Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Trading Arrangement: Trading Arrangement [Axis] Multifamily Segment Multifamily Segment [Member] Member represent Multi family segment. Title of 12(b) Security Title of 12(b) Security Subsequent Event Subsequent Event [Member] Document Fiscal Year Focus Document Fiscal Year Focus Gain on real estate transactions Gain on sale or write down of assets, net Gain (Loss) On Real Estate Transactions Gain (Loss) On Real Estate Transactions Adjustment to Compensation, Amount Adjustment to Compensation Amount Financial Instrument [Axis] Financial Instrument [Axis] Tenant and other receivables Deferred Rent Receivables, Net Real Estate [Line Items] Real Estate [Line Items] Segment Reporting [Abstract] Segment Reporting [Abstract] Polk County Land Polk County Land [Member] Polk County Land Schedule of Gain Loss on Real Estate Transactions Schedule Of Gain (Loss) On Sale Of Assets [Table Text Block] Schedule Of Gain (Loss) On Sale Of Assets Property operating expenses (including $92 and $88 for the three months ended June 30, 2026 and 2025, respectively, and $190 and $174 for the six months ended June 30, 2026 and 2025, respectively, from related parties) Property operating expenses Direct Costs of Leased and Rented Property or Equipment Common stock, $0.01 par value, 100,000,000 shares authorized; 16,152,043 shares issued and outstanding Common Stock, Value, Issued Pillar and Regis Pillar and Regis [Member] Pillar and Regis Plaza at Chase Oaks Plaza at Chase Oaks [Member] Plaza at Chase Oaks Angelo & Vito's Pizzerias Angelo & Vito's Pizzerias [Member] Angelo & Vito's Pizzerias Restatement Determination Date Restatement Determination Date Investment in unconsolidated joint ventures Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Exchange share (in shares) Noncontrolling Interest, Exchange Rate Noncontrolling Interest, Exchange Rate Parc at Opelika Phase II Parc at Opelika Phase II [Member] Parc at Opelika Phase II Notes Receivable Financing Receivables [Text Block] Purchase of TCI and/or IOR shares Payments For Repurchase Of Equity By Noncontrolling Interest Payments For Repurchase Of Equity By Noncontrolling Interest Amendment Flag Amendment Flag Provision (recovery) of bad debts Accounts Receivable, Credit Loss Expense (Reversal) Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Short Term Investment [Line Items] Short Term Investment [Line Items] Short Term Investment [Line Items] Less accumulated depreciation Real Estate Investment Property, Accumulated Depreciation Disposal Group Classification [Axis] Disposal Group Classification [Axis] Short-term Investments Investment [Text Block] Disposal Group, Held-for-Sale, Not Discontinued Operations Disposal Group, Held-for-Sale, Not Discontinued Operations [Member] Leases [Abstract] Leases [Abstract] Related Party Transactions Related Party Transactions Disclosure [Text Block] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Schedule of the Real Estate Owned Real Estate Investment Financial Statements, Disclosure [Table Text Block] EQK Portage EQK Portage [Member] EQK Portage BT Cole Two BT Cole Two [Member] BT Cole Two Entity Address, State or Province Entity Address, State or Province PEO Total Compensation Amount PEO Total Compensation Amount Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Earnings per share - basic and diluted Earnings Per Share Basic and Diluted (EPS) [Abstract] Earnings Per Share Basic and Diluted (EPS) Alera Alera [Member] Alera Basic (in shares) Weighted-average common shares outstanding - basic (in shares) Weighted Average Number of Shares Outstanding, Basic Less discount Short-Term Investments, Unamortized Discount (Premium) Short-Term Investments, Unamortized Discount (Premium) Ownership interest if note converted Financing Receivable, Convertible, Conversion Feature, Ownership Interest Financing Receivable, Convertible, Conversion Feature, Ownership Interest Vista Ridge Vista Ridge [Member] Vista Ridge ABC Land and Development, Inc. ABC Land and Development, Inc. [Member] ABC Land and Development, Inc. Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Notes Receivable Notes Receivable [Member] Number of reportable segments Number of Reportable Segments Interest Rate SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Interest Rate Entity Address, City or Town Entity Address, City or Town Pending Litigation Pending Litigation [Member] Receivables [Abstract] Receivables [Abstract] Statement of Financial Position [Abstract] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Receivable [Domain] Receivable [Domain] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Interest rate (as a percent) Investment Interest Rate 2029 Lessor, Operating Lease, Payment to be Received, Year Three Kensington Park Kensington Park [Member] Kensington Park Name of Property [Axis] Name of Property [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Blue Lake Villas Phase II Blue Lake Villas Phase II [Member] Blue Lake Villas Phase II Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Spartan Land Spartan Land [Member] Spartan Land Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Litigation Case [Axis] Litigation Case [Axis] Property tax and insurance Property Tax And Insurance [Member] Property Tax And Insurance Inwood on the Park Inwood on the Park [Member] Inwood on the Park Land Land [Member] Schedule of Profit by Reportable Segment Segment Reporting [Table Text Block] TCI Transcontinental Realty Investors, Inc. [Member] Transcontinental Realty Investors, Inc. Noncontrolling Interest Noncontrolling Interest [Member] Related Party [Axis] Related and Nonrelated Parties [Axis] Noncontrolling Interests Noncontrolling Interest Disclosure [Text Block] Proceeds from mortgages and other notes payable Proceeds From Mortgages And Other Payables Proceeds From Mortgages And Other Payables Prime Prime [Member] Mortgages and other notes payable Carrying Value Long-Term Debt Commercial Properties Commercial Properties [Member] Real estate held designated as commercial property. Non-cash investing and financing activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Document Period End Date Document Period End Date Changes in assets and liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Preferred stock, outstanding (in shares) Preferred Stock, Shares Outstanding Gain on sale Gain (Loss) on Sale of Properties Security Exchange Name Security Exchange Name Schedule of Reconciliation of NOI to Net Income Segment Reporting, Reconciliation of Revenue by Segment to Consolidated [Table Text Block] Adjustment to noncontrolling interest Noncontrolling Interest, Period Increase (Decrease) Short term investment, gross Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Current Aventi Aventi [Member] Aventi Lease Revenue Lessor, Operating Leases [Text Block] UHF and Pillar UHF and Pillar [Member] UHF and Pillar Area of land (in acres) Area of Land Entity Shell Company Entity Shell Company Consolidation Items [Domain] Consolidation Items [Domain] Mortgages Mortgages [Member] Earnings Per Share Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Development fees to related party Development Fees to Related party Development Fees to Related party Earnings Per Share [Abstract] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Document Fiscal Period Focus Document Fiscal Period Focus Parc at Windmill Farms Parc at Windmill Farms [Member] Represents member related to Parc at Windmill Farms. Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Total liabilities Liabilities Trading Symbol Trading Symbol Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Weighted average common shares used in computing earnings per share Weighted Average Number of Shares Outstanding, Basic [Abstract] Accrued development costs Accrued Development Cost Accrued Development Cost New Concept Energy New Concept Energy [Member] Member represent new concept energy. Company Selected Measure Name Company Selected Measure Name Gruppa Florentina Gruppa Florentina [Member] Gruppa Florentina Echo Station Echo Station [Member] Echo Station Income Tax Disclosure [Abstract] Payments on mortgages and other notes payable Repayment Of Mortgages And Other Payables Repayment Of Mortgages And Other Payables Ownership interest (as a percent) Subsidiary, Ownership Percentage, Parent Related Party Transactions [Abstract] Related Party Transactions [Abstract] Cash Flow From Operating Activities: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate Schedule [Table] SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate Schedule [Table] Compensation Amount Outstanding Recovery Compensation Amount Chelsea Chelsea [Member] Chelsea Individual: Individual [Axis] Bandera Ridge Bandera Ridge [Member] Bandera Ridge Diluted (in shares) Weighted-average common shares outstanding - diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Entity Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Deferred leasing costs Payment for Initial Direct Cost, Lease, Investing Activity Underlying Security Market Price Change Underlying Security Market Price Change, Percent Timbers at The Park Timbers at The Park [Member] Timbers at The Park Riverview on the Park Land, LLC Riverview on the Park Land, LLC [Member] Represents member related to Riverview on the Park Land, LLC. Related party receivable Increase (Decrease) in Accounts Receivable, Related Parties Villas at Bon Secour Villas at Bon Secour [Member] Villas at Bon Secour Revenue from Contract with Customer [Abstract] Receivable from related party Other Receivables Award Timing Predetermined Award Timing Predetermined [Flag] Deferred Deferred Federal Income Tax Expense (Benefit) Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Total cost Real Estate Investment Property, Excluding Real Estate Held for Sale, at Cost Real Estate Investment Property, Excluding Real Estate Held for Sale, at Cost Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Area of real estate property (in sq ft) Area of Real Estate Property Litigation Status [Domain] Litigation Status [Domain] All Executive Categories All Executive Categories [Member] Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Depreciation Depreciation Option to purchase developed lots, number of lots Option To Purchase Developed Lots, Number of Lots Option To Purchase Developed Lots, Number of Lots Schedule of Basic and Diluted EPS Calculation Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Noncontrolling Interest [Line Items] Noncontrolling Interest [Line Items] Operating Segments Segment Reporting [Text Block] Expiration Date Trading Arrangement Expiration Date IOR Income Opportunity Realty Investors, Inc. [Member] Income Opportunity Realty Investors, Inc. (“IOR”) Real Estate [Table] Real Estate [Table] Liabilities: Liabilities [Abstract] Steeple Crest Steeple Crest [Member] Represents member steeple crest. Bellwether Ridge Bellwether Ridge [Member] Represents member related to Bellwether Ridge. Restricted cash Restricted Cash and Cash Equivalent Notes Bears Interest Until December 31, 2026 Notes Bears Interest Until December 31, 2026 [Member] Notes Bears Interest Until December 31, 2026 Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Total equity Balance at beginning Balance at ending Equity, Including Portion Attributable to Noncontrolling Interest Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Real Estate Property, Ownership [Table] Real Estate Property, Ownership [Table] Forest Grove Forest Grove [Member] Forest Grove Affiliate Affiliated Entity [Member] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Apartment Building Apartment Building [Member] Shares issued (in shares) Noncontrolling Interest, Number Of Common Stock Shares Issued Noncontrolling Interest, Number Of Common Stock Shares Issued Common stock, authorized (in shares) Common Stock, Shares Authorized Real estate Real Estate Investment Property, Net Number of units in real estate property Number of Units in Real Estate Property Exercise Price Award Exercise Price Cash Flow From Investing Activities: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Litigation Status [Axis] Litigation Status [Axis] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Segment Reporting [Line Items] Segment Reporting [Line Items] Document Quarterly Report Document Quarterly Report 2027 Lessor, Operating Lease, Payment to be Received, Year One Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Segments [Domain] Segments [Domain] Mortgages and Other Notes Payable Debt Disclosure [Text Block] Accrued interest Interest Payable Disposal Group Classification [Domain] Disposal Group Classification [Domain] Notes receivable (including $64,835 and $67,349 at June 30, 2026 and December 31, 2025, respectively, from related parties) Notes receivable Carrying value Financing Receivable, after Allowance for Credit Loss Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Equity method investments Equity Method Investments Real Estate Activity Real Estate Disclosure [Text Block] Equity Component [Domain] Equity Component [Domain] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Spyglass of Ennis Spyglass of Ennis [Member] Represents member related to Spyglass of Ennis. Total operating expenses Costs and Expenses Adoption Date Trading Arrangement Adoption Date Number of franchised locations Number Of Franchised Locations Number Of Franchised Locations Interest Rate Debt Instrument, Interest Rate, Stated Percentage Counterparty Name [Domain] Counterparty Name [Domain] Total shareholders' equity Equity, Attributable to Parent Real Estate [Domain] Real Estate [Domain] Assets Assets [Abstract] Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Landing On Bayou Cane Landing On Bayou Cane [Member] Landing On Bayou Cane ABC Paradise, LLC ABC Paradise, LLC [Member] Represents member realated to ABC Paradise, LLC. Insider Trading Policies and Procedures [Line Items] Notes Bears Interest Until December 31, 2029 Notes Bears Interest Until December 31, 2029 [Member] Notes Bears Interest Until December 31, 2029 Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Property In Lease Up Property In Lease Up [Member] Property In Lease Up Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Rental revenues (including $152 and $144 for the three months ended June 30, 2026 and 2025, respectively, and $345 and $289 for the six months ended June 30, 2026 and 2025, respectively, from related parties) Rental revenues Total rental revenue Rental revenue Operating Lease, Lease Income Number of operating segments Number of Operating Segments Entity Central Index Key Entity Central Index Key All Adjustments to Compensation All Adjustments to Compensation [Member] Name of Property [Domain] Name of Property [Domain] Other non-segment items of income (expense) Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Net cash used in operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Development costs incurred Real Estate, Development Costs Incurred Real Estate, Development Costs Incurred District receivables Infrastructure Receivables Infrastructure Receivables Income Statement [Abstract] Income Statement [Abstract] Shareholders' Equity: Equity, Attributable to Parent [Abstract] Document Transition Report Document Transition Report Tuscany Villas Tuscany Villas [Member] Tuscany Villas Ownership [Axis] Ownership [Axis] Investment, Name [Axis] Investment, Name [Axis] Expenses: Operating Expenses [Abstract] Schedule of Income Tax Provision Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Collection of notes receivable Proceeds from Collection of Notes Receivable Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Building and improvements Investment Building and Building Improvements Variable interest rate (as a percent) Debt Instrument, Basis Spread on Variable Rate City Area Code City Area Code Variable Rate [Domain] Variable Rate [Domain] All Individuals All Individuals [Member] Subsequent Events Subsequent Events [Text Block] Other property expenses Other Other Property [Member] Name Forgone Recovery, Individual Name Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Statement [Line Items] Statement [Line Items] Total assets Assets Entity [Domain] Entity [Domain] Preferred stock, issued (in shares) Preferred Stock, Shares Issued Operating Segments Operating Segments [Member] Deferred Income Deferred Gain on Sale of Property [Text Block] Deferred Gain on Sale of Property Cost Noncontrolling Interest, Increase from Sale of Parent Equity Interest Accounts payable and other liabilities (including $31 and $30 at June 30, 2026 and December 31, 2025, respectively, from related parties) Accounts payable and other liabilities Accounts Payable and Other Accrued Liabilities Other assets Increase (Decrease) in Other Operating Assets PEO PEO [Member] Forest Pines Forest Pines [Member] Information by name of property. Deferred revenue Deferred gain Deferred Gain on Sale of Property Lake Shore Villas Lake Shore Villas [Member] Lake Shore Villas Tenant improvements Tenant Improvements Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Subsequent Event Type [Domain] Subsequent Event Type [Domain] Land and Land Improvements Land and Land Improvements [Member] Retained Earnings Retained Earnings [Member] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Acquisition deposits Deposit Assets Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Common stock, outstanding (in shares) Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] Proceeds from construction loans payable Proceeds from Construction Loans Payable Diluted (in dollars per share) EPS - attributable to common shares- diluted (in dollars per share) Earnings Per Share, Diluted Notes Bears Interest Until Maturity Notes Bears Interest Until Maturity [Member] Notes Bears Interest Until Maturity Entity Current Reporting Status Entity Current Reporting Status Net cash (used in) provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Total Shareholder Return Amount Total Shareholder Return Amount Variable component Operating Lease, Variable Lease Income Litigation Case [Domain] Litigation Case [Domain] Ownership [Domain] Ownership [Domain] Blue Lake Villas Blue Lake Villas [Member] Blue Lake Villas Demand notes Demand Notes [Member] Demand Notes Adjustments to reconcile net (loss) income to net cash used in operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Cash Flow From Financing Activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Schedule of Short-term Investments Investment [Table Text Block] Financial Instruments [Domain] Financial Instruments [Domain] Villas of Park West Phase I Villas of Park West I [Member] Villas of Park West I Other income Other Income Purchase of shares/Repurchase of treasury shares Stock Repurchased During Period, Value Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Underlying Securities Award Underlying Securities Amount Purchase of short-term investments Payments to Acquire Short-Term Investments Accrued interest Increase (Decrease) in Interest Payable, Net Depreciation and amortization Depreciation and amortization Cost, Depreciation and Amortization Share outstanding (in shares) Noncontrolling Interest, Number Of Common Stock Shares Outstanding Noncontrolling Interest, Number Of Common Stock Shares Outstanding Preferred Stock Preferred Stock [Member] Autumn Breeze Autumn Breeze [Member] Represents member related to Autumn Breeze. Segment Reporting [Table] Segment Reporting [Table] Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Table] Schedule of Equity Method Investments [Table] Equity Method Investment [Table] Multifamily Properties Multifamily [Member] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Net operating loss NOI from reportable segments Operating Income (Loss) Current Fiscal Year End Date Current Fiscal Year End Date Plum Tree Plum Tree [Member] Represents member related to Plum Tree. Villas of Park West Phase II Villas of Park West II [Member] Villas of Park West II Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Short Term Investment [Table] Short Term Investment [Table] Short Term Investment Gruppa Florentina, LLC Gruppa Florentina, LLC [Member] Gruppa Florentina, LLC Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Entity File Number Entity File Number Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Office Building Office Building [Member] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Common stock, issued (in shares) Common Stock, Shares, Issued Measure: Measure [Axis] Investment in Unconsolidated Joint Ventures Equity Method Investments and Joint Ventures Disclosure [Text Block] Construction in progress Development in Process Other Assets Other Assets Disclosure [Text Block] McKinney Ranch McKinney Ranch [Member] McKinney Ranch Gain on sale or write down of assets, net Gain (Loss) On Sale Or Write Down Of Assets, Net Gain (Loss) On Sale Or Write Down Of Assets, Net Equity Components [Axis] Equity Components [Axis] Related Party Related Party [Member] One Realco Land Holding, Inc. One Realco Land Holding, Inc. [Member] One Realco Land Holding, Inc. Cash paid for taxes Income Tax Paid, after Refund Received Regis Realty Prime, LLC Regis Realty Prime, LLC [Member] Regis Realty Prime, LLC Entity Interactive Data Current Entity Interactive Data Current Variable Rate [Axis] Variable Rate [Axis] Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] Net loss (income) attributable to noncontrolling interests Net loss (income) attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Legacy At Pleasant Grove Legacy At Pleasant Grove [Member] Legacy At Pleasant Grove Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Entity Small Business Entity Small Business Northside on Travis Northside on Travis [Member] Northside on Travis Termination Date Trading Arrangement Termination Date Noncontrolling Interest [Table] Noncontrolling Interest [Table] Subsequent Events [Abstract] Subsequent Events [Abstract] Proceeds from sale Proceeds from Sale of Real Estate Prospectus Endeavors Prospectus Endeavors [Member] Prospectus Endeavors Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Document Type Document Type Fair Value as of Grant Date Award Grant Date Fair Value Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Arrangement Duration Trading Arrangement Duration Subsequent Event [Line Items] Subsequent Event [Line Items] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Local Phone Number Local Phone Number Consolidation Items [Axis] Consolidation Items [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Total revenue Revenues Revenues Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Equity in loss from unconsolidated joint ventures Equity in income from unconsolidated joint ventures Income (loss) from unconsolidated joint ventures Income (Loss) from Equity Method Investments Accounts payable and other liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Executive Category: Executive Category [Axis] Receivable Type [Axis] Receivable Type [Axis] Counterparty Name [Axis] Counterparty Name [Axis] Liabilities and Equity Liabilities and Equity [Abstract] Other Commitments [Table] Other Commitments [Table] 2030 Lessor, Operating Lease, Payment to be Received, Year Four Advisory fee to related party Advisory fee to related party Advisory Fee to Related Party The amount of advisory fees to related parties, during the period. All Award Types Award Type [Domain] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Supplemental cash flow information Supplemental Cash Flow Information [Abstract] Dominion at Mercer Crossing Dominion At Mercer Crossing [Member] Dominion At Mercer Crossing PEO Name PEO Name Total Lessor, Operating Lease, Payment to be Received Total real estate Real Estate Investments, Net Long-Lived Asset, Class [Axis] Long-Lived Asset, Class [Axis] Other assets (including $1,214 and $1,475 at June 30, 2026 and December 31, 2025, respectively, from related parties) Other assets Other assets Other Assets Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Legal Entity [Axis] Legal Entity [Axis] Interest expense Interest Expense, Debt Prepaid expenses and other assets Prepaid Expense and Other Assets Other Commitments [Line Items] Other Commitments [Line Items] Cash, cash equivalents and restricted cash, beginning of period Cash, cash equivalents and restricted cash, end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Fixed component Operating Lease, Lease Income, Lease Payments Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Majority Shareholder Majority Shareholder [Member] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Subsequent Event [Table] Subsequent Event [Table] Parc at Denham Springs Phase II Parc at Denham Springs Phase II [Member] Parc at Denham Springs Phase II Percentage ownership (as a percent) Equity Method Investment, Ownership Percentage Land Land Schedule of Mortgages and Other Notes Payable Schedule of Debt [Table Text Block] Investment, Name [Domain] Investment, Name [Domain] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Basic (in dollars per share) EPS - attributable to common shares- basic (in dollars per share) Earnings Per Share, Basic Insider Trading Arrangements [Line Items] Segment expenses Cost of Revenue Development and renovation of real estate Payments to Develop Real Estate Assets Award Type Award Type [Axis] 2026 Lessor, Operating Lease, Payment to be Received, Remainder of Fiscal Year Deferred financing costs Payments of Financing Costs Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Retained earnings Retained Earnings (Accumulated Deficit) RCM HC Enterprises RCM HC Enterprises [Member] RCM HC Enterprises Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] Realty Advisors, Inc Realty Advisors, Inc [Member] Realty Advisors, Inc Real Estate, Type of Property [Axis] Real Estate, Type of Property [Axis] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Common Stock Common Stock [Member] Schedule of Components of Rental Revenue Operating Lease, Lease Income [Table Text Block] Other non-segment items of income (expense) Segment Reporting, Operating Income (Loss) [Abstract] Shares acquired (in shares) Noncontrolling Interest, Additional Number Of Common Stock Shares Acquired Noncontrolling Interest, Additional Number Of Common Stock Shares Acquired Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Pillar Pillar [Member] Pillar Organization Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Cover [Abstract] Cover [Abstract] MRHI May Realty Holdings, Inc. [Member] May Realty Holdings, Inc. Disposal Group, Held-for-sale or Disposed of by Sale, Not Discontinued Operations Disposal Group, Held-for-Sale or Disposed of by Sale, Not Discontinued Operations [Member] Noncontrolling Interest [Abstract] Corporate bonds, at par value Corporate Bonds, At Part Value [Member] Corporate Bonds, At Part Value Related Party Entities Related Party Entities [Member] Related Party Entities ARL American Realty Investors, Inc. [Member] American Realty Investors, Inc. Equity Awards Adjustments Equity Awards Adjustments [Member] Total liabilities and equity Liabilities and Equity Deferred tax assets Deferred Tax Assets, Net Employee Stock Option Share-Based Payment Arrangement, Option [Member] Noncontrolling interests Equity, Attributable to Noncontrolling Interest Schedule of Future Rental Payments Under Non-Cancelable Leases Lessor, Operating Lease, Payment to be Received, Maturity [Table Text Block] Segments [Axis] Segments [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Related Party [Domain] Related and Nonrelated Parties [Domain] Schedule of Notes Receivable Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Tabular List, Table Tabular List [Table Text Block] Additional paid-in capital Additional Paid in Capital Residences at Holland Lake Residences at Holland Lake [Member] Residences at Holland Lake Total Shareholders' Equity Parent [Member] Name Awards Close in Time to MNPI Disclosures, Individual Name Real Estate Properties [Line Items] Real Estate Properties [Line Items] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] General and administrative (including $1,044 and $1,057 for the three months ended June 30, 2026 and 2025, respectively, and $2,047 and $2,059 for the six months ended June 30, 2026 and 2025, respectively, from related parties) General and administrative General and administrative General and Administrative Expense Long-Lived Asset, Class [Domain] Long-Lived Asset, Class [Domain] Preferred stock, authorized (in shares) Preferred Stock, Shares Authorized Parc at Denham Springs Parc at Denham Springs [Member] Parc at Denham Springs Preferred stock, Series A, $2.00 par value, 15,000,000 shares authorized, 900,614 shares issued and outstanding Preferred Stock, Value, Issued Adjustment to Compensation: Adjustment to Compensation [Axis] Number of real estate properties Number of Real Estate Properties Merano Merano [Member] Merano Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activity Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Extension term (in years) Debt Instrument, Extension Term Debt Instrument, Extension Term Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Parc at Ingleside Parc at Ingleside [Member] Represents member related to Parc at Ingleside. Name Measure Name Income Taxes Income Tax Disclosure [Text Block] Pay vs Performance Disclosure [Line Items] Debt Instrument [Line Items] Debt Instrument [Line Items] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Paid-in Capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Short-term investments Short-term investments Short-Term Investments Commercial Segment Commercial Segments [Member] Information about the segment. Interest receivable Interest Receivable Name Trading Arrangement, Individual Name Cash and cash equivalents Cash and Cash Equivalent Company Selected Measure Amount Company Selected Measure Amount Income tax receivable Income Taxes Receivable Equity Method Investments and Joint Ventures [Abstract] Equity Method Investments and Joint Ventures [Abstract] Investments, Debt and Equity Securities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization Mountain Creek Mountain Creek [Member] Mountain Creek SOFR Secured Overnight Financing Rate (SOFR) [Member] Income tax (benefit) provision Federal Income Tax Expense (Benefit), Continuing Operations Entity Address, Address Line Two Entity Address, Address Line Two Land development costs Land Available for Development Net (loss) income Net (loss) income Net (loss) income Net (loss) income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Real Estate [Abstract] Real Estate [Abstract] Proceeds from sale of assets Proceeds from Sale, Real Estate, Held-for-Investment Number of extension options Debt Instrument, Number Of Extension Options Debt Instrument, Number Of Extension Options Ocean Estates II Ocean Estates II [Member] Ocean Estates II Non-PEO NEO Non-PEO NEO [Member] Entity Address, Address Line One Entity Address, Address Line One Redemption and/or maturity of short-term investments Proceeds from Sale, Maturity and Collection of Short-Term Investments Income tax benefit Income tax benefit Income Tax Expense (Benefit) Award Timing Method Award Timing Method [Text Block] Net decrease in cash, cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Repairs and maintenance Repairs And Maintenance [Member] Repairs And Maintenance 2028 Lessor, Operating Lease, Payment to be Received, Year Two Net (loss) income attributable to common shares Net Income (Loss) Attributable to Parent Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] VAA Corporate Joint Venture [Member] Statement [Table] Statement [Table] Restatement Determination Date: Restatement Determination Date [Axis] Regis Regis [Member] Regis Interest income (including $1,393 and $1,892 for the three months ended June 30, 2026 and 2025, respectively, and $3,163 and $3,791 for the six months ended June 30, 2026 and 2025, respectively, from related parties) Interest income Investment Income, Interest Thereafter Lessor Operating Lease, Payments To Be Received, After Year Four Lessor Operating Lease, Payments To Be Received, After Year Four Schedule of Other Assets Schedule of Other Assets [Table Text Block] Revenues: Revenues [Abstract] Current Current Federal Tax Expense (Benefit) Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block]