3.25.2 html 324 395 1 false 82 0 false 7 false false R1.htm 75000 - Document - Document And Entity Information Sheet http://www.genasys.com/20250630/taxonomy/role/statement-document-and-entity-information Document And Entity Information Cover 1 false false R2.htm 75010 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Current Period Unaudited) Sheet http://www.genasys.com/20250630/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsCurrentPeriodUnaudited CONDENSED CONSOLIDATED BALANCE SHEETS (Current Period Unaudited) Statements 2 false false R3.htm 75030 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Current Period Unaudited) (Parentheticals) Sheet http://www.genasys.com/20250630/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsCurrentPeriodUnauditedParentheticals CONDENSED CONSOLIDATED BALANCE SHEETS (Current Period Unaudited) (Parentheticals) Statements 3 false false R4.htm 75040 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) Sheet http://www.genasys.com/20250630/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) Statements 4 false false R5.htm 75050 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) Sheet http://www.genasys.com/20250630/taxonomy/role/StatementCondensedConsolidatedStatementsOfComprehensiveLossUnaudited CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) Statements 5 false false R6.htm 75060 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) Sheet http://www.genasys.com/20250630/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) Statements 6 false false R7.htm 995410 - Disclosure - Pay vs Performance Disclosure Sheet http://xbrl.sec.gov/ecd/role/PvpDisclosure Pay vs Performance Disclosure Notes 7 false false R8.htm 995445 - Disclosure - Insider Trading Arrangements Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements Insider Trading Arrangements Notes 8 false false R9.htm 995455 - Disclosure - Operations Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureOperations Operations Notes 9 false false R10.htm 995465 - Disclosure - Basis of Presentation and Significant Accounting Policies Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureBasisOfPresentationAndSignificantAccountingPolicies Basis of Presentation and Significant Accounting Policies Notes 10 false false R11.htm 995475 - Disclosure - Recent Accounting Pronouncements Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureRecentAccountingPronouncements Recent Accounting Pronouncements Notes 11 false false R12.htm 995485 - Disclosure - Business Combinations Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureBusinessCombinations Business Combinations Notes 12 false false R13.htm 995495 - Disclosure - Revenue Recognition Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureRevenueRecognition Revenue Recognition Notes 13 false false R14.htm 995505 - Disclosure - Fair Value Measurements Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureFairValueMeasurements Fair Value Measurements Notes 14 false false R15.htm 995515 - Disclosure - Inventories, Net Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureInventoriesNet Inventories, Net Notes 15 false false R16.htm 995525 - Disclosure - Property and Equipment, Net Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosurePropertyAndEquipmentNet Property and Equipment, Net Notes 16 false false R17.htm 995535 - Disclosure - Goodwill and Intangible Assets Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureGoodwillAndIntangibleAssets Goodwill and Intangible Assets Notes 17 false false R18.htm 995545 - Disclosure - Prepaid Expenses and Other Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosurePrepaidExpensesAndOther1 Prepaid Expenses and Other Notes 18 false false R19.htm 995555 - Disclosure - Accrued and Other Liabilities Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureAccruedAndOtherLiabilities1 Accrued and Other Liabilities Notes 19 false false R20.htm 995565 - Disclosure - Term Loans and Warrant Liabilities Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureTermLoansAndWarrantLiabilities1 Term Loans and Warrant Liabilities Notes 20 false false R21.htm 995575 - Disclosure - Leases Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureLeases1 Leases Notes 21 false false R22.htm 995585 - Disclosure - Income Taxes Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureIncomeTaxes Income Taxes Notes 22 false false R23.htm 995595 - Disclosure - Commitments and Contingencies Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureCommitmentsAndContingencies Commitments and Contingencies Notes 23 false false R24.htm 995605 - Disclosure - Share-Based Compensation Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureSharebasedCompensation1 Share-Based Compensation Notes 24 false false R25.htm 995615 - Disclosure - Stockholders' Equity Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureStockholdersEquity Stockholders' Equity Notes 25 false false R26.htm 995625 - Disclosure - Net Loss Per Share Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureNetLossPerShare Net Loss Per Share Notes 26 false false R27.htm 995635 - Disclosure - Segment Information Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureSegmentInformation Segment Information Notes 27 false false R28.htm 995645 - Disclosure - Major Customers, Suppliers and Related Information Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureMajorCustomersSuppliersAndRelatedInformation Major Customers, Suppliers and Related Information Notes 28 false false R29.htm 995665 - Disclosure - Basis of Presentation and Significant Accounting Policies (Policies) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureBasisOfPresentationAndSignificantAccountingPoliciesPolicies Basis of Presentation and Significant Accounting Policies (Policies) Policies http://www.genasys.com/20250630/taxonomy/role/DisclosureBasisOfPresentationAndSignificantAccountingPolicies 29 false false R30.htm 995675 - Disclosure - Business Combinations (Tables) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureBusinessCombinationsTables Business Combinations (Tables) Tables http://www.genasys.com/20250630/taxonomy/role/DisclosureBusinessCombinations 30 false false R31.htm 995685 - Disclosure - Revenue Recognition (Tables) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureRevenueRecognitionTables Revenue Recognition (Tables) Tables http://www.genasys.com/20250630/taxonomy/role/DisclosureRevenueRecognition 31 false false R32.htm 995695 - Disclosure - Fair Value Measurements (Tables) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureFairValueMeasurementsTables Fair Value Measurements (Tables) Tables http://www.genasys.com/20250630/taxonomy/role/DisclosureFairValueMeasurements 32 false false R33.htm 995705 - Disclosure - Inventories, Net (Tables) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureInventoriesNetTables Inventories, Net (Tables) Tables http://www.genasys.com/20250630/taxonomy/role/DisclosureInventoriesNet 33 false false R34.htm 995715 - Disclosure - Property and Equipment, Net (Tables) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosurePropertyAndEquipmentNetTables Property and Equipment, Net (Tables) Tables http://www.genasys.com/20250630/taxonomy/role/DisclosurePropertyAndEquipmentNet 34 false false R35.htm 995725 - Disclosure - Goodwill and Intangible Assets (Tables) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsTables Goodwill and Intangible Assets (Tables) Tables http://www.genasys.com/20250630/taxonomy/role/DisclosureGoodwillAndIntangibleAssets 35 false false R36.htm 995735 - Disclosure - Prepaid Expenses and Other (Tables) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosurePrepaidExpensesAndOtherTables Prepaid Expenses and Other (Tables) Tables http://www.genasys.com/20250630/taxonomy/role/DisclosurePrepaidExpensesAndOther1 36 false false R37.htm 995745 - Disclosure - Accrued and Other Liabilities (Tables) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureAccruedAndOtherLiabilitiesTables Accrued and Other Liabilities (Tables) Tables http://www.genasys.com/20250630/taxonomy/role/DisclosureAccruedAndOtherLiabilities1 37 false false R38.htm 995755 - Disclosure - Term Loans and Warrant Liabilities (Tables) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureTermLoansAndWarrantLiabilitiesTables Term Loans and Warrant Liabilities (Tables) Tables http://www.genasys.com/20250630/taxonomy/role/DisclosureTermLoansAndWarrantLiabilities1 38 false false R39.htm 995765 - Disclosure - Leases (Tables) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureLeasesTables Leases (Tables) Tables http://www.genasys.com/20250630/taxonomy/role/DisclosureLeases1 39 false false R40.htm 995775 - Disclosure - Share-Based Compensation (Tables) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureSharebasedCompensationTables Share-Based Compensation (Tables) Tables http://www.genasys.com/20250630/taxonomy/role/DisclosureSharebasedCompensation1 40 false false R41.htm 995785 - Disclosure - Stockholders' Equity (Tables) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureStockholdersEquityTables Stockholders' Equity (Tables) Tables http://www.genasys.com/20250630/taxonomy/role/DisclosureStockholdersEquity 41 false false R42.htm 995795 - Disclosure - Net Loss Per Share (Tables) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureNetLossPerShareTables Net Loss Per Share (Tables) Tables http://www.genasys.com/20250630/taxonomy/role/DisclosureNetLossPerShare 42 false false R43.htm 995805 - Disclosure - Segment Information (Tables) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureSegmentInformationTables Segment Information (Tables) Tables http://www.genasys.com/20250630/taxonomy/role/DisclosureSegmentInformation 43 false false R44.htm 995815 - Disclosure - Major Customers, Suppliers and Related Information (Tables) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureMajorCustomersSuppliersAndRelatedInformationTables Major Customers, Suppliers and Related Information (Tables) Tables http://www.genasys.com/20250630/taxonomy/role/DisclosureMajorCustomersSuppliersAndRelatedInformation 44 false false R45.htm 995825 - Disclosure - Basis of Presentation and Significant Accounting Policies - Additional information (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureBasisOfPresentationAndSignificantAccountingPoliciesAdditionalInformationDetails Basis of Presentation and Significant Accounting Policies - Additional information (Details) Details 45 false false R46.htm 995835 - Disclosure - Business Combinations - Additional Information (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureBusinessCombinationsAdditionalInformationDetails Business Combinations - Additional Information (Details) Details 46 false false R47.htm 995845 - Disclosure - Business Combinations - Schedule of Consideration (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureBusinessCombinationsScheduleOfConsiderationDetails Business Combinations - Schedule of Consideration (Details) Details 47 false false R48.htm 995855 - Disclosure - Business Combinations - Schedule of Assets Acquired and Liabilities Assumed (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureBusinessCombinationsScheduleOfAssetsAcquiredAndLiabilitiesAssumedDetails Business Combinations - Schedule of Assets Acquired and Liabilities Assumed (Details) Details 48 false false R49.htm 995865 - Disclosure - Business Combinations - Schedule of Identifiable Intangible Assets (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureBusinessCombinationsScheduleOfIdentifiableIntangibleAssetsDetails Business Combinations - Schedule of Identifiable Intangible Assets (Details) Details 49 false false R50.htm 995875 - Disclosure - Revenue Recognition - Additional Information (Details 1) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureRevenueRecognitionAdditionalInformationDetails1 Revenue Recognition - Additional Information (Details 1) Details 50 false false R51.htm 995885 - Disclosure - Revenue Recognition - Additional Information (Details 2) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureRevenueRecognitionAdditionalInformationDetails2 Revenue Recognition - Additional Information (Details 2) Details 51 false false R52.htm 995895 - Disclosure - Revenue Recognition - Schedule of Contract Asset and Contract Liabilities (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureRevenueRecognitionScheduleOfContractAssetAndContractLiabilitiesDetails Revenue Recognition - Schedule of Contract Asset and Contract Liabilities (Details) Details 52 false false R53.htm 995905 - Disclosure - Fair Value Measurements - Additional Information (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureFairValueMeasurementsAdditionalInformationDetails Fair Value Measurements - Additional Information (Details) Details 53 false false R54.htm 995915 - Disclosure - Fair Value Measurements - Fair Value by Major Security Type (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureFairValueMeasurementsFairValueByMajorSecurityTypeDetails Fair Value Measurements - Fair Value by Major Security Type (Details) Details 54 false false R55.htm 995925 - Disclosure - Fair Value Measurements - Holdback Liability Measured at Fair Value on a Non-recurring Basis (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureFairValueMeasurementsHoldbackLiabilityMeasuredAtFairValueOnANonrecurringBasisDetails Fair Value Measurements - Holdback Liability Measured at Fair Value on a Non-recurring Basis (Details) Details 55 false false R56.htm 995935 - Disclosure - Inventories, Net - Schedule of Inventory (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureInventoriesNetScheduleOfInventoryDetails Inventories, Net - Schedule of Inventory (Details) Details 56 false false R57.htm 995945 - Disclosure - Property and Equipment, Net - Additional Information (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosurePropertyAndEquipmentNetAdditionalInformationDetails Property and Equipment, Net - Additional Information (Details) Details 57 false false R58.htm 995955 - Disclosure - Property and Equipment, Net - Schedule of Property and Equipment (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosurePropertyAndEquipmentNetScheduleOfPropertyAndEquipmentDetails Property and Equipment, Net - Schedule of Property and Equipment (Details) Details 58 false false R59.htm 995965 - Disclosure - Goodwill and Intangible Assets - Additional Information (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsAdditionalInformationDetails Goodwill and Intangible Assets - Additional Information (Details) Details 59 false false R60.htm 995975 - Disclosure - Goodwill and Intangible Assets - Changes in Carrying Amount of Goodwill (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsChangesInCarryingAmountOfGoodwillDetails Goodwill and Intangible Assets - Changes in Carrying Amount of Goodwill (Details) Details 60 false false R61.htm 995985 - Disclosure - Goodwill and Intangible Assets - Summary of Intangible Assets (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsSummaryOfIntangibleAssetsDetails Goodwill and Intangible Assets - Summary of Intangible Assets (Details) Details 61 false false R62.htm 995995 - Disclosure - Goodwill and Intangible Assets - Estimated Future Amortization Expense (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsEstimatedFutureAmortizationExpenseDetails Goodwill and Intangible Assets - Estimated Future Amortization Expense (Details) Details 62 false false R63.htm 996005 - Disclosure - Prepaid Expenses and Other - Additional Information (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosurePrepaidExpensesAndOtherAdditionalInformationDetails Prepaid Expenses and Other - Additional Information (Details) Details 63 false false R64.htm 996015 - Disclosure - Prepaid Expenses and Other - Summary of Prepaid Expenses and Others (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosurePrepaidExpensesAndOtherSummaryOfPrepaidExpensesAndOthersDetails Prepaid Expenses and Other - Summary of Prepaid Expenses and Others (Details) Details 64 false false R65.htm 996025 - Disclosure - Accrued and Other Liabilities - Additional information (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureAccruedAndOtherLiabilitiesAdditionalInformationDetails Accrued and Other Liabilities - Additional information (Details) Details 65 false false R66.htm 996035 - Disclosure - Accrued and Other Liabilities - Summary of Accrued Liabilities (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureAccruedAndOtherLiabilitiesSummaryOfAccruedLiabilitiesDetails Accrued and Other Liabilities - Summary of Accrued Liabilities (Details) Details 66 false false R67.htm 996045 - Disclosure - Accrued and Other Liabilities - Summary of Changes in Warranty Reserve (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureAccruedAndOtherLiabilitiesSummaryOfChangesInWarrantyReserveDetails Accrued and Other Liabilities - Summary of Changes in Warranty Reserve (Details) Details 67 false false R68.htm 996055 - Disclosure - Term Loans and Warrant Liabilities - Additional Information (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureTermLoansAndWarrantLiabilitiesAdditionalInformationDetails Term Loans and Warrant Liabilities - Additional Information (Details) Details 68 false false R69.htm 996065 - Disclosure - Term Loans and Warrant Liabilities - Summary of Changes in Fair Value of Term Loan And First Amendment Term Loan Level 3 (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureTermLoansAndWarrantLiabilitiesSummaryOfChangesInFairValueOfTermLoanAndFirstAmendmentTermLoanLevel3Details Term Loans and Warrant Liabilities - Summary of Changes in Fair Value of Term Loan And First Amendment Term Loan Level 3 (Details) Details 69 false false R70.htm 996075 - Disclosure - Term Loans and Warrant Liabilities - Summary of Fair Value Assumptions Applied in Determining Initial Fair Value and Subsequent Fair Value of Warrant Liabilities (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureTermLoansAndWarrantLiabilitiesSummaryOfFairValueAssumptionsAppliedInDeterminingInitialFairValueAndSubsequentFairValueOfWarrant Term Loans and Warrant Liabilities - Summary of Fair Value Assumptions Applied in Determining Initial Fair Value and Subsequent Fair Value of Warrant Liabilities (Details) Details 70 false false R71.htm 996085 - Disclosure - Term Loans and Warrant Liabilities - Summary of Changes in Fair Value of Warrant Liabilities Level 3 (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureTermLoansAndWarrantLiabilitiesSummaryOfChangesInFairValueOfWarrantLiabilitiesLevel3Details Term Loans and Warrant Liabilities - Summary of Changes in Fair Value of Warrant Liabilities Level 3 (Details) Details 71 false false R72.htm 996095 - Disclosure - Leases - Summary of Operating ROU Assets and Liabilities (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureLeasesSummaryOfOperatingRouAssetsAndLiabilitiesDetails Leases - Summary of Operating ROU Assets and Liabilities (Details) Details 72 false false R73.htm 996105 - Disclosure - Leases - Additional Information (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureLeasesAdditionalInformationDetails Leases - Additional Information (Details) Details 73 false false R74.htm 996115 - Disclosure - Leases - Summary of Maturities of Operating Lease Liabilities (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureLeasesSummaryOfMaturitiesOfOperatingLeaseLiabilitiesDetails Leases - Summary of Maturities of Operating Lease Liabilities (Details) Details 74 false false R75.htm 996125 - Disclosure - Income Taxes - Additional Information (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureIncomeTaxesAdditionalInformationDetails Income Taxes - Additional Information (Details) Details 75 false false R76.htm 996135 - Disclosure - Share-Based Compensation - Additional Information (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureSharebasedCompensationAdditionalInformationDetails Share-Based Compensation - Additional Information (Details) Details 76 false false R77.htm 996145 - Disclosure - Share-Based Compensation - Summary of Stock Option Activity (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureSharebasedCompensationSummaryOfStockOptionActivityDetails Share-Based Compensation - Summary of Stock Option Activity (Details) Details 77 false false R78.htm 996155 - Disclosure - Share-Based Compensation - Summary of Stock Options Outstanding (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureSharebasedCompensationSummaryOfStockOptionsOutstandingDetails Share-Based Compensation - Summary of Stock Options Outstanding (Details) Details 78 false false R79.htm 996165 - Disclosure - Share-Based Compensation - Summary of Weighted-Average Assumptions (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureSharebasedCompensationSummaryOfWeightedaverageAssumptionsDetails Share-Based Compensation - Summary of Weighted-Average Assumptions (Details) Details 79 false false R80.htm 996175 - Disclosure - Share-Based Compensation - Summary of Company's RSU Activity (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureSharebasedCompensationSummaryOfCompanysRsuActivityDetails Share-Based Compensation - Summary of Company's RSU Activity (Details) Details 80 false false R81.htm 996185 - Disclosure - Share-Based Compensation - Summary of Share-based Compensation Expense (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureSharebasedCompensationSummaryOfSharebasedCompensationExpenseDetails Share-Based Compensation - Summary of Share-based Compensation Expense (Details) Details 81 false false R82.htm 996195 - Disclosure - Stockholders' Equity - Summary of Changes in Stockholders' Equity (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureStockholdersEquitySummaryOfChangesInStockholdersEquityDetails Stockholders' Equity - Summary of Changes in Stockholders' Equity (Details) Details 82 false false R83.htm 996205 - Disclosure - Stockholders' Equity - Additional Information (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureStockholdersEquityAdditionalInformationDetails Stockholders' Equity - Additional Information (Details) Details 83 false false R84.htm 996215 - Disclosure - Net Loss Per Share - Schedule of Basic and Diluted Loss Per Share (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureNetLossPerShareScheduleOfBasicAndDilutedLossPerShareDetails Net Loss Per Share - Schedule of Basic and Diluted Loss Per Share (Details) Details 84 false false R85.htm 996225 - Disclosure - Segment Information - Additional Information (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureSegmentInformationAdditionalInformationDetails Segment Information - Additional Information (Details) Details 85 false false R86.htm 996235 - Disclosure - Segment Information - Schedule of Segment Reporting Information by Segment (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureSegmentInformationScheduleOfSegmentReportingInformationBySegmentDetails Segment Information - Schedule of Segment Reporting Information by Segment (Details) Details 86 false false R87.htm 996245 - Disclosure - Segment Information - Schedule of Segment Reporting Information by Segment (Long-Lived Assets) (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureSegmentInformationScheduleOfSegmentReportingInformationBySegmentLonglivedAssetsDetails Segment Information - Schedule of Segment Reporting Information by Segment (Long-Lived Assets) (Details) Details 87 false false R88.htm 996255 - Disclosure - Major Customers, Suppliers and Related Information - Additional Information (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureMajorCustomersSuppliersAndRelatedInformationAdditionalInformationDetails Major Customers, Suppliers and Related Information - Additional Information (Details) Details 88 false false R89.htm 996265 - Disclosure - Major Customers, Suppliers and Related Information - Schedule of Revenues by Geographic Region (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureMajorCustomersSuppliersAndRelatedInformationScheduleOfRevenuesByGeographicRegionDetails Major Customers, Suppliers and Related Information - Schedule of Revenues by Geographic Region (Details) Details 89 false false R90.htm 996275 - Disclosure - Major Customers, Suppliers and Related Information - Schedule of Long Lived Assets by Geographic Region (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureMajorCustomersSuppliersAndRelatedInformationScheduleOfLongLivedAssetsByGeographicRegionDetails Major Customers, Suppliers and Related Information - Schedule of Long Lived Assets by Geographic Region (Details) Details 90 false false R91.htm 996285 - Disclosure - Subsequent Event - Additional Information (Details) Sheet http://www.genasys.com/20250630/taxonomy/role/DisclosureSubsequentEventAdditionalInformationDetails Subsequent Event - Additional Information (Details) Details 91 false false All Reports Book All Reports gnss-20250630.htm gnss-20250630.xsd img38272234_0.jpg http://fasb.org/srt/2024 http://fasb.org/us-gaap/2024 http://xbrl.sec.gov/dei/2024 http://xbrl.sec.gov/ecd/2024 false false