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Net Cash Provided By Used In Investing Activities Discontinued Operations [Abstract] Discontinued operations: Major Property Class [Domain] Major Property Class Noncash adjustment to gain on sale of discontinued operations from investing activities. Noncash Adjustment To Gain On Sale Of Discontinued Operations From Investing Activities Noncash adjustment to loss on sale of discontinued operations Period for advance receipt of percentage of gross revenue on leases. Period For Advance Receipt Of Percentage Of Gross Revenue On Leases Period for advance receipt of percentage of gross revenue on leases Environmental remediation accrual, discontinued operations (Note 9) Disposal Group, Including Discontinued Operation, Liabilities Disposal Group, Including Discontinued Operation, Liabilities, Total Environmental remediation liability Subsequent Events [Text Block] Subsequent events Dividends Payable, Date of Record Dividend record date Debt Securities, Available-for-Sale [Table] Disposal Groups, Including Discontinued Operations [Table] Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Table] Threshold parking revenue per month for scheduled rental payments by lessee. Threshold Parking Revenue Per Month For Scheduled Rental Payments By Lessee Threshold parking revenue per month for scheduled rental payments by lessee Liabilities and Equity Total liabilities and shareholders' equity Entity Address, State or Province Entity Address, State or Province Income taxes Increase (Decrease) in Income Taxes Payable, Net of Income Taxes Receivable Trading Symbol Trading Symbol Major Property Class [Axis] Major Property Class Common Stock, Shares, Issued Common stock, shares issued Debt Securities, Available-for-Sale [Line Items] Deferred Tax Liabilities, Property, Plant and Equipment Property having a financial statement basis in excess of tax basis Entity Address, City or Town Entity Address, City or Town Debt Disclosure [Text Block] Note Payable - Revolving Credit Line Disposal Group Name [Axis] Disposal Group Name Subsequent Event [Member] Subsequent Event [Member] Subsequent Event Type [Axis] Carrying value as of the balance sheet date of deposits and prepaid rent. Deposits And Prepaid Rent Deposits and prepaid rent Schedule of Operating Leased Assets [Table] Schedule Of Operating Leased Assets [Table] Percentage of revenue receivable due in proportion of gross revenue of electronic billboard. Percentage Of Revenue Receivable Due In Proportion Of Gross Revenue Of Electronic Billboard Percentage of revenue due in proportion of gross revenues from each electronic billboard Lender Name [Axis] Lender Name Lease expiration year. Lease Expiration Year Lease expiration year Debt Instrument, Maturity Date Maturity date Properties and equipment (net of accumulated depreciation) (Note 4) Property, Plant and Equipment, Net Properties and equipment net Dividends Payable, Date Declared Dividend declared date Number of long term land leases which have completed construction of improvements Number of Long Term Land Leases Which Have Completed Construction of Improvements Number of long term land leases which have completed construction of improvements. Entity Central Index Key Entity Central Index Key Other Liabilities Disclosure [Abstract] Cash used to settle obligations. Cash Used To Settle Obligations Cash used to settle obligations Entity Tax Identification Number Entity Tax Identification Number Income from continuing operations before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Changes in assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Number of parcels upon which improvements have been completed. Number Of Parcels Upon Which Improvements Have Been Complete Number of parcels upon which improvements have been completed Employee-related Liabilities Accrued payroll and related costs Employee-related Liabilities, Total Line of Credit Facility [Table] Line Of Credit Facility [Table] Revenue Operating Lease, Lease Income Leasing revenue Operating Lease, Lease Income, Total Assets Total assets Line of Credit Facility [Line Items] Line Of Credit Facility [Line Items] Entity Registrant Name Entity Registrant Name Percentage of revenue in excess of threshold parking revenue. Percentage Of Revenue In Excess Of Threshold Parking Revenue Percentage of revenue in excess of threshold parking revenue Retained Earnings (Accumulated Deficit) Retained earnings, ending Retained earnings, beginning Retained earnings Retained Earnings (Accumulated Deficit), Total Property Subject to or Available for Operating Lease [Axis] Property Subject to or Available for Operating Lease Supplemental disclosures: Supplemental Cash Flow Information [Abstract] Deferred Income Tax Liabilities, Net Deferred income taxes, net Deferred tax liabilities, net of deferred tax assets Minimum [Member] Minimum [Member] Revenue Revenues Revenues, Total Increase decrease in accrued property taxes and property tax expense. Increase Decrease In Accrued Property Taxes And Property Tax Expense Increase decrease in accrued property taxes and property tax expense Environmental Remediation Expense, before Recovery Costs incurred related to environmental remediation Deferred tax liabilities insurance premiums. Deferred Tax Liabilities Insurance Premiums Insurance premiums Loss Contingency, Estimate of Possible Loss Estimate of possible loss Percentage of interest on unpaid balance Percentage Of Interest on Unpaid Balance Percentage of interest on unpaid balance. Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile income from continuing operations to net cash provided by operating activities, continuing operations: Debt Disclosure [Abstract] Debt Instrument, Basis Spread on Variable Rate Interest rate Building and Building Improvements [Member] Building and Improvements, Steeple Street [Member] Entity Current Reporting Status Entity Current Reporting Status Common Stock, Shares Authorized Common stock, shares authorized Deferred Tax Liabilities, Gross Gross deferred tax liabilities Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Basis of presentation and summary of significant accounting policies Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Discontinued operations Assets [Abstract] ASSETS Common Stock, Value, Issued Class A common stock, $.01 par; authorized 10,000,000 shares; issued and outstanding 6,599,912 shares Class A common stock Current Fiscal Year End Date Current Fiscal Year End Date Deferred Income Tax Expense (Benefit) Deferred Deferred income taxes Deferred Income Tax Expense (Benefit), Total Real property taxes and operating expense associated with its operation. Real Property Taxes And Operating Expense Associated With Its Operation Real property taxes and operating expense associated with its operation Income tax benefit Income Tax Expense (Benefit) Total Income tax expense Nature of Operations [Text Block] Description of business Disposal Group Name [Domain] Disposal Group Name BankRI. B Ank R I [Member] BankRI [Member] Schedule Of Accounting Policies [Table] Schedule Of Accounting Policies [Table] Schedule Of Accounting Policies [Table] Property, Plant and Equipment [Abstract] Period to recognize specified lease revenue. Period To Recognize Specified Lease Revenue Period to recognize specified lease revenue Property, Plant, and Equipment, Lessor Asset under Operating Lease, before Accumulated Depreciation Properties on lease or held for lease, gross Operating Lease, Lease Income, Lease Payments Excess of straight-line rentals over contractual payments Subsequent Events [Abstract] Land improvements On lease or held for lease member. Land Improvements On Lease Or Held For Lease [Member] Land Improvements on Lease or Held for Lease [Member] Supplemental Deferred Purchase Price Reduced sales price Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Deferred Rent Prepaid rent Depreciation Depreciation Depreciation, Total Liabilities [Abstract] Liabilities: Equity, Attributable to Parent [Abstract] Shareholders’ equity: Loss Contingency Nature [Axis] Loss Contingency Nature Line of Credit Facility, Maximum Borrowing Capacity Revolving credit line, maximum borrowing capacity Lessor, Operating Lease, Term of Contract Term of leases Number of advertising location leased. Number Of Advertising Location Leased Number of advertising locations Terminal. Terminal [Member] Terminal [Member] Lessor, Operating Leases [Text Block] Description of Leasing Arrangements Sale of petroleum segment. Sale Of Petroleum Segment [Member] Sale of Petroleum Segment [Member] Total basic income per common share Total basic income per common share Basic income per common share based upon 6,599,912 shares outstanding Earnings Per Share, Basic Amount of contingent rental revenue recognized for the period under lease. Operating Leases Income Statement Contingent Rental Revenue Contingent revenue from leasing of parcel of land Dividends on common stock based on 6,599,912 shares outstanding Dividends, Common Stock, Stock Income Statement [Abstract] Investments Investments Investments, Total Property, Plant and Equipment Disclosure [Text Block] Properties and equipment Statistical Measurement [Domain] Statistical Measurement Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Net cash provided by operating activities, continuing operations Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent Income from continuing operations Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent, Total First Mortgage [Member] Property [Member] Document Period End Date Document Period End Date Statistical Measurement [Axis] Statistical Measurement The amount of real property taxes attributable to Company land paid by tenants. Estimated Real Property Taxes Attributable To Company Land Estimated real property taxes attributable to the company land Loss Contingency, Nature [Domain] Loss Contingency, Nature Additional Paid in Capital, Common Stock Capital in excess of par US Treasury Securities [Member] U.S. Treasury Securities [Member] Components of Deferred Tax Assets and Liabilities [Abstract] Consolidation, Policy [Policy Text Block] Principles of consolidation Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Interactive Data Current Entity Interactive Data Current Credit Facility [Domain] Credit Facility Reclassification of Prior Period [Member] Revision of Prior Period, Adjustment [Member] Revision of Prior Period [Axis] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Basic income (loss) per common share based upon 6,599,912 shares outstanding: Earnings Per Share, Basic [Abstract] Other Liabilities Disclosure [Text Block] Liabilities, other Income tax payable Accrued Income Taxes Accrued Income Taxes, Total Investments, Debt and Equity Securities [Abstract] Local Phone Number Local Phone Number Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Line of Credit Facility, Covenant Terms Revolving credit line, covenant terms Statement of Cash Flows [Abstract] The Company's maximum additional cost obligation pursuant to the letter agreement. Entities Maximum Additional Obligation Maximum additional obligation Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Properties on lease or held for lease steeple street property. Properties On Lease Or Held For Lease Steeple Street Property [Member] Steeple Street Property [Member] Common Stock, Par or Stated Value Per Share Common stock, par value Accrued Professional Fees Accrued professional fees Maximum [Member] Maximum [Member] Cash flows used in financing activities, payment of dividends Payments of Dividends Payments of Dividends, Total Line of Credit Facility, Collateral Revolving credit line, collateral, description Deferred Tax Assets, Gross [Abstract] Gross deferred tax assets: Increase (decrease) in cash and cash equivalents Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Loss on sale of discontinued operation Loss on Sale of Discontinued Operation Loss on sale of discontinued operation. City Area Code City Area Code Net Cash Provided by (Used in) Operating Activities [Abstract] Cash flows from operating activities: Property, Plant, and Equipment, Lessor Asset under Operating Lease [Table Text Block] Properties and Equipment Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Investments Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Less accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Total Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance General and administrative expense General and Administrative Expense General and administrative General and Administrative Expense, Total Weighted Average Number of Shares Outstanding, Basic Weighted Average Number of Shares Outstanding, Basic, Total Basic income per common share, shares outstanding Prepaid Taxes Prepaid income taxes Environmental incident nineteen ninety four. Environmental Incident Nineteen Ninety Four [Member] Environmental Incident 1994 [Member] Document Fiscal Period Focus Document Fiscal Period Focus SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Loan Category [Axis] SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Loan Category Percentage of annual increment in base rent of lease. Percentage Of Annual Increment In Base Rent Of Lease Annual increment in base rent of lease, percentage Number of long term land leases with contingent rent receivable. Number Of Long Term Land Leases With Contingent Rent Receivable Number of long-term land leases with contingent rent receivable Subsequent Event [Line Items] Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Deferred Tax Assets and Liabilities Sharing arrangement percentage. Sharing Arrangement Percentage Sharing arrangement percentage Schedule of accounting policies. Schedule Of Accounting Policies [Line Items] Schedule Of Accounting Policies [Line Items] Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value, Total Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Fair Value of Financial Instruments, Policy [Policy Text Block] Fair value of financial instruments Operating Leased Assets [Line Items] Operating Leased Assets [Line Items] Discontinued Operations and Disposal Groups [Abstract] Cover [Abstract] Document Fiscal Year Focus Document Fiscal Year Focus Income Taxes Paid, Net Cash paid for income taxes Income Taxes Paid, Net, Total Metropark, Ltd. Metropark Ltd [Member] Metropark Ltd [Member] Deferred income taxes, discontinued operations Disposal Group, Including Discontinued Operation, Deferred Tax Assets Operating Costs and Expenses Operating Operating Costs and Expenses, Total Percentage of obligation on cost in excess of actual cost. Percentage Of Obligation On Cost In Excess Of Actual Cost Percentage of obligation on cost in excess of actual cost Entity Emerging Growth Company Entity Emerging Growth Company Title of 12(g) Security Title of 12(g) Security Amendment Flag Amendment Flag Income tax expense: Income Tax Expense (Benefit), Continuing Operations [Abstract] Deferred Tax Liabilities, Gross [Abstract] Gross deferred tax liabilities: Accrual for Taxes Other than Income Taxes Property taxes Leases [Abstract] Accrual for Environmental Loss Contingencies, Period Increase (Decrease) Accrual for environmental loss contingencies, period increase Accrual for Environmental Loss Contingencies, Period Increase (Decrease), Total Variable Rate [Domain] Variable Rate Deferred tax assets accrued property taxes. Deferred Tax Assets Accrued Property Taxes Accrued property taxes Securities Act File Number Entity File Number Deferred Tax Assets, Gross Gross deferred tax assets Deferred Tax Assets, Gross, Total Other Liabilities Other Liabilities, other Payment receivable in each quarterly installment Lessor Operating Lease Payments To Be Received In Each Installment Lessor operating lease payments to be received in each installment. Disposal Group Classification [Domain] Disposal Group Classification Number of quarterly installments Number of Quarterly Installments Number of quarterly installments. Property Subject to or Available for Operating Lease [Domain] Property Subject to or Available for Operating Lease Costs and Expenses Total expenses Number of wholly owned subsidiaries. Number Of Wholly Owned Subsidiaries Number of wholly owned subsidiaries Entity Small Business Entity Small Business SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Loan Category [Domain] SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Loan Category Entity Shell Company Entity Shell Company Purchase of investments Payments to Acquire Investments, Total Payments to Acquire Investments Entity Address, Address Line One Entity Address, Address Line One Deferred tax liabilities accounts receivable. Deferred Tax Liabilities Accounts Receivable Accounts receivable Environmental Exit Costs, Costs Accrued to Date Environmental remediation Amount of deferred tax liability attributable to taxable temporary differences from insurance premiums and accrued leasing revenues. Deferred Tax Liabilities Insurance Premiums And Accrued Revenues Insurance premiums and accrued leasing revenues Subsequent Event Type [Domain] Lamar lease. Lamar Lease [Member] Lamar Lease [Member] Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities Accounts payable and accrued expenses Disposal group including discontinued operation actual cost of project. Disposal Group Including Discontinued Operation Actual Cost Of Project Actual cost of the project Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender Deb service coverage ratio. Debt Service Coverage Ratio Debt service coverage ratio Number of long term land leases. Number Of Long Term Land Leases Number of long-term land leases Net Cash Provided by (Used in) Investing Activities [Abstract] Cash flows from investing activities: Long-Term Line of Credit Advances made under line Long-Term Line of Credit, Total Subsequent Event [Table] Common Stock, Dividends, Per Share, Declared Dividends on common stock, per share Rentable area (in square feet) Net Rentable Area Other Sundry Liabilities Other Other Sundry Liabilities, Total Cash and Cash Equivalents [Axis] Common Stock, Shares, Outstanding Common stock, shares outstanding Common Stock, Shares, Outstanding, Beginning Balance Common Stock, Shares, Outstanding, Ending Balance Investment security maturity date. Investment Security Maturity Date Investment maturity date Other Liabilities [Table Text Block] Summary of Liabilities, Other Notice period for termination of lease. Notice Period For Termination Of Lease Notice period of lease Land and Land Improvements on Lease or Held for Lease [Member] Properties on lease or held for lease, land and land improvements. Properties On Lease Or Held For Lease Land And Land Improvements [Member] Document Type Document Type Line of Credit [Member] Line [Member] Investment Interest Rate Investment interest rate Line of Credit Facility, Interest Rate Description Interest rate, description Net cash used in investing activities Cash used in investing activities Net Cash Provided by (Used in) Investing Activities Document Quarterly Report Document Quarterly Report Prepaid Expense and Other Assets Prepaid and other Disposal Group Classification [Axis] Disposal Group Classification Entity Filer Category Entity Filer Category Proceeds from Rents Received Cash collections under rent Variable Rate [Axis] Variable Rate Triple net lease. Triple Net Lease [Member] Triple Net Lease [Member] Liabilities Total liabilities Property, Plant and Equipment [Table] Schedule Of Property Plant And Equipment [Table] Debt Instrument, Description of Variable Rate Basis Variable rate basis Termination of parcel twenty lease. Termination Of Parcel Twenty Lease [Member] Termination of Parcel 20 Lease [Member] Equity, Attributable to Parent Total shareholders' equity Shareholders' equity, ending Stockholders' Equity Attributable to Parent, Beginning Balance Stockholders' Equity Attributable to Parent, Ending Balance SOFR [Member] Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] Dividends Payable, Date to be Paid Dividend payable date Net Income (Loss) Net Income (Loss) Net income Cash and Cash Equivalents [Domain] Statement of Financial Position [Abstract] Percentage of revenue receivable due in proportion of gross revenue of standard billboard. Percentage Of Revenue Receivable Due In Proportion Of Gross Revenue Of Standard Billboard Percentage of revenue due in proportion of gross revenues from each standard billboard The number of units under operating lease arrangements. Number Of Units Subject To Or Available For Operating Lease Number of billboard faces along interstate and primary highways leased Credit Facility [Axis] Credit Facility Environmental Cost, Expense Policy [Policy Text Block] Environmental incidents Continuing operations Income (Loss) from Continuing Operations, Per Basic Share Limitation on the purchase of outstanding capital stock. Limitation On Purchase Of Outstanding Capital Stock Limitation on the purchase of outstanding capital stock Use of Estimates, Policy [Policy Text Block] Use of estimates Income Tax Disclosure [Text Block] Income taxes, continuing operations Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Costs and Expenses [Abstract] Expenses: Current Income Tax Expense (Benefit) Current Current Income Tax Expense (Benefit), Total Loss on sale of discontinued operations, net of tax (Note 9) Loss from sale of discontinued operations Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax, Total Sale of petroleum storage facility and related assets. Sale Of Petroleum Storage Facility And Related Assets [Member] Sale of Petroleum Segment [Member] Reclassification of prior period presentation Reclassification, Comparability Adjustment [Policy Text Block] Revision of Prior Period [Domain] Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations Cash and cash equivalents, ending Cash and cash equivalents, beginning Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations, Total Income Tax Disclosure [Abstract] Entities obligation on cost in excess of actual cost Entities Obligation On Cost In Excess Of Actual Cost Entities obligation on cost in excess of actual cost