Product and Service [Axis] Hotel [Member] Real Estate [Member] Equity Components [Axis] Common Stock [Member] Additional Paid-in Capital [Member] Retained Earnings [Member] Treasury Stock, Common [Member] Parent [Member] Noncontrolling Interest [Member] Ownership [Axis] Portsmouth Square, Inc. [Member] Long-Lived Asset, Class [Axis] Building Improvement [Member] Statistical Measurement [Axis] Minimum [Member] Maximum [Member] Furniture and Fixtures [Member] Rental Property [Member] Building And Improvements [Member] Credit Facility [Axis] Unsecured Revolving Credit Facility [Member] Hotel Rooms [Member] Food and Beverage [Member] Parking [Member] Other Operating Departments [Member] Land [Member] Finance Lease Right-of-Use Assets [Member] Building Improvements [Member] Hotel Operations [Member] Collateral Held [Axis] Equity Securities [Member] Fair Value Hierarchy and NAV [Axis] Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 3 [Member] Derivative Instrument [Axis] Interest Rate Cap [Member] Related and Nonrelated Parties [Axis] Note Payable Hilton [Member] Note Payable - Aimbridge [Member] Debt Instrument [Axis] Interest Free Development Incentive Note [Member] Hilton [Member] Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Hotel Management Agreement [Member] Long-Term Debt, Type [Axis] Other Notes Payable [Member] Senior Mortgage Loan [Member] Scenario [Axis] Forecast [Member] Second Extension [Member] Third Extension [Member] Loan Agreement [Member] Geographical [Axis] Seven Point Six Five Percent Sf Hotel [Member] 7.25% SF Hotel [Member] Mortgage Notes Payable Hotel [Member] 5.40% Florence [Member] 2.95% Las Colinas [Member] 7.60% Las Colinas [Member] 3.17% Morris County [Member] 8.60% St. Louis [Member] 3.650% Los Angeles One [Member] 3.50% Los Angeles Two [Member] 3.50% Los Angeles Three [Member] 2.52% Los Angeles [Member] 4.40% Los Angeles [Member] 3.05% Los Angeles [Member] 3.09% Los Angeles [Member] 3.05% Los Angeles [Member] 3.50% Los Angeles Four [Member] 3.75% Los Angeles [Member] 3.50% Los Angeles Five [Member] 3.50% Los Angeles Six [Member] 3.50% Los Angeles Seven [Member] 3.50% Los Angeles Eight [Member] Mortgage Notes Payable Real Estate [Member] 3.59% Los Angeles [Member] Related Party Transaction [Axis] Aimbridge Hospitality [Member] Customer [Axis] Hotel Customers [Member] Real Estate, Type of Property [Axis] Rental Properties [Member] California [Member] New Jersey [Member] Texas [Member] Other States [Member] Income Tax Jurisdiction [Axis] 2037 [Member] 2017 [Member] Intergroup [Member] Portsmouth [Member] Segments [Axis] Real Estate Operations [Member] Investment Transactions [Member] Other [Member] Consolidation Items [Axis] Operating Segments [Member] Plan Name [Axis] 2010 Incentive Plan [Member] Portsmouth Square Inc and InterGroup [Member] Subsequent Event Type [Axis] Subsequent Event [Member] Cover [Abstract] Document Type Amendment Flag Amendment Description Document Registration Statement Document Annual Report Document Quarterly Report Document Transition Report Document Shell Company Report Document Shell Company Event Date Document Period Start Date Document Period End Date Document Fiscal Period Focus Document Fiscal Year Focus Current Fiscal Year End Date Entity File Number Entity Registrant Name Entity Central Index Key Entity Primary SIC Number Entity Tax Identification Number Entity Incorporation, State or Country Code Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Three Entity Address, City or Town Entity Address, State or Province Entity Address, Country Entity Address, Postal Zip Code Country Region City Area Code Local Phone Number Extension Written Communications Soliciting Material Pre-commencement Tender Offer Pre-commencement Issuer Tender Offer Title of 12(b) Security No Trading Symbol Flag Trading Symbol Security Exchange Name Title of 12(g) Security Security Reporting Obligation Annual Information Form Audited Annual Financial Statements Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Elected Not To Use the Extended Transition Period Document Accounting Standard Other Reporting Standard Item Number Entity Shell Company Entity Public Float Entity Bankruptcy Proceedings, Reporting Current Entity Common Stock, Shares Outstanding Documents Incorporated by Reference [Text Block] ICFR Auditor Attestation Flag Document Financial Statement Error Correction [Flag] Auditor Opinion [Text Block] Auditor Name Auditor Location Auditor Firm ID Statement of Financial Position [Abstract] ASSETS Investment in Hotel, net Investment in real estate, net Investment in marketable securities Cash and cash equivalents Restricted cash Other assets Assets held for sale Total assets LIABILITIES AND SHAREHOLDERS’ DEFICIT Liabilities: Accounts payable and other liabilities Accounts payable and other liabilities – Hotel Due to securities broker Obligations for securities sold Other notes payable Deferred tax liability Mortgage and mezzanine notes payable - Hotel Mortgage notes payable – real estate Total liabilities Commitments and contingencies - Note 17 Shareholders’ deficit: Preferred stock, $.01 par value, 100,000 shares authorized; none issued Common stock, $.01 par value, 4,000,000 shares authorized; 3,459,888 and 3,459,888 issued; 2,148,812 and 2,154,405 outstanding as of June 30, 2026 and 2025, respectively Additional paid-in capital Accumulated deficit Treasury stock, at cost, 1,311,076 and 1,305,483 shares as of June 30, 2026 and 2025, respectively Total InterGroup shareholders’ deficit Non-controlling interest Total shareholders’ deficit Total liabilities and shareholders’ deficit Preferred stock, par value Preferred stock, shares authorized Preferred stock, shares issued Common stock, par value Common stock, shares authorized Common stock, shares issued Common stock, shares outstanding Treasury stock, shares Statement [Table] Statement [Line Items] Revenues: Total revenues Costs and operating expenses: Hotel operating expenses Real estate operating expenses Depreciation and amortization expense General and administrative expense Total costs and operating expenses Income from operations Other (expense) income: Interest expense – mortgages and mezzanine Net realized gain (loss) on marketable securities Net unrealized gain (loss) on marketable securities Gain from insurance claims Gain from sale of real estate Gain on debt extinguishment Dividend and interest income Trading and margin interest expense Net other expense Income (loss) before income taxes Income tax expense Net income (loss) Less: Net loss attributable to the noncontrolling interest Net income (loss) attributable to InterGroup Net income (loss) per share Basic Diluted Net income (loss) per share attributable to InterGroup Basic Diluted Weighted average number of common shares outstanding Weighted average number of diluted shares outstanding Balance Balance, shares Net Income (loss) Stock options expense Investment in Portsmouth Purchase of treasury stock Balance Balance, shares Statement of Cash Flows [Abstract] Cash flows from operating activities: Net income (loss) Adjustments to reconcile net income (loss) to net cash provided by operating activities: Net unrealized (gain) loss on marketable securities Deferred taxes Gain on insurance recovery Gain from sale of real estate Gain on extinguishment of debt Depreciation and amortization Amortization of loan cost Amortization of other notes payable Stock compensation expense Changes in assets and liabilities: Investment in marketable securities Other assets Accounts payable and other liabilities Accounts payable and other liabilities – Hotel Due to securities broker Obligations for securities sold Net cash provided by operating activities Cash flows from investing activities: Capital expenditures for property and equipment - Hotel Capital expenditures for property and equipment - real estate Proceeds from sale of real estate, net Investment in Portsmouth Insurance proceeds for property damage claims Net cash provided by (used in) investing activities Cash flows from financing activities: Issuance costs from Hotel refinance Payments of mortgage Payoff mortgage indebtedness Proceeds from mortgage, mezzanine and other notes payable Purchase of treasury stock Net cash (used in) provided by financing activities Net increase in cash, cash equivalents and restricted cash: Cash, cash equivalents and restricted cash at the beginning of the year Cash, cash equivalents and restricted cash at the end of the year Supplemental information: Federal income taxes paid State income taxes paid Interest paid Cash and cash equivalents Restricted cash Cash included in assets held for sale Restricted cash included in assets held for sale Total cash, cash equivalents, and restricted cash Pay vs Performance Disclosure [Table] Executive Category [Axis] Individual [Axis] Adjustment to Compensation [Axis] Measure [Axis] Pay vs Performance Disclosure, Table Company Selected Measure Name Named Executive Officers, Footnote Peer Group Issuers, Footnote Changed Peer Group, Footnote PEO Total Compensation Amount PEO Actually Paid Compensation Amount Adjustment To PEO Compensation, Footnote Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Compensation Actually Paid Amount Adjustment to Non-PEO NEO Compensation Footnote Equity Valuation Assumption Difference, Footnote Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Company Selected Measure Total Shareholder Return Vs Peer Group Compensation Actually Paid vs. Other Measure Tabular List, Table Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Net Income (Loss) Company Selected Measure Amount Other Performance Measure, Amount Adjustment to Compensation, Amount PEO Name Name Non-GAAP Measure Description Additional 402(v) Disclosure Pension Benefits Adjustments, Footnote Equity Awards Adjustments, Footnote Erroneously Awarded Compensation Recovery [Table] Restatement Determination Date [Axis] Restatement Determination Date Aggregate Erroneous Compensation Amount Erroneous Compensation Analysis Stock Price or TSR Estimation Method Outstanding Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Not Yet Determined Name Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery, Explanation of Impracticability Name Compensation Amount Restatement does not require Recovery Awards Close in Time to MNPI Disclosures [Table] Award Type [Axis] Award Timing MNPI Disclosure Award Timing Method Award Timing Predetermined Award Timing MNPI Considered Award Timing, How MNPI Considered MNPI Disclosure Timed for Compensation Value Awards Close in Time to MNPI Disclosures, Table Name Underlying Securities Exercise Price Fair Value as of Grant Date Underlying Security Market Price Change Insider Trading Arrangements [Line Items] Material Terms of Trading Arrangement Name Title Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted Adoption Date Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated Termination Date Expiration Date Arrangement Duration Aggregate Available Rule 10b5-1 Arrangement Modified Non-Rule 10b5-1 Arrangement Modified Insider Trading Policies and Procedures [Line Items] Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Not Adopted Cybersecurity Risk Management, Strategy, and Governance [Abstract] Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block] Cybersecurity Risk Management Processes Integrated [Flag] Cybersecurity Risk Management Processes Integrated [Text Block] Cybersecurity Risk Management Third Party Engaged [Flag] Cybersecurity Risk Third Party Oversight and Identification Processes [Flag] Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag] Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Text Block] Cybersecurity Risk Board of Directors Oversight [Text Block] Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block] Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block] Cybersecurity Risk Role of Management [Text Block] Cybersecurity Risk Management Positions or Committees Responsible [Flag] Cybersecurity Risk Management Positions or Committees Responsible [Text Block] Cybersecurity Risk Management Expertise of Management Responsible [Text Block] Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block] Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag] Material Cybersecurity Incident [Abstract] Material Cybersecurity Incident Nature [Text Block] Material Cybersecurity Incident Scope [Text Block] Material Cybersecurity Incident Timing [Text Block] Material Cybersecurity Incident Material Impact or Reasonably Likely Material Impact [Text Block] Material Cybersecurity Incident Information Not Available or Undetermined [Text Block] Accounting Policies [Abstract] BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES AND PRACTICES Organization, Consolidation and Presentation of Financial Statements [Abstract] LIQUIDITY Revenue from Contract with Customer [Abstract] REVENUE Investment In Hotel Net INVESTMENT IN HOTEL, NET Real Estate [Abstract] INVESTMENT IN REAL ESTATE, NET Investments, Debt and Equity Securities [Abstract] INVESTMENT IN MARKETABLE SECURITIES Fair Value Disclosures [Abstract] FAIR VALUE MEASUREMENTS Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] OTHER ASSETS Other Financing Transactions OTHER FINANCING TRANSACTIONS Debt Disclosure [Abstract] MORTGAGE AND MEZZANINE LOANS Management Agreements MANAGEMENT AGREEMENTS Risks and Uncertainties [Abstract] CONCENTRATION OF CREDIT RISK Income Tax Disclosure [Abstract] INCOME TAXES Segment Reporting [Abstract] SEGMENT INFORMATION Share-Based Payment Arrangement [Abstract] STOCK-BASED COMPENSATION PLANS Related Party Transactions [Abstract] RELATED PARTY TRANSACTIONS Commitments and Contingencies Disclosure [Abstract] COMMITMENTS AND CONTINGENCIES Banking and Thrift Disclosure [Text Block] DISPOSITION OF REAL ESTATE Subsequent Events [Abstract] SUBSEQUENT EVENTS Principles of Consolidation Investment in Hotel, Net Investment in Real Estate, Net Investment in Marketable Securities Cash and Cash Equivalents Restricted Cash Other Assets Due to Securities Broker Obligation for Securities Sold Accounts Payable and Other Liabilities Treasury Stock Assets Held for Sale – Accounting Policy (Continuing Operations) Interest Rate Cap Revenue Recognition Advertising Costs Income Taxes Earnings Per Share Use of Estimates Debt Issuance Costs Recently Issued and Adopted Accounting Pronouncements SCHEDULE OF DISAGGREGATION OF REVENUE SCHEDULE OF INVESTMENT IN HOTEL SCHEDULE OF INVESTMENT IN REAL ESTATE SCHEDULE OF COST AND FAIR VALUE INFORMATION FOR MARKETABLE SECURITIES SCHEDULE OF NET GAIN (LOSS) ON MARKETABLE SECURITIES COMPRISING OF REALIZED AND UNREALIZED COMPONENTS SCHEDULE OF FAIR VALUE MEASUREMENT ON RECURRING BASIS SCHEDULE OF OTHER ASSETS, NET SUMMARY OF OTHER NOTES PAYABLE SUMMARY OF CONTRACTUAL MATURITIES AND SCHEDULED REDUCTIONS OF OTHER NOTES PAYABLE SCHEDULE OF MORTGAGE NOTE PAYABLE SCHEDULE OF CONTRACTUAL MATURITIES SCHEDULE OF INCOME TAX (EXPENSE) BENEFIT SCHEDULE OF INCOME TAX PAID SCHEDULE OF EFFECTIVE INCOME TAX RATE RECONCILIATION SCHEDULE OF DEFERRED TAX ASSETS AND LIABILITIES SCHEDULE OF ESTIMATED NET OPERATING LOSSES (NOLS) SCHEDULE OF UNCERTAIN TAX POSITIONS SCHEDULE OF SEGMENT REPORTING INFORMATION SCHEDULE OF STOCK OPTION ACTIVITY SCHEDULE OF ASSETS HELD FOR SALE Property, Plant, and Equipment [Table] Property, Plant, and Equipment [Line Items] Minority interest ownership percentage Estimated useful lives Impairment losses Impairment loss on investments in real estate Acquisition of treasury stock Advertising cost Line of Credit Facility [Table] Line of Credit Facility [Line Items] Marketable securities Net cash provided by operating activities Senior mortgage loan Mezzanine loan Maturity date Borrowing capacity Interest rate percentage Outstanding balance Remaining borrowing capacity Line of credit facility, description Disaggregation of Revenue [Table] Disaggregation of Revenue [Line Items] Accounts payable and other accrued liabilities Contract liabilities Cost Accumulated Depreciation and Amortization Net Book Value InvestmentTable [Table] InvestmentLineItem [Line Items] Finance lease ROU assets useful life Depreciation and amortization expense related to hotel assets Depreciation and amortization difference amount Land Buildings, improvements and equipment Accumulated depreciation Investment in real estate, gross Land held for development Investment in real estate, net Accumulated depreciation Sale price of real estate Gain on sale of disposition of real estate Financing Receivable, Past Due [Table] Financing Receivable, Past Due [Line Items] Cost Gross Unrealized Gain Gross Unrealized Loss Net Unrealized Gain Fair Value Realized gain (loss) on marketable securities Unrealized gain (loss) on marketable securities Net gain (loss) on marketable securities Equity security percentage Fair Value, off-Balance-Sheet Risk [Table] Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items] Marketable equity securities Interest rate cap Total assets Total liabilities Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Derivative notional amount Accounts receivable, net Prepaid expenses Miscellaneous assets Prepaid taxes Total other assets Account receivable Allowance for account receivable Defined Benefit Plan [Table] Defined Benefit Plan Disclosure [Line Items] Total other notes payable Schedule of Long-Term Debt Instruments [Table] Debt Instrument [Line Items] 2027 2028 2029 2030 2031 Thereafter Long term debt Short-Term Debt [Table] Short-Term Debt [Line Items] Outstanding balance Debt instrument, payment terms Key money incentive fee Number of Units Origination Date Maturity Date Origination Date Annual interest rate on mortgage Debt instrument, default rate Debt instrument, SOFR rate Debt issuance costs Total mortgage notes payable - Hotel Mortgage notes payable - real estate Total mortgage notes payable - real estate 2027 2028 2029 2030 2031 Thereafter Contractual debt  Mortgage loan amount Principal amount Interest floating rate SOFR cap rate Debt yield requirements, percentage Deferred forbearance fee Accrued default interest Gain on extinguishment of debt Related Party Transaction [Table] Related Party Transaction [Line Items] Base management fee, description Earnings before interest, tax, depreciation, and amortization Base management fees Adjustment for amortization Incentive fees waived Nature of Operation, Product Information, Concentration of Risk [Table] Product Information [Line Items] Allowance for doubtful accounts Current tax benefit (expense) Deferred tax (expense) benefit Federal income tax (expense) benefit, total Current tax benefit (expense) Deferred tax expense State income tax (expense) benefit, total Income tax expense IncomeTaxDisclosureTable [Table] Federal State Total income taxes paid Statutory federal tax rate Tax Jurisdiction of Domicile [Extensible Enumeration] State income taxes, net of federal tax benefit Dividend received deduction Perm differences Provision to return adjustment Stock based compensation Valuation allowance Payable true up State rate change impact Other Net operating loss carryforwards Deferred gains on real estate sale and depreciation Capital loss carryforwards Accruals and reserves Interest expense Tax credits State taxes Intercompany interest Other Deferred Tax Asset before Valuation Allowance Valuation Allowance Deferred Tax Asset after Valuation Allowance Deferred gains on real estate sale and depreciation Unrealized gain on marketable securities Intercompany interest Other Deferred Tax Liability Net deferred tax liability Net operating loss carryforwards, Federal Net operating loss carryforwards, State Unrecognized Tax Benefits at June 30, 2025 Increase in tax positions taken Decrease in tax positions taken Unrecognized Tax Benefits at June 30, 2026 Effective Income Tax Rate Reconciliation [Table] Effective Income Tax Rate Reconciliation [Line Items] Deferred tax assets valuation allowance Change in valuation allowance Net operating loss carryforwards, federal Net operating loss carryforwards, state Operating loss carryforward Future taxable income, percentage Capital loss carryforwards federal and state Capital loss tax credits carryforwards Interest and penalties Segment Reporting [Table] Segment Reporting [Line Items] Revenues Operating expenses Utilities Real estate taxes Insurance General and administrative Segment income (loss) from operations Interest expense - mortgages Gain on insurance recovery Gain on sale of real estate Loss from investments Income tax benefit Net (loss) income Total assets Number of reportable segments Number of shares, outstanding, beginning balance Weighted average exercise price, outstanding, beginning balance Weighted average remaining life, outstanding, ending balance Aggregate intrinsic value, outstanding, beginning balance Number of shares, granted Weighted average exercise price, granted Number of shares, exercised Weighted average exercise price, exercised Number of shares, expired Weighted average exercise price, expired Number of shares, exchanged Weighted average exercise price, exchanged Number of shares, outstanding, ending balance Weighted average exercise price, outstanding, ending balance Aggregate intrinsic value, outstanding, ending balance Number of shares, exercisable, ending balance Weighted average pxercise price, exercisable, ending balance Weighted average remaining life, exercisable, ending balance Aggregate intrinsic value, exercisable, ending balance Number of shares, vested and expected to vest, ending balance Weighted average exercise price, vested and expected to vest, ending balance Weighted average remaining life, vested and expected to vest, ending balance Aggregate intrinsic value, vested and expected to vest, ending balance Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Restricted stock unit outstanding Number of shares authorized Number of sharea granted Exercise price per share Expired date Unexercised date Options expire term Stock based compensation vesting period Share based compensation option vested Stock option compensation cost Intrinsic value Maximum borrowings capacity Interest rate, percentage Line of credit extend maturity date Advance to related party debt Outstanding principal balance Interest income Cost and expenses Service fees Cash Restricted cash Accounts receivable Investment in real estate Other assets Total assets held for sale Mortgage loan outstanding principal balance Subsequent Event [Table] Subsequent Event [Line Items] Related party credit facility Rule 10b5-1 Arrangement Modified Non-Rule 10b5-1 Arrangement Modified Management Agreements [Text Block] Aimbridge Hospitality [Member] Earnings before interest tax depreciation and amortization. Incentive fees waived. Hotel Customers [Member] Rental Properties [Member] Interest rate cap. Obligations for securities sold. Equity security percentage. Income tax reconciliation deduction dividends. Other perm items. Provision to return adjustment. Payable true up. State rate change impact. Investment in Hotel, net. Sum of the carrying values as of the balance sheet date of obligations incurred through that date, including liabilities incurred and payable to vendors for goods and services received, taxes, interest, rent and utilities, compensation costs, payroll taxes and fringe benefits (other than pension and postretirement obligations), contractual rights and obligations, and statutory obligations. Mortgage notes payable - Hotel. Mortgage notes payable real estate. Other Financing Transactions [Text Block] Summary Of Other Notes Payable [Table Text Block] Deferred tax assets gains on real estate sale and depreciation. Deferred tax assets intercompany interest. Interest Free Development Incentive Note [Member] Hilton [Member] Deferred tax asset after valuation allowance. Deferred tax liabilities deferred gains on real estate sale and depreciation. Note Payable - Aimbridge [Member] Deferred tax liabilities state tax deferred income. Deferred tax liabilities assets. Hotel operating expenses. Real Estate operating expenses. Amount of advance relating to key money incentive fee to related party. Hotel Management Agreement [Member] Deferred tax liabilities intercompany interest. Deferred tax assets operating loss carryforwards state. Other Notes Payable [Member] Long-term debt, maturity, after year four. Earnings per share basic and diluted attributable to parent abstract. Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. 2037 [Member] 2017 [Member] Deferred tax assets capital loss carryforwards state and local. Investment in subsidiaries one. Amortization of other notes payable. Increase (decrease) in accounts payable and accrued liabilities hotel. Increase (decrease) in obligations for securities sold. Schedule Of Income Tax Carryforward [Table Text Block] Payments of payoff mortgage indebtness. Intergroup [Member] Portsmouth [Member] Issuance costs from hotel refinance. Senior Mortgage Loan [Member] Portsmouth Square, Inc. [Member] Investment in Hotel, Net [Policy Text Block] Building Improvement [Member] Hotel Operations [Member] Real Estate Operations [Member] Investment Transactions [Member] Other [Member] Rental Property [Member] Building And Improvements [Member] Other Assets Net [Policy Text Block] Due to Securities Broker [Policy Text Block] Obligations For Securities Sold [Policy Text Block] Accounts Payable And Other Liabilities [Policy Text Block] Treasury Stock [Policy Text Block] Assets Held For Sale [Policy Text Block] Interest Rate Cap [Policy Text Block] Second Extension [Member] Third Extension [Member] Loan Agreement [Member] Deferred forbearance fee. Senior mortgage loan. Mezzanine loan. Represents the number of hotel rooms. 7.65% SF Hotel [Member] Represents the origination date. Represents the maturity date. Unsecured Revolving Credit Facility [Member] Hotel Rooms [Member]  Mortgage notes payable hotel gross. Other Operating Departments [Member] 7.25% SF Hotel [Member] Mortgage Notes Payable Hotel [Member] Investment [Text Block] ScheduleOfInvestmentInHotelTableTextBlock Finance Lease Right-of-Use Assets [Member] 5.40% Florence [Member] Gross amount before deduction of debt issuance cost as of the balance sheet date of mortgage notes payable related to real estate property. 2.95 Las Colinas [Member] 7.60 Las Colinas [Member] Three Point One seven Morris County [Member] Eight Point Six Zero StLouis [Member] 3.650% Los Angeles One [Member] 3.50 Los Angeles Two [Member] 3.50 Los Angeles Three [Member] 2.52% Los Angeles [Member] 4.40 Los Angeles [Member] 3.05 Los Angeles [Member] 3.59 Los Angeles [Member] 3.09% Los Angeles [Member] 3.05% Los Angeles [Member] 3.50% Los Angeles Four [Member] 3.75 Los Angeles [Member] 3.50 Los Angeles Five [Member] 3.50 Los Angeles Six [Member] 3.50 Los Angeles Seven [Member] 3.50 Los Angeles Eight [Member] Mortgage Notes Payable Real Estate [Member] Number of options vested. Number of Shares, Exchanged. Weighted Average Exercise Price, Exchanged. Number of options expired in period. Real estate investment, land held for development. Number of options expired in period. Portsmouth Square Inc and InterGroup [Member] Impairment of investment. Restricted cash included in assets held for sale. Service fees. Income tax rate settlement. Note Payable Hilton [Member] 2010 Incentive Plan [Member] Sharebased compensation arrangement by sharebased payment award number of options expired Sharebased compensation arrangement by sharebased payment award contractual term Income Taxes Paid [Table Text Block] New Jersey [Member] Texas [Member] Other States [Member] California [Member] Income Tax Jurisdiction, Domestic Federal [Member] 3.05% Los Angeles [Member] [Default Label] Assets Liabilities Treasury Stock, Common, Value Equity, Attributable to Parent Equity, Including Portion Attributable to Noncontrolling Interest Liabilities and Equity HotelOperatingExpenses RealEstateOperatingExpenses General and Administrative Expense Operating Expenses Operating Income (Loss) Interest Expense, Debt Nonoperating Income (Expense) Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Net Income (Loss) Attributable to Noncontrolling Interest Earnings Per Share, Basic Earnings Per Share, Diluted Shares, Outstanding Treasury Stock, Value, Acquired, Cost Method AmortizationOfOtherNotesPayable Increase (Decrease) in Debt Securities, Trading, and Equity Securities, FV-NI Increase (Decrease) in Other Operating Assets Increase (Decrease) in Accounts Payable and Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilitiesHotel Increase (Decrease) in Due to Related Parties IncreaseDecreaseInObligationsForSecuritiesSold Payments to Acquire Property, Plant, and Equipment Payment for Acquisition, Real Estate, Held-for-Investment Payments to Acquire Additional Interest in Subsidiaries Cash Provided by (Used in) Investing Activity, Including Discontinued Operation IssuanceCostsFromHotelRefinance Repayments of Other Debt PaymentsOfPayoffMortgageIndebtness Payments for Repurchase of Common Stock Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation Restricted Cash, Current Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents RestrictedCashIncludedInAssetsHeldForSale Forgone Recovery, Individual Name Outstanding Recovery, Individual Name Awards Close in Time to MNPI Disclosures, Individual Name Trading Arrangement, Individual Name Real Estate Investment Property, Accumulated Depreciation SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Gross SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Investment Property, Net Debt Securities, Trading, Amortized Cost Debt Securities, Trading, Unrealized Loss Debt Securities, Trading, Unrealized Gain (Loss) Marketable Security, Gain (Loss) Other Assets, Current Long-Term Debt Notes Reduction Mortgage notes payable hotel gross. Debt Issuance Costs, Net Contractual Obligation, to be Paid, Year One Contractual Obligation, to be Paid, Year Two Contractual Obligation, to be Paid, Year Three Contractual Obligation, to be Paid, Year Four Contractual Obligation, to be Paid, Year Five Contractual Obligation, to be Paid, after Year Five Contractual Obligation Current Federal Tax Expense (Benefit) Deferred Federal Income Tax Expense (Benefit) Federal Income Tax Expense (Benefit), Continuing Operations Current State and Local Tax Expense (Benefit) Deferred State and Local Income Tax Expense (Benefit) State and Local Income Tax Expense (Benefit), Continuing Operations IncomeTaxReconciliationOtherPermItems Deferred Tax Assets, Other Deferred Tax Assets, Gross DeferredTaxAssetAfterValuationAllowance DeferredTaxLiabilitiesDeferredGainsOnRealEstateSaleAndDepreciation Deferred Tax Liabilities, Unrealized Gains on Trading Securities DeferredTaxLiabilitiesIntercompanyInterest DeferredTaxLiabilitiesStateTaxDeferredIncome Deferred Tax Liabilities, Gross DeferredTaxLiabilitiesAssetsNet Unrecognized Tax Benefits Utilities Operating Expense Real Estate Tax Expense Insurance Tax Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Restricted Cash and Cash Equivalent, Current Other Assets, Noncurrent