRegardingRsusAndRsasGrantedDetail Share-Based Compensation - Aggregated Information Regarding RSUs and RSAs Granted (Detail) Details 77 false false R78.htm 1078 - Disclosure - Share-Based Compensation - Summarized Plan Activity (Detail) Sheet http://astro-med.com/role/ShareBasedCompensationSummarizedPlanActivityDetail Share-Based Compensation - Summarized Plan Activity (Detail) Details 78 false false R79.htm 1079 - Disclosure - Income Taxes - Tax Effects of Temporary Differences that gave Rise to Significant Portions of Deferred Tax Assets and Liabilities (Detail) Sheet http://astro-med.com/role/IncomeTaxesTaxEffectsOfTemporaryDifferencesThatGaveRiseToSignificantPortionsOfDeferredTaxAssetsAndLiabilitiesDetail Income Taxes - Tax Effects of Temporary Differences that gave Rise to Significant Portions of Deferred Tax Assets and Liabilities (Detail) Details 79 false false R80.htm 1080 - Disclosure - Income Taxes - Reconciliation Of The Provision For Income Taxes With The Amount Computed By Applying The Statutory Federal Income Tax Rate To The Income Before Income Tax Provision (Detail) Sheet http://astro-med.com/role/IncomeTaxesReconciliationOfTheProvisionForIncomeTaxesWithTheAmountComputedByApplyingTheStatutoryFederalIncomeTaxRateToTheIncomeBeforeIncomeTaxProvisionDetail Income Taxes - Reconciliation Of The Provision For Income Taxes With The Amount Computed By Applying The Statutory Federal Income Tax Rate To The Income Before Income Tax Provision (Detail) Details 80 false false R81.htm 1081 - Disclosure - Income Taxes - Components of Income before Income Taxes (Detail) Sheet http://astro-med.com/role/IncomeTaxesComponentsOfIncomeBeforeIncomeTaxesDetail Income Taxes - Components of Income before Income Taxes (Detail) Details 81 false false R82.htm 1082 - Disclosure - Income Taxes - Components of Provision for Income Taxes (Detail) Sheet http://astro-med.com/role/IncomeTaxesComponentsOfProvisionForIncomeTaxesDetail Income Taxes - Components of Provision for Income Taxes (Detail) Details 82 false false R83.htm 1083 - Disclosure - Income Taxes - Change in Balance of Unrecognized Tax Benefits, Excluding Interest and Penalties (Detail) Sheet http://astro-med.com/role/IncomeTaxesChangeInBalanceOfUnrecognizedTaxBenefitsExcludingInterestAndPenaltiesDetail Income Taxes - Change in Balance of Unrecognized Tax Benefits, Excluding Interest and Penalties (Detail) Details 83 false false R84.htm 1084 - Disclosure - Income Taxes - Additional Information (Detail) Sheet http://astro-med.com/role/IncomeTaxesAdditionalInformationDetail Income Taxes - Additional Information (Detail) Details 84 false false R85.htm 1085 - Disclosure - Nature of Operations, Segment Reporting and Geographical Information - Additional Information (Detail) Sheet http://astro-med.com/role/NatureOfOperationsSegmentReportingAndGeographicalInformationAdditionalInformationDetail Nature of Operations, Segment Reporting and Geographical Information - Additional Information (Detail) Details 85 false false R86.htm 1086 - Disclosure - Nature of Operations, Segment Reporting and Geographical Information - Net Sales and Segment Operating Profit for Each Reporting Segment (Detail) Sheet http://astro-med.com/role/NatureOfOperationsSegmentReportingAndGeographicalInformationNetSalesAndSegmentOperatingProfitForEachReportingSegmentDetail Nature of Operations, Segment Reporting and Geographical Information - Net Sales and Segment Operating Profit for Each Reporting Segment (Detail) Details 86 false false R87.htm 1087 - Disclosure - Nature of Operations, Segment Reporting and Geographical Information - Summary of Other Information by Segment (Detail) Sheet http://astro-med.com/role/NatureOfOperationsSegmentReportingAndGeographicalInformationSummaryOfOtherInformationBySegmentDetail Nature of Operations, Segment Reporting and Geographical Information - Summary of Other Information by Segment (Detail) Details 87 false false R88.htm 1088 - Disclosure - Nature of Operations, Segment Reporting and Geographical Information - Summary of Selected Financial Information by Geographic Area (Detail) Sheet http://astro-med.com/role/NatureOfOperationsSegmentReportingAndGeographicalInformationSummaryOfSelectedFinancialInformationByGeographicAreaDetail Nature of Operations, Segment Reporting and Geographical Information - Summary of Selected Financial Information by Geographic Area (Detail) Details 88 false false R89.htm 1089 - Disclosure - Employee Benefit Plans - Additional Information (Detail) Sheet http://astro-med.com/role/EmployeeBenefitPlansAdditionalInformationDetail Employee Benefit Plans - Additional Information (Detail) Details 89 false false R90.htm 1090 - Disclosure - Product Warranty Liability - Activity in Product Warranty Liability (Detail) Sheet http://astro-med.com/role/ProductWarrantyLiabilityActivityInProductWarrantyLiabilityDetail Product Warranty Liability - Activity in Product Warranty Liability (Detail) Details 90 false false R91.htm 1091 - Disclosure - Concentration of Risk - Additional Information (Detail) Sheet http://astro-med.com/role/ConcentrationOfRiskAdditionalInformationDetail Concentration of Risk - Additional Information (Detail) Details 91 false false R92.htm 1092 - Disclosure - Fair Value Measurements - Summary of Financial Assets and Liabilities Measured at Fair Value (Detail) Sheet http://astro-med.com/role/FairValueMeasurementsSummaryOfFinancialAssetsAndLiabilitiesMeasuredAtFairValueDetail Fair Value Measurements - Summary of Financial Assets and Liabilities Measured at Fair Value (Detail) Details 92 false false R93.htm 1093 - Disclosure - Fair Value Measurements - Additional Information (Detail) Sheet http://astro-med.com/role/FairValueMeasurementsAdditionalInformationDetail Fair Value Measurements - Additional Information (Detail) Details 93 false false R94.htm 1094 - Disclosure - Fair Value Measurements - Schedule of Company's Long-Term Debt Including the Current Portion Not Reflected in Financial Statements at Fair Value (Detail) Sheet http://astro-med.com/role/FairValueMeasurementsScheduleOfCompanysLongTermDebtIncludingTheCurrentPortionNotReflectedInFinancialStatementsAtFairValueDetail Fair Value Measurements - Schedule of Company's Long-Term Debt Including the Current Portion Not Reflected in Financial Statements at Fair Value (Detail) Details 94 false false R95.htm 1095 - Disclosure - Subsequent Event - Additional Information (Detail) Sheet http://astro-med.com/role/SubsequentEventAdditionalInformationDetail Subsequent Event - Additional Information (Detail) Details 95 false false R96.htm 1096 - Disclosure - Schedule II - Valuation and Qualifying Accounts and Reserves (Detail) Sheet http://astro-med.com/role/ScheduleIiValuationAndQualifyingAccountsAndReservesDetail Schedule II - Valuation and Qualifying Accounts and Reserves (Detail) Details http://astro-med.com/role/ScheduleIiValuationAndQualifyingAccountsAndReserves 96 false false All Reports Book All Reports alot-20200131.xml alot-20200131.xsd alot-20200131_cal.xml alot-20200131_def.xml alot-20200131_lab.xml alot-20200131_pre.xml http://xbrl.sec.gov/dei/2019-01-31 http://fasb.org/us-gaap/2019-01-31 http://fasb.org/srt/2019-01-31 http://xbrl.sec.gov/country/2017-01-31 true true