3.26.1 html 115 220 1 false 45 0 false 7 false false R1.htm 0000001 - Document - Cover Sheet http://intellicheck.com/role/Cover Cover Cover 1 false false R2.htm 9952151 - Statement - CONDENSED BALANCE SHEETS Sheet http://intellicheck.com/role/CONDENSEDBALANCESHEETS CONDENSED BALANCE SHEETS Statements 2 false false R3.htm 9952152 - Statement - CONDENSED BALANCE SHEETS (Parenthetical) Sheet http://intellicheck.com/role/CONDENSEDBALANCESHEETSParenthetical CONDENSED BALANCE SHEETS (Parenthetical) Statements 3 false false R4.htm 9952153 - Statement - CONDENSED STATEMENTS OF OPERATIONS Sheet http://intellicheck.com/role/CONDENSEDSTATEMENTSOFOPERATIONS CONDENSED STATEMENTS OF OPERATIONS Statements 4 false false R5.htm 9952154 - Statement - CONDENSED STATEMENTS OF STOCKHOLDERS' EQUITY Sheet http://intellicheck.com/role/CONDENSEDSTATEMENTSOFSTOCKHOLDERSEQUITY CONDENSED STATEMENTS OF STOCKHOLDERS' EQUITY Statements 5 false false R6.htm 9952155 - Statement - CONDENSED STATEMENTS OF CASH FLOWS Sheet http://intellicheck.com/role/CONDENSEDSTATEMENTSOFCASHFLOWS CONDENSED STATEMENTS OF CASH FLOWS Statements 6 false false R7.htm 9952156 - Disclosure - NATURE OF BUSINESS Sheet http://intellicheck.com/role/NATUREOFBUSINESS NATURE OF BUSINESS Notes 7 false false R8.htm 9952157 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES Sheet http://intellicheck.com/role/SIGNIFICANTACCOUNTINGPOLICIES SIGNIFICANT ACCOUNTING POLICIES Notes 8 false false R9.htm 9952158 - Disclosure - CASH EQUIVALENTS Sheet http://intellicheck.com/role/CASHEQUIVALENTS CASH EQUIVALENTS Notes 9 false false R10.htm 9952159 - Disclosure - PROPERTY AND EQUIPMENT, NET Sheet http://intellicheck.com/role/PROPERTYANDEQUIPMENTNET PROPERTY AND EQUIPMENT, NET Notes 10 false false R11.htm 9952160 - Disclosure - INTANGIBLE ASSETS, NET Sheet http://intellicheck.com/role/INTANGIBLEASSETSNET INTANGIBLE ASSETS, NET Notes 11 false false R12.htm 9952161 - Disclosure - DEBT Sheet http://intellicheck.com/role/DEBT DEBT Notes 12 false false R13.htm 9952162 - Disclosure - ACCRUED EXPENSES Sheet http://intellicheck.com/role/ACCRUEDEXPENSES ACCRUED EXPENSES Notes 13 false false R14.htm 9952163 - Disclosure - INCOME TAXES Sheet http://intellicheck.com/role/INCOMETAXES INCOME TAXES Notes 14 false false R15.htm 9952164 - Disclosure - STOCKHOLDERS??? EQUITY Sheet http://intellicheck.com/role/STOCKHOLDERSEQUITY STOCKHOLDERS??? EQUITY Notes 15 false false R16.htm 9952165 - Disclosure - COMMITMENTS AND CONTINGENCIES Sheet http://intellicheck.com/role/COMMITMENTSANDCONTINGENCIES COMMITMENTS AND CONTINGENCIES Notes 16 false false R17.htm 995445 - Disclosure - Insider Trading Arrangements Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements Insider Trading Arrangements Notes 17 false false R18.htm 9955511 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Policies) Sheet http://intellicheck.com/role/SIGNIFICANTACCOUNTINGPOLICIESPolicies SIGNIFICANT ACCOUNTING POLICIES (Policies) Policies 18 false false R19.htm 9955512 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Tables) Sheet http://intellicheck.com/role/SIGNIFICANTACCOUNTINGPOLICIESTables SIGNIFICANT ACCOUNTING POLICIES (Tables) Tables http://intellicheck.com/role/SIGNIFICANTACCOUNTINGPOLICIES 19 false false R20.htm 9955513 - Disclosure - CASH EQUIVALENTS (Tables) Sheet http://intellicheck.com/role/CASHEQUIVALENTSTables CASH EQUIVALENTS (Tables) Tables http://intellicheck.com/role/CASHEQUIVALENTS 20 false false R21.htm 9955514 - Disclosure - PROPERTY AND EQUIPMENT, NET (Tables) Sheet http://intellicheck.com/role/PROPERTYANDEQUIPMENTNETTables PROPERTY AND EQUIPMENT, NET (Tables) Tables http://intellicheck.com/role/PROPERTYANDEQUIPMENTNET 21 false false R22.htm 9955515 - Disclosure - INTANGIBLE ASSETS, NET (Tables) Sheet http://intellicheck.com/role/INTANGIBLEASSETSNETTables INTANGIBLE ASSETS, NET (Tables) Tables http://intellicheck.com/role/INTANGIBLEASSETSNET 22 false false R23.htm 9955516 - Disclosure - ACCRUED EXPENSES (Tables) Sheet http://intellicheck.com/role/ACCRUEDEXPENSESTables ACCRUED EXPENSES (Tables) Tables http://intellicheck.com/role/ACCRUEDEXPENSES 23 false false R24.htm 9955517 - Disclosure - STOCKHOLDERS??? EQUITY (Tables) Sheet http://intellicheck.com/role/STOCKHOLDERSEQUITYTables STOCKHOLDERS??? EQUITY (Tables) Tables http://intellicheck.com/role/STOCKHOLDERSEQUITY 24 false false R25.htm 9955518 - Disclosure - NATURE OF BUSINESS (Details) Sheet http://intellicheck.com/role/NATUREOFBUSINESSDetails NATURE OF BUSINESS (Details) Details http://intellicheck.com/role/NATUREOFBUSINESS 25 false false R26.htm 9955519 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) Sheet http://intellicheck.com/role/SIGNIFICANTACCOUNTINGPOLICIESNarrativeDetails SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) Details 26 false false R27.htm 9955520 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES - Schedule of Disaggregation of Revenue (Details) Sheet http://intellicheck.com/role/SIGNIFICANTACCOUNTINGPOLICIESScheduleofDisaggregationofRevenueDetails SIGNIFICANT ACCOUNTING POLICIES - Schedule of Disaggregation of Revenue (Details) Details 27 false false R28.htm 9955521 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES - Schedule of Revenue Performance Obligations (Details) Sheet http://intellicheck.com/role/SIGNIFICANTACCOUNTINGPOLICIESScheduleofRevenuePerformanceObligationsDetails SIGNIFICANT ACCOUNTING POLICIES - Schedule of Revenue Performance Obligations (Details) Details 28 false false R29.htm 9955522 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES - Schedule of Earnings Per Share, Basic and Diluted (Details) Sheet http://intellicheck.com/role/SIGNIFICANTACCOUNTINGPOLICIESScheduleofEarningsPerShareBasicandDilutedDetails SIGNIFICANT ACCOUNTING POLICIES - Schedule of Earnings Per Share, Basic and Diluted (Details) Details 29 false false R30.htm 9955523 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES - Summary of Common Stock Equivalents Excluded from Loss Per Diluted Share (Details) Sheet http://intellicheck.com/role/SIGNIFICANTACCOUNTINGPOLICIESSummaryofCommonStockEquivalentsExcludedfromLossPerDilutedShareDetails SIGNIFICANT ACCOUNTING POLICIES - Summary of Common Stock Equivalents Excluded from Loss Per Diluted Share (Details) Details 30 false false R31.htm 9955524 - Disclosure - CASH EQUIVALENTS - Schedule of Cash and Cash Equivalents and Short Term Investments (Details) Sheet http://intellicheck.com/role/CASHEQUIVALENTSScheduleofCashandCashEquivalentsandShortTermInvestmentsDetails CASH EQUIVALENTS - Schedule of Cash and Cash Equivalents and Short Term Investments (Details) Details 31 false false R32.htm 9955525 - Disclosure - CASH EQUIVALENTS - Narrative (Details) Sheet http://intellicheck.com/role/CASHEQUIVALENTSNarrativeDetails CASH EQUIVALENTS - Narrative (Details) Details 32 false false R33.htm 9955526 - Disclosure - PROPERTY AND EQUIPMENT, NET - Schedule of Property and Equipment, Net (Details) Sheet http://intellicheck.com/role/PROPERTYANDEQUIPMENTNETScheduleofPropertyandEquipmentNetDetails PROPERTY AND EQUIPMENT, NET - Schedule of Property and Equipment, Net (Details) Details 33 false false R34.htm 9955527 - Disclosure - PROPERTY AND EQUIPMENT, NET - Narrative (Details) Sheet http://intellicheck.com/role/PROPERTYANDEQUIPMENTNETNarrativeDetails PROPERTY AND EQUIPMENT, NET - Narrative (Details) Details 34 false false R35.htm 9955528 - Disclosure - INTANGIBLE ASSETS, NET - Schedule of Changes in Carrying Amount of Intangible Assets, Net (Details) Sheet http://intellicheck.com/role/INTANGIBLEASSETSNETScheduleofChangesinCarryingAmountofIntangibleAssetsNetDetails INTANGIBLE ASSETS, NET - Schedule of Changes in Carrying Amount of Intangible Assets, Net (Details) Details 35 false false R36.htm 9955529 - Disclosure - INTANGIBLE ASSETS, NET - Schedule of Intangible Asset Components (Details) Sheet http://intellicheck.com/role/INTANGIBLEASSETSNETScheduleofIntangibleAssetComponentsDetails INTANGIBLE ASSETS, NET - Schedule of Intangible Asset Components (Details) Details 36 false false R37.htm 9955530 - Disclosure - INTANGIBLE ASSETS, NET - Schedule of Intangible Assets Amortization Expense (Details) Sheet http://intellicheck.com/role/INTANGIBLEASSETSNETScheduleofIntangibleAssetsAmortizationExpenseDetails INTANGIBLE ASSETS, NET - Schedule of Intangible Assets Amortization Expense (Details) Details 37 false false R38.htm 9955531 - Disclosure - INTANGIBLE ASSETS, NET - Schedule of Amortization Expense of Intangible Assets (Details) Sheet http://intellicheck.com/role/INTANGIBLEASSETSNETScheduleofAmortizationExpenseofIntangibleAssetsDetails INTANGIBLE ASSETS, NET - Schedule of Amortization Expense of Intangible Assets (Details) Details 38 false false R39.htm 9955532 - Disclosure - ACCRUED EXPENSES - Schedule of Components of Accrued Expenses (Details) Sheet http://intellicheck.com/role/ACCRUEDEXPENSESScheduleofComponentsofAccruedExpensesDetails ACCRUED EXPENSES - Schedule of Components of Accrued Expenses (Details) Details 39 false false R40.htm 9955533 - Disclosure - INCOME TAXES (Details) Sheet http://intellicheck.com/role/INCOMETAXESDetails INCOME TAXES (Details) Details http://intellicheck.com/role/INCOMETAXES 40 false false R41.htm 9955534 - Disclosure - STOCKHOLDERS??? EQUITY - Narrative (Details) Sheet http://intellicheck.com/role/STOCKHOLDERSEQUITYNarrativeDetails STOCKHOLDERS??? EQUITY - Narrative (Details) Details 41 false false R42.htm 9955535 - Disclosure - STOCKHOLDERS??? EQUITY - Schedule of Stock-based Compensation (Details) Sheet http://intellicheck.com/role/STOCKHOLDERSEQUITYScheduleofStockbasedCompensationDetails STOCKHOLDERS??? EQUITY - Schedule of Stock-based Compensation (Details) Details 42 false false R43.htm 9955536 - Disclosure - STOCKHOLDERS' EQUITY - Schedule of Stock Option Activity (Details) Sheet http://intellicheck.com/role/STOCKHOLDERSEQUITYScheduleofStockOptionActivityDetails STOCKHOLDERS' EQUITY - Schedule of Stock Option Activity (Details) Details 43 false false R44.htm 9955537 - Disclosure - STOCKHOLDERS' EQUITY - Schedule of Restricted Stock Unit (RSU) Activity (Details) Sheet http://intellicheck.com/role/STOCKHOLDERSEQUITYScheduleofRestrictedStockUnitRSUActivityDetails STOCKHOLDERS' EQUITY - Schedule of Restricted Stock Unit (RSU) Activity (Details) Details 44 false false R45.htm 9955538 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details) Sheet http://intellicheck.com/role/COMMITMENTSANDCONTINGENCIESDetails COMMITMENTS AND CONTINGENCIES (Details) Details http://intellicheck.com/role/COMMITMENTSANDCONTINGENCIES 45 false false All Reports Book All Reports idn-20260331.htm idn-20260331.xsd idn-20260331_cal.xml idn-20260331_def.xml idn-20260331_lab.xml idn-20260331_pre.xml http://fasb.org/us-gaap/2025 http://xbrl.sec.gov/dei/2025 http://xbrl.sec.gov/ecd/2025 true true