Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Riverview on the Park Land, LLC Riverview on the Park Land, LLC [Member] Represents member related to Riverview on the Park Land, LLC. Trading Arrangement: Trading Arrangement [Axis] Maximum Maximum [Member] Statistical Measurement [Domain] Statistical Measurement [Domain] Properties In Lease-up Properties In Lease-up [Member] Properties In Lease-up Title of 12(b) Security Title of 12(b) Security Subsequent Event Subsequent Event [Member] Document Fiscal Year Focus Document Fiscal Year Focus Adjustment to Compensation, Amount Adjustment to Compensation Amount Financial Instrument [Axis] Financial Instrument [Axis] Real Estate [Line Items] Real Estate [Line Items] Segment Reporting [Abstract] Segment Reporting [Abstract] 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 Number of extension options Debt Instrument, Number Of Extension Options Debt Instrument, Number Of Extension Options Common stock, $0.01 par value, 10,000,000 shares authorized; 8,639,316 shares issued and outstanding Common Stock, Value, Issued TCI TCI [Member] TCI One Realco Land Holding, Inc. One Realco Land Holding, Inc [Member] Represents member related to One Realco Land Holding, Inc. Restatement Determination Date Restatement Determination Date Interest rate Financing Receivable, Interest Rate Financing Receivable, Interest Rate Shares outstanding (in shares) Noncontrolling Interest, Number Of Common Stock Shares Outstanding Noncontrolling Interest, Number Of Common Stock Shares Outstanding Notes Receivable Financing Receivables [Text Block] Amendment Flag Amendment Flag Provision (recovery) for bad debts Accounts Receivable, Credit Loss Expense (Reversal) Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding 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 Less accumulated depreciation Real Estate Investment Property, Accumulated Depreciation Short-term Investments Investment [Text Block] Other property expenses Cost of Other Property Operating Expense Loss Contingencies [Table] Loss Contingencies [Table] 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] Northside on Travis Northside on Travis [Member] Northside on Travis 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 Basic (in shares) Weighted-average common shares outstanding — basic (in shares) Weighted Average Number of Shares Outstanding, Basic Bandera Ridge Bandera Ridge [Member] Bandera Ridge Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Notes Receivable Notes Receivable [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] 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 Villas of Park West II Villas of Park West II [Member] Villas of Park West II Entity Address, City or Town Entity Address, City or Town Pending Litigation Pending Litigation [Member] Receivables [Abstract] Receivables [Abstract] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Property Under Development Property Under Development [Member] Property Under Development 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] Investment interest rate Investment Interest Rate 2029 Lessor, Operating Lease, Payment to be Received, Year Three Parc at Denham Springs II Parc at Denham Springs II [Member] Parc at Denham Springs II Name of Property [Axis] Name of Property [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Extension term Debt Instrument, Extension Term Debt Instrument, Extension Term Legacy at Pleasant Grove Legacy at Pleasant Grove [Member] Legacy at Pleasant Grove Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Litigation Case [Axis] Litigation Case [Axis] Land Land [Member] Schedule of Profit by Reportable Segment Segment Reporting [Table Text Block] Noncontrolling Interest Noncontrolling Interest [Member] Development fees paid Development Fees Paid Development Fees Paid Related Party [Axis] Related and Nonrelated Parties [Axis] Noncontrolling Interests Noncontrolling Interest Disclosure [Text Block] Mortgages and other notes payable Long-Term Debt Other Assets [Table] Other Assets [Table] Other Assets Regis Realty Prime, LLC Regis Realty Prime, LLC [Member] Regis Realty Prime, LLC Villas of Park West I Villas of Park West I [Member] Villas of Park West I 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] Security Exchange Name Security Exchange Name Prospectus Endeavors Prospectus Endeavors [Member] Prospectus Endeavors Schedule of Reconciliation of Revenue from Segments to Consolidated 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 Lease Revenue Lessor, Operating Leases [Text Block] Steeple Crest Steeple Crest [Member] Represents member related to steeple crest. Other Assets [Line Items] Other Assets [Line Items] Other Assets Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Repairs and maintenance Cost of Property Repairs and Maintenance Acres of developed and undeveloped land Area of Land Entity Shell Company Entity Shell Company Consolidation Items [Domain] Consolidation Items [Domain] Mortgages and other notes payable Mortgages [Member] Earnings Per Share Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Vista Ridge Vista Ridge [Member] Vista Ridge Earnings Per Share [Abstract] Earnings Per Share [Abstract] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Tenant and other receivables Tenant and Other Receivables Tenant and Other Receivables Document Fiscal Period Focus Document Fiscal Period Focus Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Segment expenses General and Administrative Expense [Abstract] Total liabilities Liabilities Trading Symbol Trading Symbol ARL ARL American Realty Investors, Inc. [Member] American Realty Investors, Inc. 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 - basic and diluted Weighted Average Number of Shares Outstanding, Basic [Abstract] Company Selected Measure Name Company Selected Measure Name Income Tax Disclosure [Abstract] 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. Forest Pines Forest Pines [Member] Information by name of property. Ownership interest (as percent) Subsidiary, Ownership Percentage, Parent Ownership interest if note converted Financing Receivable, Convertible, Conversion Feature, Ownership Interest Financing Receivable, Convertible, Conversion Feature, Ownership Interest 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 Individual: Individual [Axis] Diluted (in shares) Weighted-average common shares outstanding — diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Gain on sale or write-down of assets, net Gain on sale or write down of assets Gain (Loss) on Sale of Assets and Asset Impairment Charges 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 Related party receivable Increase (Decrease) in Accounts Receivable, Related Parties Revenue from Contract with Customer [Abstract] Receivables from related party Other Receivables Lake Shore Villas Lake Shore Villas [Member] Lake Shore Villas 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] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Area of property (sq. ft.) Area of Real Estate Property Litigation Status [Domain] Litigation Status [Domain] All Executive Categories All Executive Categories [Member] MRHI May Realty Holdings, Inc. [Member] May Realty Holdings, Inc. Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Depreciation Depreciation Regis Regis [Member] Regis Schedule of Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Proceeds from mortgages and other notes payable Proceeds From Mortgages, Notes and Bonds Payable Proceeds From Mortgages, Notes and Bonds Payable 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 Real Estate [Table] Real Estate [Table] Thereafter Lessor, Operating Lease, Payment To Be Received, After Year Four Lessor, Operating Lease, Payment To Be Received, After Year Four Liabilities: Liabilities [Abstract] Restricted cash Restricted Cash and Cash Equivalent 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] Schedule of Real Estate Properties [Table] Real Estate Property, Ownership [Table] Nonrelated Party Nonrelated Party [Member] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] 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] Segment Reporting [Line Items] Segment Reporting [Line Items] Document Quarterly Report Document Quarterly Report Timbers at The Park Timbers at The Park [Member] Timbers at The Park 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] Parc at Denham Springs Parc at Denham Springs [Member] Parc at Denham Springs Mortgages and Other Notes Payable Debt Disclosure [Text Block] Accrued interest Interest Payable Notes receivable (including $55,032 and $57,468 at June 30, 2026 and December 31, 2025, respectively, from related parties) Notes receivable Carrying value Financing Receivable, after Allowance for Credit Loss Shares acquired (in shares) Noncontrolling Interest, Additional Number Of Common Stock Shares Acquired Noncontrolling Interest, Additional Number Of Common Stock Shares Acquired Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Lease Contractual Term [Axis] Lease Contractual Term [Axis] Real Estate Activity Real Estate Disclosure [Text Block] Related Party Entities Related Party Entities [Member] Related Party Entities Equity Component [Domain] Equity Component [Domain] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Total operating expenses Costs and Expenses Adoption Date Trading Arrangement Adoption Date UHF and Pillar UHF and Pillar [Member] UHF and Pillar Interest Rate Debt Instrument, Interest Rate, Stated Percentage Counterparty Name [Domain] Counterparty Name [Domain] Total shareholders' equity Equity, Attributable to Parent Spyglass of Ennis Spyglass of Ennis [Member] Represents member related to Spyglass of Ennis. Less discount Short-Term Investments, Unamortized Discount (Premium) Short-Term Investments, Unamortized Discount (Premium) 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 Multifamily Segment Multifamily Segment [Member] Represents member related to multi family segment. Accounting Policies [Abstract] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Insider Trading Policies and Procedures [Line Items] Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Pillar and Regis Pillar and Regis [Member] Pillar and Regis Realty Advisors, Inc. Realty Advisors, Inc. [Member] Realty Advisors, Inc. 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 Operating Lease, Lease Income Number of operating segments Number of Operating Segments Redemption and/or maturity of short-term investments Proceeds from Sale of Short-Term Investments 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 Mountain Creek Mountain Creek [Member] Mountain Creek Income Statement [Abstract] Income Statement [Abstract] Equity Equity, Attributable to Parent [Abstract] Document Transition Report Document Transition Report Ownership [Axis] Ownership [Axis] Deferred Income Deferred Gain on Sale of Property [Text Block] Deferred Gain on Sale of Property 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] EQK Portage EQK Portage - Land [Member] EQK Portage - Land Building and improvements Investment Building and Building Improvements Variable interest rate Debt Instrument, Basis Spread on Variable Rate City Area Code City Area Code Blue Lake Villas Blue Lake Villas [Member] Blue Lake Villas All Individuals All Individuals [Member] Subsequent Events Subsequent Events [Text Block] 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 Plaza at Chase Oaks Plaza at Chase Oaks [Member] Plaza at Chase Oaks Entity [Domain] Entity [Domain] Plum Tree Plum Tree [Member] Represents member related to Plum Tree. Kensington Park Kensington Park [Member] Kensington Park Operating segments Operating Segments [Member] Purchase of non-controlling interest 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, to related parties) Accounts payable and other liabilities Accounts Payable and Other Accrued Liabilities Other assets Increase (Decrease) in Other Operating Assets Earnings per share - basic and diluted Earnings Per Share Basic and Diluted (EPS) [Abstract] Earnings Per Share Basic and Diluted (EPS) PEO PEO [Member] Option to purchase developed lots, number of lots Option to Purchase Developed Lots, Number of Lots Option to Purchase Developed Lots, Number of Lots Deferred revenue Deferred Gain on Sale of Property Tenant improvements Tenant Improvements Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Purchase of IOR shares Payments For Repurchase Of Equity By Noncontrolling Interest Payments For Repurchase Of Equity By Noncontrolling Interest Subsequent Event Type [Domain] Subsequent Event Type [Domain] Developed and undeveloped land Land and Land Improvements [Member] Retained Earnings Retained Earnings [Member] BT Cole Two BT Cole Two [Member] BT Cole Two 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 Ocean Estates II Ocean Estates II [Member] Ocean Estates II Diluted (in dollars per share) EPS - attributable to common shares — diluted (in dollars per share) Earnings Per Share, Diluted Entity Current Reporting Status Entity Current Reporting Status Net cash provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Windmill Farms Windmill Farms [Member] Windmill Farms Total Shareholder Return Amount Total Shareholder Return Amount Variable component Operating Lease, Variable Lease Income IOR Income Opportunity Realty Investors, Inc. [Member] Income Opportunity Realty Investors, Inc. Litigation Case [Domain] Litigation Case [Domain] Parc at Opelika Phase II Parc at Opelika Phase II [Member] Parc at Opelika Phase II Autumn Breeze Autumn Breeze [Member] Represents member related to Autumn Breeze. Ownership [Domain] Ownership [Domain] Lease Contractual Term [Domain] Lease Contractual Term [Domain] 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] Shares issued (in shares) Noncontrolling Interest, Additional Number Of Common Stock Shares Issued Noncontrolling Interest, Additional Number Of Common Stock Shares Issued 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] Other income Other Income Purchase of IOR shares Stock Repurchased During Period, Value Forest Grove Forest Grove [Member] Forest Grove 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 Interest payable Increase (Decrease) in Interest Payable, Net Depreciation and amortization Depreciation and amortization Cost, Depreciation and Amortization Development costs Oil and Gas, Cost Incurred, Development Cost Bellwether Ridge Bellwether Ridge [Member] Represents member related to Bellwether Ridge. Lease term (in years) Lessor, Operating Lease, Term of Contract Segment Reporting [Table] Segment Reporting [Table] Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Table] Multifamily 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 Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount 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] Pillar Pillar [Member] Pillar Land lot development costs Real Estate, Land Lot Development Costs Real Estate, Land Lot Development Costs Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Common stock, issued (in shares) Common Stock, Shares, Issued Measure: Measure [Axis] Inwood on the Park Inwood on the Park [Member] Inwood on the Park Construction in progress Development in Process Other Assets Other Assets Disclosure [Text Block] Equity Components [Axis] Equity Components [Axis] Related Party Related Party [Member] Entity Interactive Data Current Entity Interactive Data Current Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] Net income attributable to noncontrolling interest Net income attributable to noncontrolling interest Net Income (Loss) Attributable to Noncontrolling Interest Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Entity Small Business Entity Small Business Termination Date Trading Arrangement Termination Date Noncontrolling Interest [Table] Noncontrolling Interest [Table] Subsequent Events [Abstract] Subsequent Events [Abstract] 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] Merano Merano [Member] Merano Document Type Document Type Fair Value as of Grant Date Award Grant Date Fair Value Dominion at Mercer Crossing Dominion At Mercer Crossing [Member] Dominion At Mercer Crossing 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 Polk County Land Polk Country Land [Member] Polk Country Land Parc at Windmill Farms Parc at Windmill Farms [Member] Represents member related to Parc at Windmill Farms. 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] 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] 2030 Lessor, Operating Lease, Payment to be Received, Year Four 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] Ownership interest Subsidiary, Ownership Percentage, Noncontrolling Owner PEO Name PEO Name Total Lessor, Operating Lease, Payment to be Received ABC Paradise, LLC ABC Paradise, LLC [Member] Represents member realated to ABC Paradise, LLC. Total real estate Real Estate Investments, Net Cash paid for taxes Income Tax Paid, before Refund Received Other assets (including $1,030 and $1,259 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 Interest Expense, Debt Prepaid expenses and other assets Prepaid Expense and Other Assets Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] 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] McKinney Ranch McKinney Ranch [Member] McKinney Ranch Subsequent Event [Table] Subsequent Event [Table] Demand notes Demand Notes [Member] Demand Notes Land Land Schedule of Mortgages and Other Notes Payable Schedule of Debt [Table Text Block] 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 Statistical Measurement [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Exchange share (in shares) Noncontrolling Interest, Exchange Rate Noncontrolling Interest, Exchange Rate 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) Commercial Segment Commercial Segments [Member] Information about the segment. Short Term Investment [Table] Short Term Investment [Table] Short Term Investment 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] Short Term Investment [Line Items] Short Term Investment [Line Items] Short Term Investment [Line Items] 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] Residences at Holland Lake Residences at Holland Lake [Member] Residences at Holland Lake Schedule of Rental Revenue Operating Lease, Lease Income [Table Text Block] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Organization Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Cover [Abstract] Cover [Abstract] Noncontrolling Interest [Abstract] Landing on Bayou Cane Landing on Bayou Cane [Member] Landing on Bayou Cane Commercial properties Commercial Properties [Member] Real estate held designated as commercial property. Equity Awards Adjustments Equity Awards Adjustments [Member] Total liabilities and equity Liabilities and Equity Payments on mortgages and other notes payable Repayment Of Mortgage And Other Notes Payable Repayment Of Mortgage And Other Notes Payable Employee Stock Option Share-Based Payment Arrangement, Option [Member] Noncontrolling interest Equity, Attributable to Noncontrolling Interest Schedule of Future Rental Payments 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 Total Shareholders' Equity Parent [Member] Accrued development costs Development Costs Incurred But Not Yet Paid Development Costs Incurred But Not Yet Paid 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 $1,011 and $1,025 for the three months ended June 30, 2026 and 2025, respectively, and $1,983 and $1,996 for the six months ended June 30, 2026 and 2025, respectively, from related parties) General and administrative General and administrative General and Administrative Expense Blue Lake Villas Phase II Blue Lake Villas Phase II [Member] Blue Lake Villas Phase II Adjustment to Compensation: Adjustment to Compensation [Axis] Number of real estate properties Number of Real Estate Properties Parc at Ingleside Parc at Ingleside [Member] Represents member related to Parc at Ingleside. 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] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Name Measure Name Income Taxes Income Tax Disclosure [Text Block] Pay vs Performance Disclosure [Line Items] Properties In Operation Properties In Operation [Member] Properties In Operation Debt Instrument [Line Items] Debt Instrument [Line Items] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Additional Paid-in Capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Short-term investments Short-term investments Short-Term Investments Spartan Land Spartan Land [Member] Spartan Land Interest receivable Interest Receivable Name Trading Arrangement, Individual Name Cash and cash equivalents Cash and Cash Equivalent Chelsea Chelsea [Member] Chelsea Company Selected Measure Amount Company Selected Measure Amount Income tax receivable Income Taxes Receivable Corporate bonds, at par value Corporate Bonds, At Par Value [Member] Corporate Bonds, At Par Value Investments, Debt and Equity Securities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization RCM HC Enterprises RCM HC Enterprises [Member] RCM HC Enterprises Income tax benefit (provision) Federal Income Tax Expense (Benefit), Continuing Operations ABC Land and Development, Inc. ABC Land and Development, Inc. [Member] Represents member realated to ABCL and development. Entity Address, Address Line Two Entity Address, Address Line Two 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 Non-PEO NEO Non-PEO NEO [Member] Entity Address, Address Line One Entity Address, Address Line One Income tax benefit (provision) Income tax benefit (provision) 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 Tuscany Villas Tuscany Villas [Member] Tuscany Villas Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] 2028 Lessor, Operating Lease, Payment to be Received, Year Two Schedule of Gain on Sale or Write-down of Assets Schedule Of Gain Loss On Sale Or Write-down Of Assets [Table Text Block] Schedule Of Gain Loss On Sale Or Write-down Of Assets Net (loss) income attributable to the Company Net Income (Loss) Attributable to Parent Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Statement [Table] Statement [Table] Restatement Determination Date: Restatement Determination Date [Axis] Interest income (including $1,848 and $2,521 for the three months ended June 30, 2026 and 2025, respectively, and $4,297 and $5,038 for the six months ended June 30, 2026 and 2025, respectively, from related parties) Interest income Investment Income, Interest Property tax and insurance Insurance Tax Schedule of Other Assets Schedule of Other Assets [Table Text Block] Revenues: Revenues [Abstract] Alera Alera [Member] Alera Current Current Federal Tax Expense (Benefit) District receivables Reimbursable Infrastructure Receivables Windmill Farms Infrastructure Receivables Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block]