3.26.1 html 185 310 1 true 63 0 false 7 false false R1.htm 000 - Document - Document And Entity Information Sheet http://nextnav.com/role/DocumentAndEntityInformation Document And Entity Information Cover 1 false false R2.htm 001 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS??(unaudited) Sheet http://nextnav.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSunaudited CONDENSED CONSOLIDATED BALANCE SHEETS??(unaudited) Statements 2 false false R3.htm 002 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS??(unaudited) (Parentheticals) Sheet http://nextnav.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSunauditedParentheticals CONDENSED CONSOLIDATED BALANCE SHEETS??(unaudited) (Parentheticals) Statements 3 false false R4.htm 003 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (UNAUDITED) Sheet http://nextnav.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSSUNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (UNAUDITED) Statements 4 false false R5.htm 004 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED) Sheet http://nextnav.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCHANGESINSTOCKHOLDERSEQUITYUNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED) Statements 5 false false R6.htm 005 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) Sheet http://nextnav.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSUNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) Statements 6 false false R7.htm 006 - Disclosure - Organization and Business Sheet http://nextnav.com/role/OrganizationandBusiness Organization and Business Notes 7 false false R8.htm 007 - Disclosure - Summary of Significant Accounting Policies Sheet http://nextnav.com/role/nn_r_SummaryofSignificantAccountingPolicies Summary of Significant Accounting Policies Notes 8 false false R9.htm 0071 - Disclosure - Accrued Expenses and Other Current Liabilities Sheet http://nextnav.com/role/AccruedExpensesandOtherCurrentLiabilities Accrued Expenses and Other Current Liabilities Notes 9 false false R10.htm 008 - Disclosure - Intangibles Sheet http://nextnav.com/role/Intangibles Intangibles Notes 10 false false R11.htm 009 - Disclosure - Asset Purchase Agreement Sheet http://nextnav.com/role/AssetPurchaseAgreement Asset Purchase Agreement Notes 11 false false R12.htm 010 - Disclosure - Equity Method Investment Sheet http://nextnav.com/role/EquityMethodInvestment Equity Method Investment Notes 12 false false R13.htm 011 - Disclosure - Fair Value Sheet http://nextnav.com/role/FairValue Fair Value Notes 13 false false R14.htm 012 - Disclosure - Long term debt, net Sheet http://nextnav.com/role/Longtermdebtnet Long term debt, net Notes 14 false false R15.htm 0121 - Disclosure - Warrants and Warrant Liability Sheet http://nextnav.com/role/WarrantsandWarrantLiability Warrants and Warrant Liability Notes 15 false false R16.htm 013 - Disclosure - Common Stock Sheet http://nextnav.com/role/CommonStock Common Stock Notes 16 false false R17.htm 014 - Disclosure - Commitments and Contingencies Sheet http://nextnav.com/role/CommitmentsandContingencies Commitments and Contingencies Notes 17 false false R18.htm 015 - Disclosure - Income Taxes Sheet http://nextnav.com/role/IncomeTaxes Income Taxes Notes 18 false false R19.htm 016 - Disclosure - Segments Sheet http://nextnav.com/role/Segments Segments Notes 19 false false R20.htm 017 - Disclosure - Subsequent Events Sheet http://nextnav.com/role/SubsequentEvents Subsequent Events Notes 20 false false R21.htm 995445 - Disclosure - Insider Trading Arrangements Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements Insider Trading Arrangements Notes 21 false false R22.htm 9954471 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://nextnav.com/role/SummaryofSignificantAccountingPoliciesPolicies Summary of Significant Accounting Policies (Policies) Policies http://nextnav.com/role/nn_r_SummaryofSignificantAccountingPolicies 22 false false R23.htm 9954472 - Disclosure - Summary of Significant Accounting Policies (Tables) Sheet http://nextnav.com/role/SummaryofSignificantAccountingPoliciesTables Summary of Significant Accounting Policies (Tables) Tables http://nextnav.com/role/nn_r_SummaryofSignificantAccountingPolicies 23 false false R24.htm 9954473 - Disclosure - Accrued Expenses and Other Current Liabilities (Tables) Sheet http://nextnav.com/role/AccruedExpensesandOtherCurrentLiabilitiesTables Accrued Expenses and Other Current Liabilities (Tables) Tables http://nextnav.com/role/AccruedExpensesandOtherCurrentLiabilities 24 false false R25.htm 9954474 - Disclosure - Intangibles (Tables) Sheet http://nextnav.com/role/IntangiblesTables Intangibles (Tables) Tables http://nextnav.com/role/Intangibles 25 false false R26.htm 9954475 - Disclosure - Fair Value (Tables) Sheet http://nextnav.com/role/FairValueTables Fair Value (Tables) Tables http://nextnav.com/role/FairValue 26 false false R27.htm 99544750 - Disclosure - Long term debt, net (Tables) Sheet http://nextnav.com/role/LongtermdebtnetTables Long term debt, net (Tables) Tables http://nextnav.com/role/Longtermdebtnet 27 false false R28.htm 99544751 - Disclosure - Segments (Tables) Sheet http://nextnav.com/role/SegmentsTables Segments (Tables) Tables http://nextnav.com/role/Segments 28 false false R29.htm 9954477 - Disclosure - Organization and Business (Details) Sheet http://nextnav.com/role/OrganizationandBusinessDetails Organization and Business (Details) Details http://nextnav.com/role/OrganizationandBusiness 29 false false R30.htm 9954478 - Disclosure - Summary of Significant Accounting Policies (Details) Sheet http://nextnav.com/role/nn_r_SummaryofSignificantAccountingPoliciesDetails Summary of Significant Accounting Policies (Details) Details http://nextnav.com/role/SummaryofSignificantAccountingPoliciesTables 30 false false R31.htm 9954479 - Disclosure - Summary of Significant Accounting Policies (Details) - Schedule of company's revenue disaggregated by category and source Sheet http://nextnav.com/role/SummaryofSignificantAccountingPoliciesDetailsScheduleofcompanysrevenuedisaggregatedbycategoryandsource Summary of Significant Accounting Policies (Details) - Schedule of company's revenue disaggregated by category and source Details http://nextnav.com/role/SummaryofSignificantAccountingPoliciesTables 31 false false R32.htm 9954480 - Disclosure - Summary of Significant Accounting Policies (Details) - Schedule of stock-based compensation included in cost of goods sold, research and development, and selling, general and administrative expenses Sheet http://nextnav.com/role/SummaryofSignificantAccountingPoliciesDetailsScheduleofstockbasedcompensationincludedincostofgoodssoldresearchanddevelopmentandsellinggeneralandadministrativeexpenses Summary of Significant Accounting Policies (Details) - Schedule of stock-based compensation included in cost of goods sold, research and development, and selling, general and administrative expenses Details http://nextnav.com/role/SummaryofSignificantAccountingPoliciesTables 32 false false R33.htm 9954481 - Disclosure - Summary of Significant Accounting Policies (Details) - Schedule of diluted weighted average shares Sheet http://nextnav.com/role/SummaryofSignificantAccountingPoliciesDetailsScheduleofdilutedweightedaverageshares Summary of Significant Accounting Policies (Details) - Schedule of diluted weighted average shares Details http://nextnav.com/role/SummaryofSignificantAccountingPoliciesTables 33 false false R34.htm 9954482 - Disclosure - Summary of Significant Accounting Policies (Details) - Schedule of anti-dilutive unvested restricted stock units Sheet http://nextnav.com/role/SummaryofSignificantAccountingPoliciesDetailsScheduleofantidilutiveunvestedrestrictedstockunits Summary of Significant Accounting Policies (Details) - Schedule of anti-dilutive unvested restricted stock units Details http://nextnav.com/role/SummaryofSignificantAccountingPoliciesTables 34 false false R35.htm 99544821 - Disclosure - Summary of Significant Accounting Policies (Details) - Schedule of depreciation using the straight-line method over the estimated useful lives of the assets Sheet http://nextnav.com/role/SummaryofSignificantAccountingPoliciesDetailsScheduleofdepreciationusingthestraightlinemethodovertheestimatedusefullivesoftheassets Summary of Significant Accounting Policies (Details) - Schedule of depreciation using the straight-line method over the estimated useful lives of the assets Details http://nextnav.com/role/SummaryofSignificantAccountingPoliciesTables 35 false false R36.htm 9954483 - Disclosure - Summary of Significant Accounting Policies (Details) - Schedule of goodwill activities Sheet http://nextnav.com/role/SummaryofSignificantAccountingPoliciesDetailsScheduleofgoodwillactivities Summary of Significant Accounting Policies (Details) - Schedule of goodwill activities Details http://nextnav.com/role/SummaryofSignificantAccountingPoliciesTables 36 false false R37.htm 9954484 - Disclosure - Accrued Expenses and Other Current Liabilities (Details) - Schedule of accrued expenses and other current liabilities Sheet http://nextnav.com/role/AccruedExpensesandOtherCurrentLiabilitiesDetailsScheduleofaccruedexpensesandothercurrentliabilities Accrued Expenses and Other Current Liabilities (Details) - Schedule of accrued expenses and other current liabilities Details http://nextnav.com/role/AccruedExpensesandOtherCurrentLiabilitiesTables 37 false false R38.htm 9954485 - Disclosure - Intangibles (Details) Sheet http://nextnav.com/role/IntangiblesDetails Intangibles (Details) Details http://nextnav.com/role/IntangiblesTables 38 false false R39.htm 9954486 - Disclosure - Intangibles (Details) - Schedule of Intangible assets Sheet http://nextnav.com/role/IntangiblesDetailsScheduleofIntangibleassets Intangibles (Details) - Schedule of Intangible assets Details http://nextnav.com/role/IntangiblesTables 39 false false R40.htm 9954487 - Disclosure - Intangibles (Details) - Schedule of future amortization Sheet http://nextnav.com/role/IntangiblesDetailsScheduleoffutureamortization Intangibles (Details) - Schedule of future amortization Details http://nextnav.com/role/IntangiblesTables 40 false false R41.htm 9954488 - Disclosure - Asset Purchase Agreement (Details) Sheet http://nextnav.com/role/AssetPurchaseAgreementDetails Asset Purchase Agreement (Details) Details http://nextnav.com/role/AssetPurchaseAgreement 41 false false R42.htm 9954489 - Disclosure - Equity Method Investment (Details) Sheet http://nextnav.com/role/EquityMethodInvestmentDetails Equity Method Investment (Details) Details http://nextnav.com/role/EquityMethodInvestment 42 false false R43.htm 9954490 - Disclosure - Fair Value (Details) - Schedule of financial assets and liabilities measured at fair value Sheet http://nextnav.com/role/FairValueDetailsScheduleoffinancialassetsandliabilitiesmeasuredatfairvalue Fair Value (Details) - Schedule of financial assets and liabilities measured at fair value Details http://nextnav.com/role/FairValueTables 43 false false R44.htm 9954491 - Disclosure - Fair Value (Details) - Schedule of fair value analysis of warrants, valuation assumptions Sheet http://nextnav.com/role/FairValueDetailsScheduleoffairvalueanalysisofwarrantsvaluationassumptions Fair Value (Details) - Schedule of fair value analysis of warrants, valuation assumptions Details http://nextnav.com/role/FairValueTables 44 false false R45.htm 9954492 - Disclosure - Fair Value (Details) - Schedule of fair value analysis of conversion option derivative liability, valuation assumptions Sheet http://nextnav.com/role/FairValueDetailsScheduleoffairvalueanalysisofconversionoptionderivativeliabilityvaluationassumptions Fair Value (Details) - Schedule of fair value analysis of conversion option derivative liability, valuation assumptions Details http://nextnav.com/role/FairValueTables 45 false false R46.htm 99544921 - Disclosure - Fair Value (Details) - Schedule of liabilities measured at fair value Sheet http://nextnav.com/role/FairValueDetailsScheduleofliabilitiesmeasuredatfairvalue Fair Value (Details) - Schedule of liabilities measured at fair value Details http://nextnav.com/role/FairValueTables 46 false false R47.htm 99544922 - Disclosure - Fair Value - Narrative (Details) Sheet http://nextnav.com/role/FairValueNarrativeDetails Fair Value - Narrative (Details) Details 47 false false R48.htm 9954493 - Disclosure - Long term debt, net - Narrative 1 (Details) Sheet http://nextnav.com/role/LongtermdebtnetNarrative1Details Long term debt, net - Narrative 1 (Details) Details 48 false false R49.htm 99544931 - Disclosure - Long term debt, net - Narrative 2 (Details) Sheet http://nextnav.com/role/LongtermdebtnetNarrative2Details Long term debt, net - Narrative 2 (Details) Details 49 false false R50.htm 99544932 - Disclosure - Long term debt, net - Schedule of net interest expense (Details) Sheet http://nextnav.com/role/LongtermdebtnetScheduleofnetinterestexpenseDetails Long term debt, net - Schedule of net interest expense (Details) Details 50 false false R51.htm 99544933 - Disclosure - Long term debt, net - Narrative 3 (Details) Sheet http://nextnav.com/role/LongtermdebtnetNarrative3Details Long term debt, net - Narrative 3 (Details) Details 51 false false R52.htm 9954494 - Disclosure - Warrants and Warrant Liability (Details) Sheet http://nextnav.com/role/WarrantsandWarrantLiabilityDetails Warrants and Warrant Liability (Details) Details http://nextnav.com/role/WarrantsandWarrantLiability 52 false false R53.htm 9954495 - Disclosure - Common Stock (Details) Sheet http://nextnav.com/role/CommonStockDetails Common Stock (Details) Details http://nextnav.com/role/CommonStock 53 false false R54.htm 9954496 - Disclosure - Income Taxes- (Details) Sheet http://nextnav.com/role/IncomeTaxesDetails Income Taxes- (Details) Details http://nextnav.com/role/IncomeTaxes 54 false false R55.htm 99544961 - Disclosure - Segments - Reconciliation of total segment net loss to total consolidated net loss (Details) Sheet http://nextnav.com/role/SegmentsReconciliationoftotalsegmentnetlosstototalconsolidatednetlossDetails Segments - Reconciliation of total segment net loss to total consolidated net loss (Details) Details 55 false false R56.htm 99544962 - Disclosure - Segments - Narrative (Details) Sheet http://nextnav.com/role/SegmentsNarrativeDetails Segments - Narrative (Details) Details 56 false false All Reports Book All Reports nn-20260331.htm nn-20260331.xsd nn-20260331_cal.xml nn-20260331_def.xml nn-20260331_lab.xml nn-20260331_pre.xml http://fasb.org/us-gaap/2025 http://xbrl.sec.gov/dei/2025 http://xbrl.sec.gov/ecd/2025 true true